% Encoding: UTF-8
@COMMENT{BibTeX export based on data in FAU CRIS: https://cris.fau.de/}
@COMMENT{For any questions please write to cris-support@fau.de}
@article{faucris.113165404,
author = {Schmauß, Bernhard and Rösch, Matthias and et al.},
author_hint = {Meißner Markus, Rösch Mathias, Schmauß Bernhard, Leuchs Gerd},
doi = {10.1109/LPT.2003.816114},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.12dbof},
pages = {1297-1299},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{12dB} of noise reduction by a {NOLM} based 2-{R} regenerator},
volume = {15},
year = {2003}
}
@inproceedings{faucris.117561004,
author = {Meißner, Markus and Rösch, Matthias and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {CLEO Europe, June},
doi = {10.1109/CLEOE.2003.1313604},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2003.tech.IE.LEH.12dbof{\_}5},
title = {12 {dB} of {Noise} {Reduction} by a {NOLM} based all optical all passive {Regenerator}},
year = {2003}
}
@inproceedings{faucris.217946590,
abstract = {We discuss the laser-induced fabrication and detailed structural and optical characterization of a novel carbon allotrope intercalated with bimetallic nanoclusters.},
author = {Manshina, Alina and Petrov, Yuriy and Kolesnikov, I. and Mitetelo, N. V. and Murzina, T. V. and Butt, M. A. and Neugebauer, M. and Banzer, Peter and Leuchs, Gerd},
booktitle = {2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018},
date = {2018-07-29/2018-08-03},
faupublication = {yes},
isbn = {9781943580453},
note = {CRIS-Team Scopus Importer:2019-05-21},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{2D} {Carbon} {Allotrope} with {Incorporated} {Au}-{Ag} {Nanoclusters} - {Laser}-{Induced} {Synthesis} and {Optical} {Characterization}},
venue = {Wanchai, HKG},
year = {2019}
}
@article{faucris.111796784,
abstract = {The performance of a nonlinear amplifying loop mirror as a 2R-regenerator for an 80-Gb/s return-to-zero differential-quadrature-phase-shift-keyed signal has been investigated experimentally. A significant eye-opening improvement and a negative power penalty of up to 2.6 dB were obtained. © 2007 IEEE.},
author = {Cvecek, Kristian and Sponsel, Klaus and Ludwig, R. and Schubert, C. and Stephan, Christian and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/LPT.2007.903755},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
keywords = {2R-regeneration; All-optical regeneration; Differential quadrature phase-shift keying (DQPSK); Nonlinear amplifying loop mirror (NALM)},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.2rrege},
pages = {1475-1477},
peerreviewed = {Yes},
title = {{2R}-{Regeneration} of an 80-{Gb}/s {RZ}-{DQPSK} signal by a nonlinear amplifying loop mirror},
volume = {19},
year = {2007}
}
@article{faucris.209768232,
abstract = {The performance of a nonlinear amplifying loop mirror as a
2R-regenerator for return-to-zero differential-phase-shift-keyed signals
has been investigated experimentally. The measured power
characteristics and phase functions show that the signal amplitude is
regenerated while the signal phase is preserved in the setup. A
significant eye-opening improvement and a negative power penalty of
about 1.5 dB were obtain},
author = {Cvecek, K and Sponsel, K and Onishchukov, G and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/lpt.2006.890094},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
note = {lhft{\_}intern.bib::cvecek07},
pages = {146-148},
peerreviewed = {Yes},
title = {{2R}-{Regeneration} of an {RZ}-{DPSK} {Signal} {Using} a {Nonlinear} {Amplifying} {Loop} {Mirror}},
volume = {19},
year = {2007}
}
@inproceedings{faucris.267487907,
abstract = {We demonstrate a technique for suppressing backscattered light in a whispering-gallery-mode resonator by positioning a sub-wavelength-size scatterer within its evanescent field, achieving at least 34 dB suppression compared to the intrinsic backscattering.},
author = {Svela, Andreas O. and Silver, Jonathan M. and Del Bino, Leonardo and Zhang, Shuangyou and Woodley, Michael T.M. and Vanner, Michael R. and Del'Haye, Pascal},
booktitle = {2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings},
date = {2021-05-09/2021-05-14},
faupublication = {yes},
isbn = {9781943580910},
note = {CRIS-Team Scopus Importer:2021-12-24},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {>30 {dB} {Suppression} of {Intrinsic} {Backscattering} in {Whispering}-{Gallery}-{Mode} {Microresonators}},
venue = {Virtual},
year = {2021}
}
@article{faucris.276451869,
abstract = {Squeezed light generation has come of age. Significant advances on squeezed light generation have been made over the last 30 years - from the initial, conceptual experiment in 1985 till today's top-tuned, application-oriented setups. Here we review the main experimental platforms for generating quadrature squeezed light that have been investigated in the last 30 years.},
author = {Andersen, Ulrik L. and Gehring, Tobias and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1088/0031-8949/91/5/053001},
faupublication = {yes},
journal = {Physica Scripta},
keywords = {entanglement; quantum optics; squeezed light},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {30 years of squeezed light generation},
volume = {91},
year = {2016}
}
@article{faucris.111324664,
abstract = {We experimentally demonstrate bit-error-rate (BER) improvement of more than nine decades by an asymmetric nonlinear optical loop mirror (NOLM). This can be related to an optical signal-to-noise ratio (OSNR) gain of up to 3.9 dB with respect to the NOLM input OSNR at a bit rate of 40 GB/s. The principle of operation of NOLM-based 2-R regeneration with respect to BER improvement is investigated and it is experimentally shown that BER improvement cannot be detected directly at the regenerator's output. © 2004 IEEE.},
author = {Meißner, Markus and Sponsel, Klaus and Cvecek, Kristian and Benz, S. and Weisser, B. and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/LPT.2004.833043},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.39dbos},
pages = {2105-2107},
peerreviewed = {Yes},
title = {3.9-{dB} {OSNR} {Gain} by an {NOLM}-{Based} 2-{R} {Regenerator}},
volume = {16},
year = {2004}
}
@article{faucris.110571604,
abstract = {We discuss different modifications of white light interferometry, for the acquisition of human skin morphology. In a first experiment we display the diffusion of light within tissue, versus time. Light is focused onto the surface of the sample, penetrates the sample, is scattered and partly emerges from the surface again. For each point of the surface we can measure a certain run time profile of the emerging photons, via the speckle contrast. The local scattering behavior of the skin is encoded in the run time profile. Further we present a sensor for the acquisition of cross-sectional images of volume scatterers, we call it "spectral radar." The scattering amplitude a(z) along one vertical axis from the surface into the bulk can be measured within one exposure. No reference arm scanning is necessary, hence a short measurement time is possible. The depth uncertainty within a range of 1000 μm is about 10 μm. In first measurements we distinguished a melanoma maligna from healthy skin, in vitro and we measured the thickness of a fingernail in vivo. We further demonstrate a third method, the "coherence radar" for in vivo measurements of skin surface topology, with an accuracy of a few micrometers, and a field of 512 x 512 pixels. ©2004 Copyright SPIE - The International Society for Optical Engineering.},
author = {Häusler, Gerd and et al.},
author_hint = {Bail M., Eigensee A., Häusler Gerd, Herrmann J., Lindner M.},
doi = {10.1117/12.274298},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {Coherence radar; Human skin; Multiple scattering; Oct; Short coherence interferometry; Skin cancer; Spectral radar; Texture analysis; Volume scatterer},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.3dimag},
pages = {64-75},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{3D}-imaging of human skin - optical in vivo tomography and topology by short coherence interferometry},
volume = {2981},
year = {1997}
}
@inproceedings{faucris.123699004,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Hernanz M. B., Lampalzer R., Schönfeld H.},
booktitle = {Proc. of the 3rd Int. Workshop on Automatic Processing of Fringe Patterns},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1997.nat.dphy.optik.1optik.3dreal},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{3D} {Real} {Time} {Camera}},
venue = {Bremen},
year = {1997}
}
@inproceedings{faucris.238365243,
abstract = {We introduce a software framework that
assembles 3D animations of imaging data
using a textual description with a syntax
based on natural English language. In
contrast to the established key frame
based approach, smooth and complex
motion sequences are intuitively
implemented by concatenating multiple
instructions. [1] The syntax is extensible
and we demonstrate its integration into
existing 3D visualization software. The
user typically stores different rendering
settings and scene transformations in a
number of key frames along a timeline,
and the rendering engine creates a
smooth animation by interpolating
between them. Key frames save the
spatial transformation of an object as a
state, e.g. three angles for a rotation, and
not as a transition. This at least 4 key
frames are required to define a 360-
degree rotation with constant speed
unambiguously. Even more are required if the motion is non-linear, which is essential for achieving
smooth and pleasant motions. Software packages therefore typically provide a shortcut to insert key
frames for rotations around common axes. More complex motions such as combined rotations around
multiple axes, however, are difficult to achieve.
The syntax based on natural English language maximizes experience and provides easy access for
users of distinct fields. Each instruction is an English sentence. Complex motion sequences are
implemented by combining multiple instructions which are applied in the order they appear in the text.
The syntax comprises phrases for standard non-linear accelerations, resulting in smooth and natural
animations. Self-defined macro functions can be used to define motion and other parameters as
functions over time. We provide 3DScript as a Fiji/ImageJ plugin including an hardware-accelerated 3D
renderer and a dedicated editor featuring auto-completion and recording. Although tailored to the
included rendering engine, both the syntax and our animation framework can be easily adapted by other
rendering software.
0om (m > 1) fiber modes into a nearly fundamental Gaussian shape at the output of a fiber. This schematic enables the use of light propagation in higher-order modes of a fiber, a fiber-platform that has recently shown great promise for achieving very large mode areas needed for future high-power lasers and amplifiers. The conversion will be done by using a binary phase plate in the near field of the fiber, which emits the LPom mode. Since the binary phase plate alone cannot increase the quality factor M2 of the laser beam because of some broad sidebands, a filtering of the sidebands is done in the Fourier plane of a telescope. Of course, this will cost some of the total light power, but on the other side the M2 factor can be reduced to nearly the ideal value near 1.0, and it is shown that ∼76% of the total light power can be conserved for all investigated modes (2≤m≤8). A tolerance analysis for the phase plate and its adjustment is made, and different optical imaging systems to form a magnified image of the fiber mode on the phase plate are discussed in order to have more tolerance for the adjustment of the phase plate. © 2007 Optical Society of America.},
author = {Lindlein, Norbert and Leuchs, Gerd and Ramachandran, Srinivasan},
doi = {10.1364/AO.46.005147},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.achiev},
pages = {5147-5157},
peerreviewed = {Yes},
title = {{Achieving} {Gaussian} outputs from large-mode-area higher-order-mode fibers},
volume = {46},
year = {2007}
}
@article{faucris.118421424,
author = {Lindlein, Norbert and et al.},
author_hint = {Schwab M., Lindlein Norbert, Schwider Johannes, Amitai Y., Friesem A. A., Reinhorn S.},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-05:Pub.1994.nat.dphy.optik.1optik.achrom},
pages = {173-184},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Achromatic} diffractive fan-out systems},
volume = {2152},
year = {1994}
}
@article{faucris.117924884,
abstract = {A generalization of the Bell states and Pauli matrices to dimensions which are powers of 2 is considered. A basis of maximally entangled multidimensional bipartite states (MEMBS) is chosen very similar to the standard Bell states and constructed of only symmetric and antisymmetric states. This special basis of MEMBS preserves all basic properties of the standard Bell states. We present a recursive and non-recursive method for the construction of MEMBS and discuss their properties. The antisymmetric MEMBS possess the property of rotationally invariant exclusive correlations which is a generalization of the rotational invariance of the antisymmetric singlet Bell state. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.},
author = {Sych, Denis and Leuchs, Gerd},
doi = {10.1088/1367-2630/11/1/013006},
faupublication = {yes},
journal = {New Journal of Physics},
note = {UnivIS-Import:2015-04-14:Pub.2009.nat.dphy.optik.1optik.acompl},
pages = {013006},
peerreviewed = {Yes},
title = {{A} complete basis of generalized {Bell} states},
volume = {11},
year = {2009}
}
@article{faucris.119321004,
author = {Lindlein, Norbert and et al.},
author_hint = {Eisner M., Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {Technical digest / Optical Society of America},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.aconfo},
pages = {161-163},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} confocal profilometer using microlens arrays},
volume = {10},
year = {1998}
}
@article{faucris.123555344,
abstract = {We present a new possibility for the active frequency stabilization of a laser using transitions in neutral praseodymium. Because of its five outer electrons, this element shows a high density of energy levels leading to an extremely line-rich excitation spectrum with more than 25 000 known spectral lines ranging from the UV to the infrared. We demonstrate the active frequency stabilization of a diode laser on several praseodymium lines between 1105 and 1123 nm. The excitation signals were recorded in a hollow cathode lamp and observed via laser-induced fluorescence. These signals are strong enough to lock the diode laser onto most of the lines by using standard laser locking techniques. In this way, the frequency drifts of the unlocked laser of more than 30 MHz/h were eliminated and the laser frequency stabilized to within 1.4(1) MHz for averaging times > 0.2 s. Frequency quadrupling the stabilized diode laser can produce frequency-stable UV-light in the range from 276 to 281 nm. In particular, using a strong hyperfine component of the praseodymium excitation line E=16 502.616(7/2) cm(-1) -> E = 25442.742(9/2)(0) cm(-1) at lambda=1118.5397(4) nm makes it possible-after frequency quadruplication-to produce laser radiation at lambda/4=279.6349(1) nm, which can be used to excite the D(2) line in Mg(+).},
author = {Oppel, Steffen and Guthörlein, G. H. and Kaenders, W. and von Zanthier, Joachim},
doi = {10.1007/s00340-010-4007-9},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
pages = {33-44},
peerreviewed = {Yes},
title = {{Active} laser frequency stabilization using neutral praseodymium ({Pr})},
volume = {101},
year = {2010}
}
@article{faucris.121088484,
author = {Harder, Irina and Leuchs, Gerd and Mantel, Klaus Peter and Schwider, Johannes},
faupublication = {yes},
journal = {Applied Optics},
pages = {4942},
peerreviewed = {Yes},
title = {{Adaptive} frequency comb illumination for interferometry in the case of nested two-beam cavities},
volume = {50},
year = {2011}
}
@inproceedings{faucris.276457366,
author = {Schunk, Gerhard and Vogl, Ulrich and Förtsch, Michael and Strekalov, Dmitry and Sedlmeir, Florian and Schwefel, Harald G.L. and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2015-06-21/2015-06-25},
faupublication = {yes},
isbn = {9781467374750},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Addressing} {RB} and {CS} transitions with a tunable source of photon pairs},
venue = {Munich, DEU},
year = {2014}
}
@article{faucris.109346424,
author = {Harn, Walter and Bernet, Stefan and Ritsch-Marte, Monica and Harder, Irina and Lindlein, Norbert},
faupublication = {no},
journal = {Optics Express},
pages = {413--421},
peerreviewed = {Yes},
title = {{Adjustable} diffractive spiral phase plates},
volume = {1},
year = {2015}
}
@article{faucris.244323720,
abstract = {Porphyrins represent a versatile class of molecules, the adsorption behavior of which on solid surfaces is of fundamental interest due to a variety of potential applications. We investigate here the molecule-molecule and molecule-substrate interaction of Co-5,15-diphenylporphyrin (Co-DPP) and 2H-tetrakis(p-cyanophenyl)porphyrin (2H-TCNP) on one bilayer (1BL) and two bilayer (2BL) thick cobalt oxide films on Ir(100) by scanning tunneling microscopy (STM) and density functional theory (DFT). The two substrates differ greatly with respect to their structural and potential-energy landscape corrugation with immediate consequences for adsorption and self-assembly of the molecules studied. On both films, an effective electronic decoupling from the metal substrate is achieved. However, on the 1BL film, Co-DPP molecules are sufficiently mobile at 300 K and coalesce to self-assembled molecular islands when cooled to 80 K despite their rather weak intermolecular interaction. In contrast, on the 2BL film, due to the rather flat potential landscape, molecular rotation is thermally activated, which effectively prevents self-assembly. The situation is different for 2H-TCNPP, which, due to the additional functional anchoring groups, does not self-assemble on the 1BL film but forms self-assembled compact islands on the 2BL film. The findings demonstrate the guiding effect of the cobalt oxide films of different thickness and the effect of functional surface anchoring.},
author = {Xiang, Feifei and Schmitt, Tobias and Raschmann, Marco and Schneider, M. Alexander},
doi = {10.3762/bjnano.11.134},
faupublication = {yes},
journal = {Beilstein Journal of Nanotechnology},
note = {CRIS-Team WoS Importer:2020-10-23},
pages = {1516-1524},
peerreviewed = {Yes},
title = {{Adsorption} and self-assembly of porphyrins on ultrathin {CoO} films on {Ir}(100)},
volume = {11},
year = {2020}
}
@article{faucris.119845704,
abstract = {We investigate the impact of peripheral cyano functionalization of the previously well-studied 2H-tetraphenylporphyrin (2HTPP) by scanning tunneling microscopy (STM) and density functional theory (DFT). The adsorption behavior of 2H-tetralds(p-cyano)-phenylporphyrin (2HTCNPP) is studied at room temperature and at 80 K on Cu(111) and Ag(111). Interestingly, the cyano-functionalized porphyrins tend to form isolated ID chains on Cu(111), in particular after mild annealing at 350 K. The individual 2HTCNPPs as well as the formed chains are oriented along the main crystallographic directions of the Cu(111) substrate due to a strongly attractive and site-specific interaction between the iminic nitrogens of the 2HTCNPP and Cu substrate atoms. The linking within the 1D molecular chains is realized by Cu adatoms as evidenced by comparison of STM and DFT. In contrast, on Ag(111) the molecules assemble into 2D supramolecular layers with long-range order and a square unit cell, stabilized by molecule-molecule interactions. The orientation of the molecules with respect to the unit cell lattice vectors leads to organizational chirality. By codeposition of cobalt, the porphyrin molecules are metalated at room temperature. We did not observe any evidence for metal-organic network formation on Ag(111), even after varying the deposition parameters or the order of metal and porphyrin deposition. Our study shows that cyano functionalization of porphyrins can give rise to novel and unique self-assembled structures like 1D molecular chains without any cross-connections via adatom linking.},
author = {Lepper, Michael and Schmitt, Tobias and Gurrath, Martin and Raschmann, Marco and Zhang, Liang and Stark, Michael Werner and Hölzel, Helen and Jux, Norbert and Meyer, Bernd and Schneider, M. Alexander and Steinrück, Hans-Peter and Marbach, Hubertus},
doi = {10.1021/acs.jpcc.7b08382},
faupublication = {yes},
journal = {Journal of Physical Chemistry C},
pages = {26361-26371},
peerreviewed = {Yes},
title = {{Adsorption} {Behavior} of a {Cyano}-{Functionalized} {Porphyrin} on {Cu}(111) and {Ag}(111): {From} {Molecular} {Wires} to {Ordered} {Supramolecular} {Two}-{Dimensional} {Aggregates}},
volume = {121},
year = {2017}
}
@inproceedings{faucris.116724564,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Herrmann J. M., Höfer V., Lindner M., Pavlicek P., Ringler R.},
booktitle = {Proceedings of the EOS Topical Meeting Free Space Micro-Optical Systems},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.nat.dphy.optik.1optik.afibre},
pages = {48-49},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} {Fibre}-{Optical} {Implementation} of {Range} {Sensors}, based on the '{Spectral} {Radar}'},
venue = {Engelberg},
year = {1996}
}
@article{faucris.276469643,
abstract = {We present a method to control the detection events in quantum key distribution systems that use gated single-photon detectors. We employ bright pulses as faked states, timed to arrive at the avalanche photodiodes outside the activation time. The attack can remain unnoticed, since the faked states do not increase the error rate per se. This allows for an intercept-resend attack, where an eavesdropper transfers her detection events to the legitimate receiver without causing any errors. As a side effect, afterpulses, originating from accumulated charge carriers in the detectors, increase the error rate. We have experimentally tested detectors of the system id3110 (Clavis2) from ID Quantique. We identify the parameter regime in which the attack is feasible despite the side effect. Furthermore, we outline how simple modifications in the implementation can make the device immune to this attack. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.},
author = {Wiechers, C. and Lydersen, L. and Wittmann, C. and Elser, Dominique Alexander and Skaar, Johannes and Marquardt, Christoph and Makarov, V. and Leuchs, Gerd},
doi = {10.1088/1367-2630/13/1/013043},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{After}-gate attack on a quantum cryptosystem},
volume = {13},
year = {2011}
}
@article{faucris.276471368,
abstract = {Random numbers are a valuable component in diverse applications that range from simulations1 over gambling to cryptography2,3. The quest for true randomness in these applications has engendered a large variety of different proposals for producing random numbers based on the foundational unpredictability of quantum mechanics4-11. However, most approaches do not consider that a potential adversary could have knowledge about the generated numbers, so the numbers are not verifiably random and unique 12-15. Here we present a simple experimental setup based on homodyne measurements that uses the purity of a continuous-variable quantum vacuum state to generate unique random numbers. We use the intrinsic randomness in measuring the quadratures of a mode in the lowest energy vacuum state, which cannot be correlated to any other state. The simplicity of our source, combined with its verifiably unique randomness, are important attributes for achieving high-reliability, high-speed and lowcost quantum random number generators. © 2010 Macmillan Publishers Limited. All rights reserved.},
author = {Gabriel, Christian and Wittmann, Christoffer and Sych, Denis and Dong, Ruifang and Mauerer, Wolfgang and Andersen, Ulrik L. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1038/nphoton.2010.197},
faupublication = {yes},
journal = {Nature Photonics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {711-715},
peerreviewed = {Yes},
title = {{A} generator for unique quantum random numbers based on vacuum states},
volume = {4},
year = {2010}
}
@article{faucris.252104467,
abstract = {Agile cryptography allows for a resource-efficient swap of a cryptographic core in case the security of an underlying classical cryptographic algorithm becomes compromised. Conversely, versatile cryptography allows the user to switch the cryptographic task without requiring any knowledge of its inner workings. In this paper, we suggest how these related principles can be applied to the field of quantum cryptography by explicitly demonstrating two quantum cryptographic protocols, quantum digital signatures (QDS) and quantum secret sharing (QSS), on the same hardware sender and receiver platform. Crucially, the protocols differ only in their classical postprocessing. The system is also suitable for quantum key distribution (QKD) and is highly compatible with deployed telecommunication infrastructures, since it uses standard quadrature phase-shift keying encoding and heterodyne detection. For the first time, QDS protocols are modified to allow for postselection at the receiver, enhancing protocol performance. The cryptographic primitives QDS and QSS are inherently multipartite, and we prove that they are secure not only when a player internal to the task is dishonest, but also when (external) eavesdropping on the quantum channel is allowed. In our first proof-of-principle demonstration of an agile and versatile quantum communication system, the quantum states are distributed at GHz rates. A 1-bit message may be securely signed using our QDS protocols in less than 0.05 ms over a 2-km fiber link and in less than 0.2 s over a 20-km fiber link. To our knowledge, this also marks the first demonstration of a continuous-variable direct QSS protocol.},
author = {Richter, Stefan and Thornton, Matthew and Khan, Imran and Scott, Hannah and Jaksch, Kevin and Vogl, Ulrich and Stiller, Birgit and Leuchs, Gerd and Marquardt, Christoph and Korolkova, Natalia},
doi = {10.1103/PhysRevX.11.011038},
faupublication = {yes},
journal = {Physical Review X},
note = {CRIS-Team Scopus Importer:2021-03-19},
peerreviewed = {Yes},
title = {{Agile} and {Versatile} {Quantum} {Communication}: {Signatures} and {Secrets}},
volume = {11},
year = {2021}
}
@article{faucris.119871004,
abstract = {A highly miniaturized limb sounder for the observation of the O2 A-Band to derive temperatures in the mesosphere and lower thermosphere is presented. The instrument consists of a monolithic spatial heterodyne spectrometer (SHS), which is able to resolve the rotational structure of the R-branch of that band. The relative intensities of the emission lines follow a Boltzmann distribution and the ratio of the lines can be used to derive the kinetic temperature. The SHS operates at a Littrow wavelength of 761.8 nm and heterodynes a wavelength regime between 761.9 nm and 765.3 nm with a resolving power of about 8000 considering apodization effects. The size of the SHS is 38 × 38 × 27 mm3 and its acceptance angle is ±5°. It has an etendue of 0.014 cm2 sr. Complemented by a front optics with a solid angle of 0.65° and a detector optics, the entire optical system fits into a volume of about 1.5 liters. This allows to fly this instrument on a 3 or 6 unit CubeSat. The vertical field of view of the instrument is about 60 km at the Earth's limb if operated in a typical low Earth orbit. Integration times to obtain an entire altitude profile of nighttime temperatures are in the order of one minute for a vertical resolution of 1.5 km and a random noise level of 1.5 K. Daytime integration times are one order of magnitude shorter. This work presents the design parameters of the optics and a radiometric assessment of the instrument. Furthermore it gives an overview of the required characterization and calibration steps. This includes the characterization of image distortions in the different parts of the optics, flat fielding and the spectral power estimatio},
author = {Kaufmann, Martin and Olschewski, Friedhelm and Mantel, Klaus and Solheim, Brian and Shepherd, Gordon and Deiml, Michael and Liu, Jilin and Song, Rui and Chen, Qiuyu and Wroblowski, Oliver and Wei, Daikang and Zhu, Yajun and Wagner, Fritz and Loosen, Florian and Fröhlich, Denis and Neubert, Tom and Rongen, Heinz and Knieling, Peter and Toumpas, Panos and Shan, Jinjun and Tang, Geshi and Koppmann, Ralf and Riese, Martin},
doi = {10.5194/amt-2017-437},
faupublication = {yes},
journal = {Atmospheric Measurement Techniques},
pages = {1--19},
peerreviewed = {Yes},
title = {{A} highly miniaturized satellite payload based on a spatial heterodyne spectrometer for atmospheric temperature measurements in the mesosphere and lower thermosphere},
url = {https://www.atmos-meas-tech-discuss.net/amt-2017-437/},
volume = {2018},
year = {2018}
}
@inproceedings{faucris.281173007,
abstract = {We present a high-rate fiber-integrated quantum receiver for phase-encoded satellite-based QKD. We highlight concepts for time synchronization as well as compensation of the Doppler shift and optimized quantum signal processing.},
author = {Rößler, Conrad and Günthner, Kevin and Hacker, Bastian and Leuchs, Gerd and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2022-06-13/2022-06-16},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2022-09-02},
peerreviewed = {unknown},
publisher = {Optica Publishing Group (formerly OSA)},
title = {{A} {High}-{Rate} {Receiver} for {Satellite} {Quantum} {Key} {Distribution}},
url = {https://opg.optica.org/abstract.cfm?uri=quantum-2022-QTh3A.2},
venue = {Boston, MA, USA},
year = {2022}
}
@inproceedings{faucris.276463010,
abstract = {A high-speed continuous-variable quantum random bit generator with an expected effective bit generation rate of up to 10 GBit/s is presented. The obtained bit sequences are truly random and unique, i.e. they cannot be known by an adversary. © 2012 OSA.},
author = {Gabriel, Christian and Wittmann, Christoffer and Hacker, Bastian and Mauerer, Wolfgang and Huntington, Elanor and Sabuncu, Metin and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {2012 Conference on Lasers and Electro-Optics, CLEO 2012},
date = {2012-05-06/2012-05-11},
faupublication = {yes},
isbn = {9781467318396},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{A} high-speed secure quantum random number generator based on vacuum states},
venue = {USA},
year = {2012}
}
@inproceedings{faucris.243312595,
abstract = {We use interferometric scattering microscopy (iSCAT) to study in-situ secretion dynamics of living cells. The method allows us to optically detect single proteins in real-time without the need for labeling.},
author = {Gemeinhardt, Andre and König, Katharina and Dahmardeh, Mahyar and Sandoghdar, Vahid},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-04-20/2020-04-23},
doi = {10.1364/MICROSCOPY.2020.MTu1A.3},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-10-02},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{A} high throughput device for label-free real-time study of cellular secretion with {iSCAT} microscopy},
venue = {Washington, DC},
volume = {Part F177-Microscopy-2020},
year = {2020}
}
@article{faucris.106807844,
abstract = {In certain applications, modal wavefront sensors (MWFSs) can outperform zonal
wavefront sensors, which are widely used due to their high flexibility. In this paper, a
holography-based MWFS as described is developed for the fast position control of a light
emitter in a deep parabolic mirror. The light source is located in the vicinity of the focal
point. Instead of Zernike polynomials, more complex phase functions, which are related to
certain dislocations of the light source are used as detector modes. The performance of
the sensor is verified with a test setup, where the test wavefront is generated by a spatial
light modulator instead of a real parabolic mirror. The design and fabrication of the required
high-resolution holographic element is described and an easy way of multiplexing several
single mode sensors is demonstrated.},
author = {Loosen, Florian and Stehr, Johannes and Alber, Lucas and Harder, Irina and Lindlein, Norbert},
doi = {10.1109/JPHOT.2018.2799383},
faupublication = {yes},
journal = {Ieee Photonics Journal},
keywords = {advanced optics design, diffractive optics, holography},
month = {Jan},
pages = {1-11},
peerreviewed = {Yes},
title = {{A} {Holography}-{Based} {Modal} {Wavefront} {Sensor} for the {Precise} {Positioning} of a {Light} {Emitter} {Using} a {High}-{Resolution} {Computer}-{Generated} {Hologram}},
url = {http://ieeexplore.ieee.org/document/8276641/},
volume = {10},
year = {2018}
}
@inproceedings{faucris.120469844,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St., Ritter D.},
booktitle = {Bildverarbeitung '97: Forschen, Entwickeln, Anwenden},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1997.nat.dphy.optik.1optik.akquis},
pages = {277-291},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Akquisition} und {Verarbeitung} von {3D}-{Daten} für die angewandte {Messtechnik}},
venue = {Esslingen},
year = {1997}
}
@article{faucris.110945164,
abstract = {Normally, the dynamic range of a Shack-Hartmann sensor is limited by the foci leaving their respective subapertures, thus a definite attachment of the foci to their subapertures is difficult. By using an array of spatial light modulators in front of the microlenses of the sensor to switch on and off the subapertures, a definite assignment of the spots to their subapertures is possible. We present a coding algorithm that needs only log2 N+1 frames to assign N spots unequivocal to their subapertures. © 2001 Society of Photo-Optical Instrumentation Engineers.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Pfund Johannes, Schwider Johannes},
doi = {10.1117/1.1357193},
faupublication = {yes},
journal = {Optical Engineering},
keywords = {Coding algorithm; Microlenses; Shack-Hartmann sensor; Spatial light modulator},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.algori},
pages = {837-840},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Algorithm} for expanding the dynamic range of a {Shack}-{Hartmann} sensor by using a spatial light modulator array},
volume = {40},
year = {2001}
}
@article{faucris.111326864,
author = {Leuchs, Gerd and et al.},
author_hint = {Meißner Markus, Marquardt Christoph, Heersink Joel, Gaber T., Wietfeld André, Leuchs Gerd, Andersen Ulrik},
faupublication = {yes},
journal = {Journal of Optics B Quantum and Semiclassical Optics},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.allfib},
pages = {652-657},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{All}-fibre source of amplitude squeezed lightpulses},
volume = {6},
year = {2004}
}
@article{faucris.319222319,
abstract = {An all-fibre source of amplitude squeezed solitons utilizing the self-phase modulation in an asymmetric Sagnac interferometer is experimentally demonstrated. The asymmetry of the interferometer is passively controlled by an integrated fibre coupler, allowing for the optimization of the noise reduction. We have carefully studied the dependence of the amplitude noise on the asymmetry and the power launched into the Sagnac interferometer. Qualitatively, we find good agreement between the experimental results, a semi-classical theory and earlier numerical calculations (Schmitt et al 1998 Phys. Rev. Lett. 81 2446). The stability and flexibility of this all-fibre source makes it particularly well suited to applications in quantum information science.
-4
and δ
6h
= 7.25 ×10
-4
(±0.04 × 10
-4
). In addition, we infer the direction (229.°2 ± 3.°5 R.A., 11.°4 ± 3.°0 decl.) of the interstellar magnetic field from the boundary between large-scale excess and deficit regions from which we estimate the missing corresponding vertical dipole component of the large-scale anisotropy to be δN ∼ -3.97
+1.0
-2.0
× 10
-4
.},
author = {Abeysekara, A. U. and Alfaro, R. and Alvarez, C. and Arceo, R. and Arteaga-Velazquez, J. C. and Avila Rojas, D. and Belmont-Moreno, E. and Benzvi, S. Y. and Brisbois, C. and Capistran, T. and Carramiana, A. and Casanova, S. and Cotti, U. and Cotzomi, J. and Diaz-Velez, J. C. and De Leon, C. and De La Fuente, E. and Dichiara, S. and Duvernois, M. A. and Espinoza, C. and Fiorino, D. W. and Fleischhack, H. and Fraija, N. and Galvan-Gamez, A. and Garcia-Gonzalez, J. A. and Gonzalez, M. M. and Goodman, J. A. and Hampel-Arias, Z. and Harding, J. P. and Hernandez, S. and Hona, B. and Hueyotl-Zahuantitla, F. and Iriarte, A. and Jardin-Blicq, A. and Joshi, Vikas and Lara, A. and Vargas, H. Leon and Luis-Raya, G. and Malone, K. and Marinelli, S. S. and Martinez-Castro, J. and Martinez, O. and Matthews, J. A. and Miranda-Romagnoli, P. and Moreno, E. and Mostafa, M. and Nellen, L. and Newbold, M. and Nisa, M. U. and Noriega-Papaqui, R. and Perez-Perez, E. G. and Pretz, J. and Ren, Z. and Rho, C. D. and Riviere, C. and Rosa-Gonzalez, D. and Rosenberg, M. and Salazar, H. and Greus, F. Salesa and Sandoval, A. and Schneider, M. and Schoorlemmer, H. and Sinnis, G. and Smith, A. J. and Surajbali, P. and Taboada, I. and Tollefson, K. and Torres, I. and Villaseor, L. and Weisgarber, T. and Wood, J. and Zepeda, A. and Zhou, H. and Alvarez, J. D. and Aartsen, M. G. and Ackermann, M. and Adams, J. and Aguilar, J. A. and Ahlers, M. and Ahrens, M. and Altmann, D. and Andeen, K. and Anderson, T. and Ansseau, I. and Anton, Gisela and Arguelles, C. and Auffenberg, J. and Axani, S. and Backes, P. and Bagherpour, H. and Bai, X. and Barbano, A. and Barron, J. P. and Barwick, S. W. and Baum, V. and Bay, R. and Beatty, J. J. and Tjus, J. Becker and Becker, K. -H. and Benzvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Bindig, D. and Blaufuss, E. and Blot, S. and Bohm, C. and Boerner, M. and Bos, F. and Boeser, S. and Botner, O. and Bourbeau, E. and Bourbeau, J. and Bradascio, F. and Braun, J. and Bretz, H. -P. and Bron, S. and Brostean-Kaiser, J. and Burgman, A. and Busse, R. S. and Carver, T. and Cheung, E. and Chirkin, D. and Clark, K. and Classen, L. and Collin, G. H. and Conrad, J. M. and Coppin, P. and Correa, P. and Cowen, D. F. and Cross, R. and Dave, P. and Day, M. and De Andre, J. P. A. M. and De Clercq, C. and Delaunay, J. J. and Dembinski, H. and Deoskar, K. and De Ridder, S. and Desiati, P. and De Vries, K. D. and De Wasseige, Gwenhael and De With, M. and Deyoung, T. and Diaz-Velez, J. C. and Dujmovic, H. and Dunkman, M. and Dvorak, E. and Eberhardt, B. and Ehrhardt, T. and Eichmann, B. and Eller, P. and Evenson, P. A. and Fahey, S. and Fazely, A. R. and Felde, J. and Filimonov, K. and Finley, C. and Franckowiak, A. and Friedman, E. and Fritz, A. and Gaisser, T. K. and Gallagher, J. and Ganster, E. and Garrappa, S. and Gerhardt, L. and Ghorbani, K. and Giang, W. and Glauch, T. and Glüsenkamp, Thorsten and Goldschmidt, A. and Gonzalez, J. G. and Grant, D. and Griffith, Z. and Haack, C. and Hallgren, A. and Halve, L. and Halzen, F. and Hanson, K. and Hebecker, D. and Heereman, D. and Helbing, K. and Hellauer, R. and Hickford, S. and Hignight, J. and Hill, G. C. and Hoffman, K. D. and Hoffmann, R. and Hoinka, T. and Hokanson-Fasig, B. and Hoshina, K. and Huang, F. and Huber, M. and Hultqvist, K. and Huennefeld, M. and Hussain, R. and In, S. and Iovine, N. and Ishihara, A. and Jacobi, E. and Japaridze, G. S. and Jeong, M. and Jero, K. and Jones, B. J. P. and Kalaczynski, P. and Kang, W. and Kappes, A. and Kappesser, D. and Karg, T. and Karle, A. and Katz, Uli and Kauer, M. and Keivani, A. and Kelley, J. L. and Kheirandish, A. and Kim, J. and Kintscher, T. and Kiryluk, J. and Kittler, Thomas and Klein, S. R. and Koirala, R. and Kolanoski, H. and Koepke, L. and Kopper, C. and Kopper, S. and Koskinen, D. J. and Kowalski, M. and Krings, K. and Kroll, M. and Krueckl, G. and Kunwar, S. and Kurahashi, N. and Kyriacou, A. and Labare, M. and Lanfranchi, J. L. and Larson, M. J. and Lauber, Frederik and Leonard, K. and Leuermann, M. and Liu, Q. R. and Lohfink, E. and Mariscal, C. J. Lozano and Lu, L. and Lunemann, J. and Luszczak, W. and Madsen, J. and Maggi, G. and Mahn, K. B. M. and Makino, Y. and Mancina, S. and Maris, I. C. and Maruyama, R. and Mase, K. and Maunu, R. and Meagher, K. and Medici, M. and Meier, M. and Menne, T. and Merino, G. and Meures, T. and Miarecki, S. and Micallef, J. and Momente, G. and Montaruli, T. and Moore, R. W. and Moulai, M. and Nagai, R. and Nahnhauer, R. and Nakarmi, P. and Naumann, U. and Neer, G. and Niederhausen, H. and Nowicki, S. C. and Nygren, D. R. and Pollmann, A. Obertacke and Olivas, A. and O'Murchadha, A. and O'Sullivan, E. and Palczewski, T. and Pandya, H. and Pankova, D. V. and Peiffer, P. and Pepper, J. A. and De Los Heros, C. Perez and Pieloth, D. and Pinat, E. and Pizzuto, A. and Plum, M. and Price, P. B. and Przybylski, G. T. and Raab, C. and Rameez, M. and Rauch, L. and Rawlins, K. and Rea, I. C. and Reimann, R. and Relethford, B. and Renzi, G. and Resconi, E. and Rhode, W. and Richman, M. and Robertson, S. and Rongen, M. and Rott, C. and Ruhe, T. and Ryckbosch, D. and Rysewyk, D. and Safa, I. and Herrera, S. E. Sanchez and Sandrock, A. and Sandroos, J. and Santander, M. and Sarkar, Subir and Sarkar, Subir and Satalecka, K. and Schaufel, M. and Schlunder, P. and Schmidt, T. and Schneider, Austin and Schneider, Jessica and Schoeneberg, S. and Schumacher, L. and Sclafani, S. and Seckel, D. and Seunarine, S. and Soedingrekso, J. and Soldin, D. and Song, M. and Spiczak, G. M. and Spiering, C. and Stachurska, J. and Stamatikos, M. and Stanev, T. and Stasik, A. and Stein, R. and Stettner, J. and Steuer, A. and Stezelberger, T. and Stokstad, R. G. and Stossl, A. and Strotjohann, N. L. and Stuttard, T. and Sullivan, G. W. and Sutherland, M. and Taboada, I. and Tenholt, F. and Ter-Antonyan, S. and Terliuk, A. and Tilav, S. and Toale, P. A. and Tobin, M. N. and Tonnis, C. and Toscano, S. and Tosi, D. and Tselengidou, Maria and Tung, C. F. and Turcati, A. and Turcotte, R. and Turley, C. F. and Ty, B. and Unger, E. and Elorrieta, M. A. Unland and Usner, M. and Vandenbroucke, J. and Van Driessche, W. and Van Eijk, D. and Van Eijndhoven, N. and Vanheule, S. and Van Santen, J. and Vraeghe, M. and Walck, C. and Wallace, A. and Wallraff, M. and Wandler, F. D. and Wandkowsky, N. and Watson, T. B. and Weaver, C. and Weiss, M. J. and Wendt, C. and Werthebach, J. and Westerhoff, S. and Whelan, B. J. and Whitehorn, N. and Wiebe, K. and Wiebusch, C. H. and Wille, L. and Williams, D. R. and Wills, L. and Wolf, M. and Wood, J. and Wood, T. R. and Woolsey, E. and Woschnagg, K. and Wrede, Gerrit and Xu, D. L. and Xu, X. W. and Xu, Y. and Yanez, J. P. and Yodh, G. and Yoshida, S. and Yuan, T.},
doi = {10.3847/1538-4357/aaf5cc},
faupublication = {yes},
journal = {Astrophysical Journal},
keywords = {astroparticle physics; cosmic rays; ISM: magnetic fields},
month = {Jan},
note = {CRIS-Team Scopus Importer:2019-05-02},
peerreviewed = {Yes},
title = {{All}-sky {Measurement} of the {Anisotropy} of {Cosmic} {Rays} at 10 {TeV} and {Mapping} of the {Local} {Interstellar} {Magnetic} {Field}},
volume = {871},
year = {2019}
}
@inproceedings{faucris.122416624,
abstract = {In this paper we present a concept study for a highly miniaturized interferometer for the
deployment on micro- and nano-satellites to measure atmospheric temperature. The selected technology is a Spatial Heterodyne Spectrometer (SHS). It is known since 1958, but its manufacturability gained increasing attention during the last decade because of improvements in detector and computer technology. The throughput of a SHS is orders of magnitude larger than of a conventional grating spectrometer of the same size. It can be designed to deliver extraordinary spectral resolution to resolve individual emission or absorption lines, or even Doppler shifts. We introduce the SHS technology and an instrument design to measure the ro-vibrational structure of the O2 atmospheric band at 762 nm in limb viewing geometry. Design considerations of a potential SHS spectrometer and of the overall optical system are discussed. Requirements for a potential satellite platform hosting this instrument are presented, in particular in view of the utilization of CubeSats or other nano-satellite platforms. Potential mission scenarios for three-dimensional sounding of the atmosphere taking advantage of the agility of small satellites are given.},
author = {Kaufmann, Martin and Deiml, Michael and Olschewski, Friedhelm and Mantel, Klaus and Wagner, Fritz and Loosen, Florian and Fröhlich, Denis and Rongen, Heinz and Neubert, Tom and Rottland, Björn and Schneider, Herbert and Riese, Martin and Knieling, Peter and Liu, Jilin and Song, Rui and Wroblowski, Oliver and Chen, Qiuyu and Koppmann, Ralf and Solheim, Brian and Shan, Jinjun and Shepherd, Gordon},
booktitle = {Proceeding, 11. IAA Symposium on Small Satellites for Earth Observation},
faupublication = {yes},
peerreviewed = {unknown},
title = {{A} miniaturized satellite payload hosting a spatial heterodyne spectrometer for remote sensing of atmospheric temperature},
venue = {Berlin},
year = {2017}
}
@inproceedings{faucris.288234845,
address = {Venet, Austria},
author = {Eichler, Christopher},
booktitle = {Meeting of the CCQED fellows},
date = {2014-03-24},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Amplification} of {Microwave} {Signals} at the {Quantum} {Limit}},
venue = {Venet, Austria},
year = {2014}
}
@inproceedings{faucris.119845484,
author = {Roethlingshoefer, Tobias and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference},
doi = {10.1109/CLEOE.2011.5942977},
faupublication = {yes},
note = {lhft{\_}intern.bib::Roethlingshoefer2011},
peerreviewed = {Yes},
publisher = {Institute of Electrical & Electronics Engineers (IEEE)},
title = {{Amplitude} noise reduction in multilevel {QAM} formats using a nonlinear amplifying loop mirror with a saturable amplifier},
venue = {Munich},
year = {2011}
}
@article{faucris.122958924,
abstract = {The feedback strength is a crucial parameter for feedback experiments using semiconductor lasers. In this article, the coupling efficiency of the field of vertical-cavity surface-emitting lasers (VCSELs) to external cavities containing one collimating lens has been analyzed in detail using ABCD-matrix methods. It is found that for a given set of parameters there are two distinct, experimentally realizable positions of the collimating lens which allow for optimal coupling, if the cavity length is sufficiently small. The predictions are verified in experiments using single-transverse-mode VCSELs. The obtained coupling efficiencies exceed 70%. © 2007 Elsevier B.V. All rights reserved.},
author = {Jentsch, Karl Friedrich and Sondermann, Markus and Ackemann, Thorsten},
doi = {10.1016/j.optcom.2007.11.066},
faupublication = {yes},
journal = {Optics Communications},
keywords = {Coupling efficiency; Feedback; Vertical-cavity surface-emitting lasers},
pages = {1396-1400},
peerreviewed = {Yes},
title = {{Analysis} and optimization of coupling to external cavities in feedback experiments with vertical-cavity surface-emitting lasers},
volume = {281},
year = {2008}
}
@inproceedings{faucris.235206527,
abstract = {This paper analyzes an approach for additively manufacturing polymer
optical waveguides. The production process includes flexographic
printing of conditioning lines (5 μm height) on a substrate, which are
used as guiding barriers in the subsequent printing of the optical core.
The core is additively printed (up to 50 μm in height) with an aerosol
jet printer, filling the gap between the conditioning lines. The
conditioning lines do not only enhance the contact angle of the polymer,
which results in a higher cross section of the waveguides, but also
improve the straight edges of the printed waveguides. We show that the
quality of the conditioning lines is directly correlated to the waviness
of the waveguides. Consequently, the analyses of the waviness of the
conditioning lines classifies the quality of the fabricated waveguides.
However, the waviness of the waveguides can also be considered in
optical simulations. In this paper we show how we derive a waveguide
model with waviness by fitting a single sine function onto the
topological data of the conditioning lines. With this model a variation
of the waviness can easily be simulated and goals for fabrication can be
set. With the simulations it is possible to verify that the measured
waviness (period of 559.5 μm and an amplitude of 4.99 μm) does not
affect the optical quality of the waveguide},
author = {Backhaus, Carsten and Hoffmann, Gerd-Albert and Reitberger, Thomas and Eiche, Yannic and Overmeyer, Ludger and Franke, Jörg and Lindlein, Norbert},
booktitle = {Integrated Optics: Devices, Materials, and Technologies XXIV},
date = {2020-02-01/2020-02-06},
doi = {10.1117/12.2543202},
editor = {García-Blanco SM, Cheben P},
faupublication = {yes},
keywords = {Polymer Optical Waveguides, Waviness, Additive Manufacturing, Waveguide Simulation, Aerosol Jet Printing},
pages = {193 -- 202},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Analysis} of additive manufactured polymer optical waveguides: measurement and simulation of their waviness},
venue = {San Francisco, California, United States},
volume = {11283},
year = {2020}
}
@article{faucris.119959884,
abstract = {Aspheric surfaces are increasingly used in the design of high-quality optical imaging systems. Therefore accurate testing methods for aspherics are also necessary. One possibility is to use a computer-generated hologram (CGH) as a part of a null lens in an interferometric testing device. However, CGHs normally have more than one diffraction order, thus causing disturbing areas in the interferogram. Here a simple approximative analytical expression is given for the spatial frequencies of the disturbing light in the interferogram coming from the different diffraction orders of the CGH. This expression also enables one to calculate the size and the shape of the disturbing areas in the interferogram. Some design examples for CGHs are given in an application of the expression. © 2001 Optical Society of America.},
author = {Lindlein, Norbert},
doi = {10.1364/AO.40.002698},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.analys},
pages = {2698-2708},
peerreviewed = {Yes},
title = {{Analysis} of the disturbing diffraction orders of computer-generated holograms used for testing optical aspherics},
volume = {40},
year = {2001}
}
@article{faucris.282413950,
abstract = {We analyze and compare the output signals obtained in three different configurations of optical coherence tomography (OCT). After appropriate processing, these signals are used to retrieve an image of the sample under investigation. One of the configurations considered is the common choice in most OCT applications and is based on the use of a Michelson interferometer. For brevity, here we refer to it as standard OCT. The other two configurations are two types of optical coherence tomography based on the use of so-called nonlinear interferometers, interferometers that contain optical parametric amplifiers inside. The goal is to highlight the differences and similarities between the output signals measured in standard OCT and in these two OCT schemes, with the aim of evaluating if retrieval of information about the sample can be better done in one case over the others. We consider schemes where the optical sectioning of the sample is obtained by measuring the output signal spectrum (spectral or Fourier-domain OCT), since it shows better performance in terms of speed and sensitivity than the counterpart time-domain OCT.},
author = {Rojas-Santana, Arturo and Machado, Gerard J. and Chekhova, Maria and Lopez-Mago, Dorilian and Torres, Juan P.},
doi = {10.1103/PhysRevA.106.033702},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-09-30},
peerreviewed = {Yes},
title = {{Analysis} of the signal measured in spectral-domain optical coherence tomography based on nonlinear interferometers},
volume = {106},
year = {2022}
}
@article{faucris.213305579,
abstract = {The article proposes an LC-circuit model for single split ring resonators (SRRs) operating at far infrared and optical frequencies. Taking the effects of magnetic and kinetic inductances as well as gap and surface capacitances into account, we obtain analytical expressions for the resonant frequency of the singly, doubly, and quadruply split SRRs. Comparing the analytical results with numerical simulations, we show that the numerical simulations agree better with the present model than with the models reported previously. We also discuss a size dependent correction to the electron collision frequency which takes into account electron collisions with SRR walls.},
author = {Delgado, V. and Sydoruk, Oleksiy and Tatartschuk, Eugen and Marqués, R. and Freire, M. J. and Jelinek, L.},
doi = {10.1016/j.metmat.2009.03.001},
faupublication = {yes},
journal = {Metamaterials},
note = {EAM Import::2019-03-13},
pages = {57-62},
peerreviewed = {unknown},
title = {{Analytical} circuit model for split ring resonators in the far infrared and optical frequency range},
volume = {3},
year = {2009}
}
@article{faucris.213305254,
abstract = {A simple approximate expression is derived for the resonant frequency of a singly split single ring that is among the first microwave resonators designed to be small relative to the wavelength. In addition to the usual gap capacitance the concept of surface capacitance is introduced. The surface capacitance is determined analytically by two different methods, first using analytical expressions for the electric field of a split cylinder, and second by using conformal mapping. Taking two practical examples the resonant frequency, found analytically, is shown to agree with that obtained by numerical simulations. The model could be used for studies of the resonant properties of split rings in the terahertz region.},
author = {Sydoruk, Oleksiy and Tatartschuk, Eugen and Shamonina, E. and Solymar, L.},
doi = {10.1063/1.3056052},
faupublication = {yes},
journal = {Journal of Applied Physics},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Analytical} formulation for the resonant frequency of split rings},
volume = {105},
year = {2009}
}
@article{faucris.251041412,
abstract = {We present an analytical model to account for the deformation-induced inertial dynamics of a magnetic vortex. The model is based on a deformation of the vortex core profile based on the Döring kinetic field, whereby the deformation amplitudes are promoted to dynamical variables in a collective-coordinate approach that provides a natural extension to the Thiele model. This extended model describes complex transients due to inertial effects and the variation of the effective mass with velocity. The model also provides a quantitative description of the inertial dynamics leading up to vortex core reversal, which is analogous to the Walker transition in domain wall dynamics. Our work paves the way for a standard prescription for describing the inertial effects of topological magnetic solitons.},
author = {Yoo, Myoung Woo and Mineo, Francesca and Kim, Joo Von},
doi = {10.1063/5.0039535},
faupublication = {yes},
journal = {Journal of Applied Physics},
note = {CRIS-Team Scopus Importer:2021-03-05},
peerreviewed = {Yes},
title = {{Analytical} model of the deformation-induced inertial dynamics of a magnetic vortex},
volume = {129},
year = {2021}
}
@article{faucris.111798324,
abstract = {We have experimentally demonstrated the efficient creation of highly entangled bipartite continuous variable polarization states. Exploiting an optimized scheme for the production of squeezing using the Kerr non-linearity of a glass fibre we generated polarization squeezed pulses with a mean classical excitation in Ŝ3. Polarization entanglement was generated by interfering two independent polarization squeezed fields on a symmetric beam splitter. The resultant beams exhibit strong quantum noise correlations in the dark Ŝ1-Ŝ2 polarization plane. To verify entanglement generation, we characterized the quantum correlations of the system for two different sets of conjugate Stokes parameters. The quantum correlations along the squeezed and the anti-squeezed Stokes parameters were observed to be -4.1 ±0.3 and -2.6 ±0.3 dB below the shot noise level, respectively. The degree of correlations was found to depend critically on the beam-splitting ratio of the entangling beam splitter. Carrying out measurements on a different set of conjugate Stokes parameters, correlations of -3.6 ±0.3 and -3.4 ±0.3 dB have been observed. This result is more robust against asymmetries in the entangling beam splitter, even in the presence of excess noise. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.},
author = {Leuchs, Gerd and et al.},
author_hint = {Dong Ruifang, Heersink Joel, Yoshikawa Jun-Ichi, Gloeckl Oliver, Andersen Ulrik L., Leuchs Gerd},
doi = {10.1088/1367-2630/9/11/410},
faupublication = {yes},
journal = {New Journal of Physics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.aneffi},
pages = {410},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{An} efficient source of continuous variable polarization entanglement},
volume = {9},
year = {2007}
}
@article{faucris.111798544,
abstract = {Focusing electromagnetic radiation efficiently onto an atom requires an open geometry, which is as close to the full solid angle as possible. Additionally, the radiant intensity should be as close as possible to a dipole radiation in order to have a similar field distribution as in the emission process. Here, we propose to make use of a novel combination of a parabolic mirror and a diffractive optical element. © 2007 MAIK "Nauka/ Interperiodica".},
author = {Lindlein, Norbert and Maiwald, Robert and Konermann, Hildegard and Sondermann, Markus and Peschel, Ulf and Leuchs, Gerd},
doi = {10.1134/S1054660X07070055},
faupublication = {yes},
journal = {Laser Physics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.anew4p},
pages = {927-934},
peerreviewed = {Yes},
title = {{A} new 4 pi geometry optimized for focusing on an atom with a dipole-like radiation pattern},
volume = {17},
year = {2007}
}
@article{faucris.110673244,
abstract = {In order to digitize the whole surface of a three-dimensional object by means of an optical range sensor, usually multiple range images are acquired from different viewpoints and merged into a single surface description. The simplest and most accurate way is to generate a polyhedral surface. The data are usually distorted by measuring errors like noise, aliasing, outliers, calibration and registration errors, etc., so that they have to be filtered. Calibration and registration errors first appear after merging of different views. As the merged data are no longer represented on a grid, conventional filters for digital signal processing are not applicable. We introduce a new approach for modeling and smoothing scattered data based on an approximation of a mesh of circular arcs. This new method enables interpolation of curved surfaces using solely the vertex position and the associated vertex normals of a polyhedral mesh. The new smoothing filter is specifically adapted to the requirements of geometric data, as it minimizes curvature variations. In contrast to linear filters, undesired surface undulations are avoided, which is an important pre-condition for NC milling and rendering.},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St.},
doi = {10.1117/12.302451},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {Geometric modeling; Reverse engineering; Scattered data interpolation; Scattered data modeling; Smoothing of polyhedral surfaces; Surface approximation; Surface interpolation; Surface reconstruction; Surface smoothing},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.anewap},
pages = {168-177},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} new approach for modeling and smoothing of scattered {3D} data},
volume = {3313},
year = {1998}
}
@article{faucris.122845404,
author = {Häusler, Gerd and et al.},
author_hint = {Eigensee A., Häusler Gerd, Herrmann J., Lindner M.},
faupublication = {yes},
journal = {SPIE j},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.anewme},
pages = {169-178},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} new method of short-coherence interferometry in human skin (in vivo) and in solid volume scatterers},
volume = {2925},
year = {1996}
}
@inproceedings{faucris.117128044,
author = {Leuchs, Gerd and et al.},
author_hint = {Quabis Susanne, Dorn Ralf, Eberler Manfred, Glöckl Oliver, Leuchs Gerd},
booktitle = {EOS Topical Meetings Digest},
faupublication = {yes},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.anewme},
pages = {60-61},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} new method to reduce the spot size at a focused laser beam},
volume = {25},
year = {2000}
}
@inproceedings{faucris.119085164,
address = {Berlin},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St., Seeger Stephan},
booktitle = {Proc. of Vision, Modeling and Visualization 2000},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2000.nat.dphy.optik.1optik.anonli},
pages = {163-170},
peerreviewed = {No},
publisher = {Akademische Verlagsgesellschaft Aka
GmbH},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} {Non}-linear {Subdivision} {Scheme} for {Triangle} {Meshes}},
year = {2000}
}
@article{faucris.111449844,
abstract = {We report on a novel pseudothermal light source based on laser light coupled into an optical multimode fiber. The setup is simple, low cost, exhibits inherently high directional light emission and allows for a flexible arrangement. By measuring the photon statistics and spatial two point intensity correlations in the far field we show that the setup exhibits all characteristics of a Gaussian random sourc},
author = {Mehringer, Thomas and Oppel, Steffen and von Zanthier, Joachim},
doi = {10.1007/s00340-017-6775-y},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
peerreviewed = {Yes},
title = {{An} optical multimode fiber as pseudothermal light source},
volume = {123},
year = {2017}
}
@article{faucris.276462277,
abstract = {We implement an ultrafast pulsed type-II parametric down conversion source in a periodically poled KTP waveguide at telecommunication wavelengths with almost identical properties between signal and idler. As such, our source resembles closely a pure, genuine single mode photon pair source with indistinguishable modes. We measure the joint spectral intensity distribution and second order correlation functions of the marginal beams and find with both methods very low effective mode numbers corresponding to a Schmidt number below 1.16. We further demonstrate the indistinguishability as well as the purity of signal and idler photons by Hong-Ou-Mandel interferences between signal and idler and between signal/idler and a coherent field, respectively. Without using narrowband spectral filtering, we achieve a visibility for the interference between signal and idler of 94.8% and determine a purity of more than 80% for the heralded single photon states. Moreover, we measure raw heralding efficiencies of 20.5% and 15.5% for the signal and idler beams corresponding to detector-loss corrected values of 80% and 70%. © 2013 Optical Society of America.},
author = {Harder, Georg and Ansari, Vahid and Brecht, Benjamin and Dirmeier, Thomas and Marquardt, Christoph and Silberhorn, Christine},
doi = {10.1364/OE.21.013975},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {13975-13985},
peerreviewed = {Yes},
title = {{An} optimized photon pair source for quantum circuits},
volume = {21},
year = {2013}
}
@article{faucris.117352224,
abstract = {Photonic Crystal Fibers can be tailored to increase the effective Kerr nonlinearity, while producing smaller amounts of excess noise compared to standard silicon fibers. Using these features of Photonic Crystal Fibers we create polarization squeezed states with increased purity compared to standard fiber squeezing experiments. Explicit we produce squeezed states in counter propagating pulses along the same fiber axis to achieve near identical dispersion properties. This enables the production of polarization squeezing through interference in a polarization type Sagnac interferometer. We observe Stokes parameter squeezing of -3.9 ± 0.3dB andanti-squeezingof 16.2 ±0.3dB. © 2010 Optical Society of America.},
author = {Leuchs, Gerd and et al.},
author_hint = {Milanovic Josip, Lassen Mikael, Andersen Ulrik L, Leuchs Gerd},
doi = {10.1364/OE.18.001521},
faupublication = {yes},
journal = {Optics Express},
note = {UnivIS-Import:2015-03-09:Pub.2010.nat.dphy.optik.1optik.anovel},
pages = {1521-1527},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} novel method for polarization squeezing with {Photonic} {Crystal} {Fibers}},
volume = {18},
year = {2010}
}
@article{faucris.287265705,
abstract = {We address the response of a Fabry-Perot interferometer to a monochromatic point source. We calculate the anti -caustics (that is, the virtual wavefronts of null path difference) resulting from the successive internal reflections occurring in the system. They turn out to be a family of ellipsoids (or hyperboloids) of revolution, which allows us to reinterpret the operation of the Fabry-Perot interferometer from a geometrical point of view that facilitates comparison with other apparently disparate arrangements, such as Young's double slit. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement},
author = {Sanchez-Soto, Luis L. and Monzon, Juan J. and Leuchs, Gerd},
doi = {10.1364/JOSAA.472160},
faupublication = {yes},
journal = {Journal of the Optical Society of America A-Optics Image Science and Vision},
note = {CRIS-Team WoS Importer:2023-01-06},
pages = {C74-C78},
peerreviewed = {Yes},
title = {{Anticaustics} in a {Fabry}-{Perot} interferometer},
volume = {39},
year = {2022}
}
@inproceedings{faucris.123433904,
abstract = {A tunable Fabry-Pérot microcavity consisting of a 2.6 μm curvature mirror and 0.4 numerical aperture is fabricated. We study the effect of a nanoparticle on the cavity modes and discuss the coupling of single molecules. © OSA 2015.},
author = {Kelkar, Hrishikesh and Wang, Daqing and Hoffmann, Björn and Christiansen, Silke and Götzinger, Stephan and Sandoghdar, Vahid},
booktitle = {CLEO: QELS - Fundamental Science, CLEO{\_}QELS 2015},
doi = {10.1364/CLEO{\_}QELS.2015.FW1A.4},
faupublication = {no},
isbn = {9781557529688},
peerreviewed = {Yes},
publisher = {Optical Society of America (OSA)},
title = {{An} ultrasmall mode volume cantilever-based {Fabry}-{Pérot} microcavity},
year = {2015}
}
@inproceedings{faucris.200238291,
abstract = {In der DFG-finanzierten Forschergruppe OPTAVER wurden Lichtwellenleiter mittels eines Aerosol-Druck-Verfahrens hergestellt. Eine dadurch ermöglichte Koppelstelle kann jedoch nicht mehr mittels Raytracing simuliert werden, da Interferenzeffekte nicht berücksichtigt werden. Eine Anwendung wellenoptischer Methoden auf die Problemstellung wird im Folgenden untersucht und dargestellt.
2 as the only non-zero Stokes parameter, thus Ŝ1 and Ŝ3 being the conjugate pair. Polarization entanglement was generated by interference of the polarization squeezed field with a vacuum on a 50:50 beamsplitter. The two resultant beams exhibit strong quantum noise correlations in Ŝ1 and Ŝ3. The sum noise signal of Ŝ3 was at the respective shot noise level and the difference noise signal of Ŝ1 fell -2.9 dB below this value.},
author = {Leuchs, Gerd and et al.},
author_hint = {Glöckl Oliver, Heersink Joel, Korolkova Natalia, Leuchs Gerd, Lorenz Stefan},
doi = {10.1088/1464-4266/5/4/355},
faupublication = {yes},
journal = {Journal of Optics B Quantum and Semiclassical Optics},
keywords = {Continuous variables; Entanglement; Nonlinear optics; Polarization},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.apulse},
pages = {492-496},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} pulsed source of continuous variable polarization entanglement},
volume = {55},
year = {2003}
}
@article{faucris.273952835,
abstract = {Astronomical imaging can be broadly classified into two types. The first type is amplitude interferometry, which includes conventional optical telescopes and very large baseline interferometry (VLBI). The second type is intensity interferometry, which relies on Hanbury Brown and Twiss-type measurements. At optical frequencies, where direct phase measurements are impossible, amplitude interferometry has an effective numerical aperture that is limited by the distance from which photons can coherently interfere. Intensity interferometry, on the other hand, correlates only photon fluxes and can thus support much larger numerical apertures, but suffers from a reduced signal due to the low average photon number per mode in thermal light. It has hitherto not been clear which method is superior under realistic conditions. Here, we give a comparative analysis of the performance of amplitude and intensity interferometry, and we relate this to the fundamental resolution limit that can be achieved in any physical measurement. Using the benchmark problem of determining the separation between two distant thermal point sources, e.g., two adjacent stars, we give a short tutorial on optimal estimation theory and apply it to stellar interferometry. We find that for very small angular separations the large baseline achievable in intensity interferometry can more than compensate for the reduced signal strength. We also explore options for practical implementations of very large baseline intensity interferometry (VLBII).},
author = {Bojer, Manuel and Huang, Zixin and Karl, Sebastian and Richter, Stefan and Kok, Pieter and von Zanthier, Joachim},
doi = {10.1088/1367-2630/ac5f30},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team WoS Importer:2022-04-29},
peerreviewed = {Yes},
title = {{A} quantitative comparison of amplitude versus intensity interferometry for astronomy},
volume = {24},
year = {2022}
}
@inproceedings{faucris.121585684,
address = {Sankt Augustin},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Seeger St.},
booktitle = {Proc. of Vision, Modeling and Visualization '99},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1999.nat.dphy.optik.1optik.arobus},
pages = {75-82},
peerreviewed = {No},
publisher = {Infix Verlag},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} {Robust} {Multiresolution} {Registration} {Approach}},
year = {1999}
}
@article{faucris.276454625,
abstract = {The impossibility of perfectly discriminating non-orthogonal quantum states imposes far-reaching consequences both on quantum and classical communication schemes. We propose and numerically analyze an optimized quantum receiver for the discrimination of phase encoded signals. Our scheme outperforms the standard quantum limit and approaches the Helstrom bound for any signal power. The discrimination is performed via an optimized, feedback-mediated displacement prior to a photon counting detector. We provide a detailed analysis of the influence of excess noise and technical imperfections on the average error probability. The results demonstrate the receiver's robustness and show that it can outperform any classical receiver over a wide range of realistic parameters.},
author = {Mueller, C. R. and Marquardt, Christoph},
doi = {10.1088/1367-2630/17/3/032003},
faupublication = {yes},
journal = {New Journal of Physics},
keywords = {Coherent communication; Optical communication; Quantum information processing; Quantum noise; Quantum receiver},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {1-12},
peerreviewed = {Yes},
title = {{A} robust quantum receiver for phase shift keyed signals},
volume = {17},
year = {2015}
}
@article{faucris.120307044,
abstract = {We present free space coherent arrays of continuous-wave terahertz (THz) photomixers and compare the results to on-chip arrays. By altering the relative phases of the exciting laser signals, the relative THz phase between the array elements can be tuned, allowing for beam steering. In addition, the constructive interference of the emission of N elements leads to an increase of the focal intensity by a factor of N2 while reducing the beam width by ∼N-1, below the diffraction limit of a single source. Such array architectures strongly improve the THz power distribution for stand-off spectroscopy and imaging systems while providing a huge bandwidth at the same time. We demonstrate this by beam profiles generated by a 2 × 2 and a 4 × 1 array for a transmission distance of 4.2 m. Spectra between 70 GHz and 1.1 THz have been recorded with these arrays. © 2013 Optical Society of America.},
author = {Bauerschmidt, Sebastian and Döhler, Gottfried and Lu, Hong and Gossard, Art and Malzer, Stefan and Preu, Sascha},
doi = {10.1364/OL.38.003673},
faupublication = {yes},
journal = {Optics Letters},
keywords = {Terahertz emitter array;beam steering},
pages = {3673-3676},
peerreviewed = {Yes},
title = {{Arrayed} free space continuous-wave terahertz photomixers},
volume = {38},
year = {2013}
}
@incollection{faucris.118940184,
abstract = {We report on the progress of room-temperature operating, continuous-wave, tunable n-i-pn-i-p superlattice THz photomixers, compatible with 1.55μm telecom laser systems. An output power of 0.65μW at 1THz has been achieved at a photocurrent of 9.5mA, using a broadband antenna. The spectral power is at a level where high resolution spectroscopy becomes attractive. This is demonstrated by measuring the absorption spectrum of water vapor between 0.4 and 1.6THz. We constructed an array of 4 mutually coherent photomixers for higher output power and spatial resolution. The interference of the four individual beams was measured in the target plane at a stand-off distance of 4.2m. We report on both a small THz spot diameter along the array axis of<1cm for ν>0.3THz and a high intensity of the central interference peak, in excellent agreement with numerical simulations. These features are very attractive for stand-off imaging and spectroscopy. © 2011 Springer Science+Business Media B.V.},
author = {Preu, Sascha and Bauerschmidt, Sebastian and Malzer, Stefan and Döhler, Gottfried and Lu, Hong and Gossard, Art and Wang, Lijun},
booktitle = {Terahertz and Midinfrared Radiation},
doi = {10.1007/978-94-007-0769-6-20},
editor = {Mauro F. Pereira, Oleksiy Shulika},
faupublication = {yes},
isbn = {978-94-007-0768-9},
pages = {139-146},
peerreviewed = {unknown},
publisher = {Springer Verlag},
series = {NATO Science for Peace and Security Series B: Physics and Biophysics},
title = {{Arrayed} telecom-wavelength compatible {THz} n-i-pn-i-p superlattice photomixers for spectroscopy applications},
url = {http://link.springer.com/chapter/10.1007/978-94-007-0769-6{\_}20},
year = {2011}
}
@article{faucris.107761104,
abstract = {Power limitations in CW THz generation imposed by conventional photomixers ("antenna emitters", AEs) are the major drawbacks on THz generation. From the antenna point of view, two different strategies are proposed to increase the generated power: optimized arrays and lenses arrangements and the use of new dielectric horn antennas. Then, using multiple small lenses, one per each single element, instead of a large one, bigger than the array, makes the generated power much higher. In addition, horn antennas etched in the substrate are considered in order to reduce the energy distribution scattering. Finally, some manufacturing issues are discussed. © 2013 Springer Science+Business Media New York.},
author = {Rivera-Lavado, Alejandro and Garcia-Munoz, Enrique and Döhler, Gottfried and Malzer, Stefan and Preu, Sascha and Bauerschmidt, Sebastian and Montero-De-Paz, J. and Ugarte-Munoz, E. and Andres-Garcia, Belen and Izquierdo-Bermudez, V. and Segovia-Vargas, Daniel},
doi = {10.1007/s10762-013-9954-x},
faupublication = {yes},
journal = {Journal of Infrared, Millimeter, and Terahertz Waves},
note = {UnivIS-Import:2015-03-09:Pub.2013.nat.dphy.IAP.LAP.arrays},
pages = {97-108},
peerreviewed = {Yes},
title = {{Arrays} and new antenna topologies for increasing {THz} power generation using photomixers},
volume = {34},
year = {2013}
}
@inproceedings{faucris.124170904,
author = {Rothau, Sergej and Ghadyani, Zahra and Harder, Irina and Lindlein, Norbert},
booktitle = {113. Jahrestagung der DGaO},
faupublication = {yes},
title = {{Artiffcial} wave plates made from subwavelength structures},
venue = {Eindhoven NL},
volume = {113},
year = {2012}
}
@article{faucris.110797764,
abstract = {A technique for testing aspherical surfaces without the use of a null-corrector is described. The wave-front sensor for the detection of the aspherical wave-front is a Shack-Hartmann sensor which has a significantly expanded range of measurable wave-front slopes. The optical testing set-up, the used algorithm for the dynamic range expansion, and experimental results are presented in this paper.},
author = {Lindlein, Norbert and et al.},
author_hint = {Pfund Johannes, Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.aspher},
pages = {254-255},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Aspherical} surface testing by using spherical compensation},
volume = {3749},
year = {1999}
}
@article{faucris.276471117,
abstract = {We propose an operational degree of polarization in terms of the variance of the Stokes vector minimized over all the directions of the Poincaré sphere. We examine the properties of this second-order definition and carry out its experimental determination. Quantum states with the same standard (first-order) degree of polarization are correctly discriminated by this new measure. We argue that a comprehensive quantum characterization of polarization properties requires a whole hierarchy of higher-order degrees. © 2010 The American Physical Society.},
author = {Klimov, A. B. and Bjoerk, G. and Soederholm, J. and Madsen, L. S. and Lassen, M. and Andersen, U. L. and Heersink, J. and Dong, Ruifang and Marquardt, Christoph and Leuchs, Gerd and Sanchez-Soto, L. L.},
doi = {10.1103/PhysRevLett.105.153602},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Assessing} the polarization of a quantum field from stokes fluctuations},
volume = {105},
year = {2010}
}
@inproceedings{faucris.117995064,
address = {Berlin},
author = {Häusler, Gerd and et al.},
author_hint = {Seeger Stephan, Hormann K., Häusler Gerd, Greiner G.},
booktitle = {Proc. of Vision, Modeling and Visulaisation},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.asubat},
pages = {77-85},
peerreviewed = {No},
publisher = {Akademische Verlagsgesellschaft Aka GmbH},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{A} {Sub}-{Atomic} {Subdivision} {Approach}},
venue = {Stuttgart},
year = {2001}
}
@inproceedings{faucris.290284880,
author = {Kelkar, Hrishikesh and Wang, Daqing and Hoffmann, Björn and Christiansen, Silke and Götzinger, Stephan and Sandoghdar, Vahid},
booktitle = {Optics InfoBase Conference Papers},
date = {2015-06-21/2015-06-25},
faupublication = {no},
isbn = {9781467374750},
note = {CRIS-Team Scopus Importer:2023-03-07},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{A} sub-λ3 mode volume cantilever-based {Fabry}-{Pérot} microcavity},
venue = {Munich, DEU},
year = {2014}
}
@article{faucris.255818840,
abstract = {In this work, we exhaustively investigate 1→2 local and nonlocal broadcasting of entanglement as well as correlations beyond entanglement (geometric discord) using asymmetric Pauli cloners with the most general two-qubit state as the resource. We exemplify asymmetric broadcasting of entanglement using "maximally entangled mixed states." We demonstrate the variation of broadcasting range with the amount of entanglement present in the resource state as well as with the asymmetry in the cloner. We show that it is impossible to optimally broadcast geometric discord with the help of these asymmetric Pauli cloning machines. We also study the problem of 1→3 broadcasting of entanglement using nonmaximally entangled state as the resource. For this task, we introduce a method we call successive broadcasting which involves application of 1→2 optimal cloning machines multiple times. We compare and contrast the performance of this method with the application of direct 1→3 optimal cloning machines. We show that 1→3 optimal cloner does a better job at broadcasting than the successive application of 1→2 cloners and the successive method can be beneficial in the absence of 1→3 cloners. We also bring out the fundamental difference between the tasks of cloning and broadcasting in the final part of the paper. We create examples to show that there exist local unitaries which can be employed to give a better range for broadcasting. Such unitary operations are not only economical, but also surpass the best possible range obtained using existing cloning machines enabling broadcasting of lesser entangled states. This result opens up a direction in exploration of methods to facilitate broadcasting which may outperform the standard strategies implemented through cloning transformations.},
author = {Jain, Aditya and Chakrabarty, Ndranil and Chatterjee, Sourav},
doi = {10.1103/PhysRevA.99.022315},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2021-04-20},
peerreviewed = {Yes},
title = {{Asymmetric} broadcasting of quantum correlations},
volume = {99},
year = {2019}
}
@article{faucris.108745824,
abstract = {Microstructured optical fibres (i.e. fibres that contain holes) have assumed a high profile in recent years, and given rise to many novel optical devices. The problem of manufacturing such fibres by heating and then drawing a preform is considered for both the cases of annular microfibres and annular capillaries. A fluid-mechanics model suggested in literature that uses asymptotic analysis based on the small aspect ratio of capillaries is analysed and revised. The leading-order equations are examined in some asymptotic limits, many of which give valuable practical information about the control parameters that influence the drawing process. Additionally, the solution obtained for a single capillary provides a suitable basis for describing more complicated fibre structures. Copyright © 2011 The Berkeley Electronic Press. All rights reserved.},
author = {Luzi, Giovanni and Epple, Philipp and Scharrer, Michael and Fujimoto Meinecke, Ken and Rauh, Cornelia and Delgado, Antonio},
doi = {10.1515/1542-6580.2710},
faupublication = {yes},
journal = {International Journal of Chemical Reactor Engineering},
keywords = {asymptotic analysis; holey fibre; microstructured optical fibres; numerical efforts; photonic crystal fibres},
note = {UnivIS-Import:2015-03-09:Pub.2011.tech.ITC.stmmec.asympt},
pages = {A65},
peerreviewed = {Yes},
title = {{Asymptotic} analysis of flow processes at drawing of single optical microfibres},
url = {http://www.degruyter.com/view/j/ijcre.2011.9.issue-1/1542-6580.2710/1542-6580.2710.xml?format=INT},
volume = {9},
year = {2011}
}
@inproceedings{faucris.120072084,
abstract = {Last year (lecture A28 - 115th DGaO annual meeting), we presented the concept of a compact and modular telecentric line scanning system, capable of measuring large surfaces, e.g. for deformation and scratch detection of aluminium rolled sheets. In this particular construction, a circular scan curve is imaged onto one line. Because of the modular design of the system, this system could be considered in an inline process as well. To be applicable either in macroscopic or microscopic regime, both single components (torus mirror and imaging system) as well as the complete system have to be configured accordingly. Using optical simulation tools, the characteristic parameters of the line scanner can be determined accurately. Due to field curvature and distortion, off-axis beams can distort the image on the detector (line camera) significantly. Therefore, a special interest was paid to the influence of the quality of the image points concerning the enlargement of the field angle and the imaging on the detector plane.},
author = {Loosen, Florian and Lindlein, Norbert and Donner, Klaus},
booktitle = {Proceeding, 116. DGaO-Jahrestagung},
faupublication = {yes},
keywords = {Optisches Design, Optische Systeme, Messtechnik},
publisher = {DGaO},
title = {{A} telecentric line scanning system: requirements in the macroscopic and microscopic regime},
venue = {Brünn},
year = {2015}
}
@article{faucris.121051304,
abstract = {We investigate the properties of an atmospheric channel for free space quantum communication with continuous polarization variables. In our prepare-and-measure setup, coherent polarization states are transmitted through an atmospheric quantum channel of 100 m length on the flat roof of our institute's building. The signal states are measured by homodyne detection with the help of a local oscillator (LO) which propagates in the same spatial mode as the signal, orthogonally polarized to it. Thus the interference of signal and LO is excellent and atmospheric fluctuations are auto-compensated. The LO also acts as a spatial and spectral filter, which allows for unrestrained daylight operation. Important characteristics for our system are atmospheric channel influences that could cause polarization, intensity and position excess noise. Therefore we study these influences in detail. Our results indicate that the channel is suitable for our quantum communication system in most weather condition},
author = {Heim, Bettina and Elser, Dominique Alexander and Bartley, Tim and Sabuncu, Metin and Wittmann, Christoffer and Sych, Denis and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1007/s00340-009-3838-8},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-04-14:Pub.2010.nat.dphy.optik.1optik.atmosp},
pages = {635-640},
peerreviewed = {Yes},
title = {{Atmospheric} channel characteristics for quantum communication with continuous polarization variables},
volume = {98},
year = {2010}
}
@article{faucris.276456619,
abstract = {We present a quantum communication experiment conducted over a point-to-point free-space link of 1.6 km in urban conditions. We study atmospheric influences on the capability of the link to act as a continuous-variable (CV) quantum channel. Continuous polarization states (that contain the signal encoding as well as a local oscillator (LO) in the same spatial mode) are prepared and sent over the link in a polarization multiplexed setting. Both signal and LO undergo the same atmospheric fluctuations. These are intrinsically auto-compensated which removes detrimental influences on the interferometric visibility. At the receiver, we measure the Q-function and interpret the data using the framework of effective entanglement (EE). We compare different state amplitudes and alphabets (two-state and four-state) and determine their optimal working points with respect to the distributed EE. Based on the high entanglement transmission rates achieved, our system indicates the high potential of atmospheric links in the field of CV quantum key distribution.},
author = {Heim, B. and Peuntinger, Christian and Killoran, N. and Khan, Imran and Wittmann, C. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1088/1367-2630/16/11/113018},
faupublication = {yes},
journal = {New Journal of Physics},
keywords = {atmospheric turbulence; polarization in atmospheric optics; quantum communication},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Atmospheric} continuous-variable quantum communication},
volume = {16},
year = {2014}
}
@article{faucris.276456118,
abstract = {We demonstrate high atomic mercury vapor pressure in a kagomé-style hollow-core photonic crystal fiber at room temperature. After a few days of exposure to mercury vapor the fiber is homogeneously filled and the optical depth achieved remains constant. With incoherent optical pumping from the ground state we achieve an optical depth of 114 at the 63P2 - 63D3 transition, corresponding to an atomic mercury number density of 6 × 1010cm-3. The use of mercury vapor in quasi one-dimensional confinement may be advantageous compared to chemically more active alkali vapor, while offering strong optical nonlinearities in the ultraviolet region of the optical spectrum.},
author = {Vogl, Ulrich and Peuntinger, Christian and Joly, Nicolas Y. and Russell, Philip St. J. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OE.22.029375},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {29375-29381},
peerreviewed = {Yes},
title = {{Atomic} mercury vapor inside a hollow-core photonic crystal fiber},
volume = {22},
year = {2014}
}
@article{faucris.260824723,
abstract = {With the emergence of an information society, the idea of protecting sensitive data is steadily gaining importance. Conventional encryption methods may not be sufficient to guarantee data protection in the future. Quantum key distribution (QKD) is an emerging technology that exploits fundamental physical properties to guarantee perfect security in theory. However, it is not easy to ensure in practice that the implementations of QKD systems are exactly in line with the theoretical specifications. Such theory–practice deviations can open loopholes and compromise security. Several such loopholes have been discovered and investigated in the last decade. These activities have motivated the proposal and implementation of appropriate countermeasures, thereby preventing future attacks and enhancing the practical security of QKD. This article introduces the so-called field of quantum hacking by summarising a variety of attacks and their prevention mechanisms.},
author = {Jain, Nitin and Stiller, Birgit and Khan, Imran and Elser, Dominique Alexander and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1080/00107514.2016.1148333},
faupublication = {yes},
journal = {Contemporary Physics},
keywords = {countermeasures; practical data security; quantum computer; Quantum cryptography; quantum hacking; quantum key distribution},
note = {CRIS-Team Scopus Importer:2021-06-29},
pages = {366-387},
peerreviewed = {Yes},
title = {{Attacks} on practical quantum key distribution systems (and how to prevent them)},
volume = {57},
year = {2016}
}
@inproceedings{faucris.117875604,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Laboureux Xavier, Häusler Gerd, Karbacher St., Schönfeld H.},
booktitle = {Optische 3D-Formerfassung},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1998.nat.dphy.optik.1optik.aufber},
pages = {?},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Aufbereitung} von {3D}-{Sensordaten} für {Reverse} {Engineering} mit {Slim3D}},
venue = {Ostfildern},
year = {1998}
}
@inproceedings{faucris.121846824,
address = {Singapore},
author = {Nkenke, Emeka and Neukam, Friedrich Wilhelm and Häusler, Gerd and et al.},
author_hint = {Maier Tobias, Benz Michaela, Schön Nikolaus, Nkenke Emeka, Neukam Friedrich Wilhelm, Vogt F., Häusler Gerd},
booktitle = {Perspective in Image-Guided Surgery, Proceedings of the Scientific Workshop on Medical Robotics, Navigation and Visualizatiom},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2004.nat.dphy.optik.1optik.autima},
pages = {51-58},
peerreviewed = {No},
publisher = {Verlag World Scientific},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Automatic} {Coarse} {Registration} of {3D} {Surface} {Data} in {Oral} and {Maxillofacial} {Surgery}},
year = {2004}
}
@article{faucris.121072204,
abstract = {Multisensor systems with optical 3D sensors are frequently employed to capture complete surface information by measuring workpieces from different views. During coarse and fine registration the resulting datasets are afterward transformed into one common coordinate system. Automatic fine registration methods are well established in dimensional metrology, whereas there is a deficit in automatic coarse registration methods. The advantage of a fully automatic registration procedure is twofold: it enables a fast and contact-free alignment and further a flexible application to datasets of any kind of optical 3D sensor. In this paper, an algorithm adapted for a robust automatic coarse registration is presented. The method was originally developed for the field of object reconstruction or localization. It is based on a segmentation of planes in the datasets to calculate the transformation parameters. The rotation is defined by the normals of three corresponding segmented planes of two overlapping datasets, while the translation is calculated via the intersection point of the segmented planes. First results have shown that the translation is strongly shape dependent: 3D data of objects with non-orthogonal planar flanks cannot be registered with the current method. In the novel supplement for the algorithm, the translation is additionally calculated via the distance between centroids of corresponding segmented planes, which results in more than one option for the transformation. A newly introduced measure considering the distance between the datasets after coarse registration evaluates the best possible transformation. Results of the robust automatic registration method are presented on the example of datasets taken from a cutting tool with a fringe-projection system and a focus-variation system. The successful application in dimensional metrology is proven with evaluations of shape parameters based on the registered datasets of a calibrated workpiece. © 2013 IOP Publishing Ltd.},
author = {Shaw, Laura and Ettl, Svenja and Mehari, Fanuel and Weckenmann, Albert and Häusler, Gerd},
doi = {10.1088/0957-0233/24/4/045002},
faupublication = {yes},
journal = {Measurement Science & Technology},
keywords = {automatic registration; cutting tools; three-dimensional metrology},
note = {UnivIS-Import:2015-04-14:Pub.2013.tech.FT.FT-QMFMT.automa},
pages = {045002 (8pp)},
peerreviewed = {Yes},
title = {{Automatic} registration method for multisensor datasets adopted for dimensional measurements on cutting tools},
volume = {24},
year = {2013}
}
@misc{faucris.120958464,
author = {Häusler, Gerd and et al.},
author_hint = {Oeckl Steven, Häusler Gerd, T. Wenzel},
faupublication = {yes},
note = {UnivIS-Import:2015-04-14:Pub.2001.forsch.gradui.gradui{\_}6.automa},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Automatische} {Porenfindung} in {3D}-{CT} {Daten}},
year = {2001}
}
@article{faucris.121038544,
author = {Häusler, Gerd and Wittenberg, Thomas and Nkenke, Emeka and Ettl, Svenja and et al.},
author_hint = {Göb S., Maier Tobias, Benz Michaela, Ettl Svenja, Wittenberg Thomas, Kullmann W., Nkenke Emeka, Neukam F.W., Häusler Gerd},
faupublication = {yes},
journal = {Informatik aktuell},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.automa},
pages = {-},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Automatische} {Segmentierung} der {Gewebegrenzen} in {2D}-{Ultraschalldaten} aus der {Mund}-{Kiefer}- und {Gesichtschirurgie}},
year = {2006}
}
@article{faucris.120402524,
abstract = {Intensified charge coupled device (ICCD) cameras are widely used in various applications such as microscopy, astronomy, spectroscopy. Often they are used as single-photon detectors, with thresholding being an essential part of the readout. In this paper, we measure the quantum efficiency of an ICCD camera in the single-photon detection mode using the Klyshko absolute calibration technique. The quantum efficiency is obtained as a function of the threshold value and of the wavelength of the detected light. In addition, we study the homogeneity of the photon sensitivity over the camera chip area. The experiment is performed in the autonomous regime, without using any additional detectors. We therefore demonstrate the self-calibration of an ICCD camera.},
author = {Qi, Luo and Just, Felix and Leuchs, Gerd and Chekhova, Maria V.},
doi = {10.1364/OE.24.026444},
faupublication = {yes},
journal = {Optics Express},
pages = {26444-26453},
peerreviewed = {Yes},
title = {{Autonomous} absolute calibration of an {ICCD} camera in single-photon detection regime},
volume = {24},
year = {2016}
}
@article{faucris.276461776,
abstract = {The generation of high-quality single-photon states with controllable narrow spectral bandwidths and central frequencies is key to facilitate efficient coupling of any atomic system to non-classical light fields. Such an interaction is essential in numerous experiments for fundamental science and applications in quantum communication and information processing, as well as in quantum metrology. Here we implement a fully tunable, narrow-band and efficient single-photon source based on a whispering gallery mode resonator. Our disk-shaped, monolithic and intrinsically stable resonator is made of lithium niobate and supports a cavity-assisted spontaneous parametric down-conversion process. The generated photon pairs are emitted into two highly tunable resonator modes. We verify wavelength tuning over 100 nm of both modes with controllable bandwidth between 7.2 and 13 MHz. Heralding of single photons yields anti-bunching with g (2) (0)<0.2. © 2013 Macmillan Publishers Limited. All rights reserved.},
author = {Förtsch, Michael and Fürst, Josef and Wittmann, Christoffer and Strekalov, Dmitry and Aiello, Andrea and Chekhova, Maria V. and Leuchs, Gerd and Silberhorn, Christine and Marquardt, Christoph},
doi = {10.1038/ncomms2838},
faupublication = {yes},
journal = {Nature Communications},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{A} versatile source of single photons for quantum information processing},
volume = {4},
year = {2013}
}
@article{faucris.110572264,
abstract = {The principle and the alignment aberration functions are described for an axicon-type test interferometer for measuring cylindrical mantle surfaces. Additionally, we show that the derived systematic alignment functions fulfill for reasonably small misalignments the requirements for measurements in the range of approximately 1/100 of a fringe. We verify this with optical path-length calculations, using ray tracing. © 1997 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Schreiner Roland, Brinkmann Sören, Dresel T., Schwider Johannes},
faupublication = {yes},
journal = {Applied Optics},
keywords = {Alignment aberration functions; Axicon-type test interferometer; Cylinder test; Ray tracing},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.axicon},
pages = {2791-2795},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Axicon}-type test interferometer for cylindrical surfaces: systematic error assessment},
volume = {36},
year = {1997}
}
@inproceedings{faucris.120053384,
author = {Romanov, Sergei G. and Orlov, Sergej and Vogel, Nicolas and Bley, Karina and Landfester, Katharina and Weiss, Clemens K. and Peschel, Ulf},
booktitle = {Photonic Crystal Materials and Devices XI},
doi = {10.1117/12.2051220},
faupublication = {yes},
isbn = {9781628410754},
keywords = {2-dimensional slab photonic crystal; Diffraction; Disorder; Etching; Mie resonance; Optical spectra; Photon hopping},
peerreviewed = {Yes},
publisher = {SPIE},
title = {{Balancing} ballistic and hopping light transport by purposive arraying of colloidal particles},
venue = {Brussels},
volume = {9127},
year = {2014}
}
@inproceedings{faucris.225508295,
abstract = {
In der DFG-finanzierten Forschergruppe OPTAVER (Optische Aufbau- und
Verbindungstechnik für baugruppenintegrierte Bussysteme) wurden erfolgreich
Lichtwellenleiter mittels eines Aerosol-Druck-Verfahrens mit vorheriger
Konditionierung hergestellt sowie ein virtuelles Abbild der gesamten
Prozesskette erstellt. Dieses Verfahren ermöglicht nahezu beliebige Druckpfade,
sodass dies den Weg frei macht für neue Realisationen von optischen
Buskopplungen.Ein nun möglicher Druckpfad ist jedoch nicht zwangsweise eine Verbesserung in Bezug auf die
optischen Eigenschaften des Lichtwellenleiters. Die besondere Geometrie des
Querschnitts der Polymer Optischen Wellenleiter (POW) beeinflusst das Design
des Druckpfades. Ein Beispiel dafür ist der minimale Radius, den eine Kurve
haben darf, damit kein Licht aus dem Wellenleiter auskoppelt. Um nun
Vorschriften für das Druckpfad-Design ableiten zu können, benötigt es einer
Charakterisierung der POWs bezüglich verschiedenster Druckpfade. Diese
Charakterisierung wird vorgestellt und die daraus abgeleiteten Druckpfad-Design
Vorschriften aufgezeigt. Des Weiteren werden neue Realisierungsmöglichkeiten von optischen Buskopplungen vorgestellt},
author = {Backhaus, Carsten and Lindlein, Norbert and Zeitler, Jochen Tobias and Franke, Jörg},
booktitle = {DGaO Proceedings},
date = {2019-06-11/2019-06-15},
faupublication = {yes},
keywords = {Additive Fertigung; Polymer Optische Wellenleiter; optische Eigenschaften;},
peerreviewed = {unknown},
title = {{Beeinflussung} der optischen {Eigenschaften} von {Polymer} {Optischen} {Wellenleitern} durch das {Druckpfad}-{Design}},
url = {https://www.dgao-proceedings.de/},
venue = {Darmstadt},
year = {2019}
}
@inproceedings{faucris.121528924,
abstract = {The European Network of Excellence on Micro-Optics (NEMO) is a consortium of about 30 European institutes and companies which are working on micro-optics. The network is supported by the European Commission for a period of four years. One of its work packages is the Centre for Modelling and Design consisting of about 20 partners. In this work package a benchmark of the capabilities of commercial and internal software tools which are available among the partners will be made. The ten test systems which are used for the benchmarking range from seemingly simple things like calculating the intensity distribution in the focus of a microlens to complete systems like for example an optical interconnect system with microlenses, DOEs and a prism. The paper will present some of the benchmark systems. First results of the benchmarking itself cannot be presented in this proceeding because the benchmarking just ends at the end of August (after the deadline of this proceeding). But, hopefully first results can be presented during the talk.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein N., Wyrowski F.},
booktitle = {Optical Design and Engineering II},
doi = {10.1117/12.614037},
editor = {Mazuray L.; Watmann R.},
faupublication = {yes},
keywords = {Benchmarking; Micro-optics; Optical design tools; Ray tracing; Simulation; Wave-optical simulation},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Benchmark} for optical simulation tools in the european network of excellence on micro-optics {NEMO}},
venue = {Gena},
volume = {5962},
year = {2005}
}
@inproceedings{faucris.217946349,
abstract = {Optical satellite links open up new prospects for realizing quantum physical experiments over unprecedented length scales. We demonstrate the feasibility of quadrature squeezing detection in satellite links using optical communication technology already in orbit. The detection process is complicated by the fact that the homo dyne detectors aboard of satellites often provide an efficient resolution of only one bit. We show experimentally, that despite this extremal constraint quantum squeezing can still be detected efficiently. The required sample overhead compared to an ideal homo dyne detector is only a factor of 3.3.},
author = {Müller, Christian R. and Seshadreesan, Kaushik P. and Peuntinger, Christian and Marquardt, Christoph},
booktitle = {2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018},
date = {2018-07-29/2018-08-03},
faupublication = {yes},
isbn = {9781943580453},
note = {CRIS-Team Scopus Importer:2019-05-21},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Binary} {Homodyne} {Detection} for {Observing} {Quadrature} {Squeezing} in {Satellite} {Links}},
venue = {Wanchai, HKG},
year = {2019}
}
@article{faucris.248099250,
abstract = {Optical satellite links open up new prospects for realizing quantum physical experiments over unprecedented length scales. We analyze and affirm the feasibility of detecting quantum squeezing in an optical mode with homodyne detection of only one bit resolution, as is found in satellites already in orbit. We show experimentally that, in combination with a coherent displacement, a binary homodyne detector can still detect quantum squeezing efficiently even under high loss. The sample overhead in comparison to nondiscretized homodyne detection is merely a factor of 3.3.},
author = {Müller, Christian and Seshadreesan, Kaushik P. and Peuntinger, Christian and Marquardt, Christoph},
doi = {10.1103/PhysRevResearch.2.033523},
faupublication = {yes},
journal = {Physical Review Research},
note = {CRIS-Team WoS Importer:2021-01-22},
peerreviewed = {Yes},
title = {{Binary} homodyne detection for observing quadrature squeezing in satellite links},
url = {https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.033523},
volume = {2},
year = {2020}
}
@article{faucris.276469893,
abstract = {We demonstrate experimentally and theoretically that a nanoscale hollow channel placed centrally in the solidglass core of a photonic crystal fiber strongly enhances the cylindrical birefringence (the modal index difference between radially and azimuthally polarized modes). Furthermore, it causes a large split in group velocity and group velocity dispersion. We show analytically that all three parameters can be varied over a wide range by tuning the diameters of the nanobore and the core.© 2010 Optical Society of America.},
author = {Euser, T. G. and Schmidt, M. A. and Joly, N. Y. and Gabriel, C. and Marquardt, Christoph and Zang, L. Y. and Foertsch, M. and Banzer, Peter and Brenn, A. and Elser, Dominique and Scharrer, Michael G and Leuchs, Gerd and Russell, P. St J.},
doi = {10.1364/JOSAB.28.000193},
faupublication = {yes},
journal = {Journal of the Optical Society of America B-Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {193-198},
peerreviewed = {Yes},
title = {{Birefringence} and dispersion of cylindrically polarized modes in nanobore photonic crystal fiber},
volume = {28},
year = {2011}
}
@article{faucris.248103724,
abstract = {Three identical two-level atoms in free space prepared in particular entangled single-photon excited states display a "birth," "death," and a nonperiodic "revival" of spontaneous emission in selected directions. Instead of recording the spontaneously emitted photon with a maximum probability at t = 0 as for a single atom, a "birth" manifests itself in an initially zero photon detection probability, increasing thereafter in particular directions. Alternatively, the photon detection probability decreases in particular directions from an initially maximal value to completely disappear ("death") and to reappear again ("revival"). We show how these phenomena can be induced in the fully excited system, by projecting the atomic ensemble into the required entangled single-photon excited state via detection of the first two spontaneously emitted photons. To observe death and revival of spontaneous emission it is necessary to provide both spatial and temporal interference for which a minimum of three atoms is required. Hereby, the third atom, located at a large distance with respect to the other two atoms, can be used to tune the time and direction of the death of the photon. From this manipulation of spontaneous decay at a distance, we anticipate multiple applications, in fundamental science as well as in quantum technologies.},
author = {Mährlein, Simon and Götzendörfer, Lukas and Günthner, Kevin and Evers, Jorg and von Zanthier, Joachim},
doi = {10.1103/PhysRevResearch.2.013278},
faupublication = {yes},
journal = {Physical Review Research},
note = {CRIS-Team WoS Importer:2021-01-22},
peerreviewed = {Yes},
title = {{Birth}, death, and revival of spontaneous emission in a three-atom system},
volume = {2},
year = {2020}
}
@article{faucris.290266772,
abstract = {Cement lines are known as thin peripheral boundaries of the osteons. With a thickness below 5 μm their composition of inorganic and organic compounds has been a matter of debate. Here, we hypothesized that cement lines become hypermineralized and their degree of mineralization is not constant but related to the tissue age of the osteon. Therefore, we analyzed the calcium content of osteons and their corresponding cement lines in a range of different tissue ages reflected by osteonal mineralization levels in femoral cortical bone of both postmenopausal women with osteoporosis and bisphosphonate-treated cases. Quantitative backscattered electron imaging (qBEI) showed that cement lines are hypermineralized entities with consistently higher calcium content than their corresponding osteons (mean calcium content: 29.46 ± 0.80 vs. 26.62 ± 1.11 wt%; p < 0.001). Micro-Raman spectroscopy complemented the qBEI data by showing a significantly higher phosphate/amide I ratio in the cement lines compared to the osteonal bone (8.78 ± 0.66 vs. 6.33 ± 0.58, p < 0.001), which was both due to an increased phosphate peak and a reduced amide I peak in cement lines. A clear positive correlation of cement line mineralization and the mineralization of the osteon was observed (r = 0.839, p = 0.003). However, the magnitude of the difference between cement line and osteonal calcium content decreased with increased osteonal calcium content (r = −0.709, p < 0.001), suggesting diverging mineralization dynamics in these osseous entities. The number of mineralized osteocyte lacunae per osteon bone area correlated positively with both osteonal and cement line calcium content (p < 0.01). The degree of mineralization of cement lines may represent another tissue-age related phenomenon, given that it strongly relates to the osteonal mineralization level. Understanding of the cement lines' mineralization and their changes in aging and disease states is important for predicting crack propagation pathways and fracture resistance mechanisms in human cortical bone.},
author = {Milovanovic, Petar and Vom Scheidt, Annika and Mletzko, Kathrin and Sarau, George and Pueschel, Klaus and Djuric, Marija and Amling, Michael and Christiansen, Silke and Busse, Bjoern},
doi = {10.1016/j.bone.2018.02.004},
faupublication = {yes},
journal = {Bone},
keywords = {Cement line; Mineralization; Mineralized osteocyte lacunae; Osteon; Osteoporosis},
note = {CRIS-Team Scopus Importer:2023-03-07},
pages = {187-193},
peerreviewed = {Yes},
title = {{Bone} tissue aging affects mineralization of cement lines},
volume = {110},
year = {2018}
}
@article{faucris.242703516,
abstract = {Optical fiber modes carrying orbital angular momentum (OAM) have many applications, for example in mode-division-multiplexing for optical communications. The natural guided modes of N-fold rotationally symmetric optical fibers, such as most photonic crystal fibers, are helical Bloch modes (HBMs). HBMs consist of a superposition of azimuthal harmonics (order m) of order \ell {\rm{A}}{(m)} = \ell {\rm{A}}{(0)} + mN. When such fibers are twisted, these modes become circularly and azimuthally birefringent, that is to say HBMs with equal and opposite values of \ell {\rm{A}}{(0)} and spin s are non-degenerate. In this article we report the use of Bragg mirrors to reflect and convert HBMs in a twisted three-core photonic crystal fiber, and show that by writing a tilted fiber Bragg grating (FBG), reflection between HBMs of different orders becomes possible, with high wavelength-selectivity. We measure the near-field phase and amplitude distribution of the reflected HBMs interferometrically, and demonstrate good agreement with theory. This new type of FBG has potential applications in fiber lasers, sensing, quantum optics, and in any situation where creation, conversion, and reflection of OAM-carrying modes is required.},
author = {Loranger, Sebastien and Chen, Yang and Roth, Paul and Frosz, Michael H. and Wong, Gordon K. L. and Russell, Philip St. John},
doi = {10.1109/JLT.2020.2984464},
faupublication = {yes},
journal = {Journal of Lightwave Technology},
keywords = {Fiber bragg gratings; helical bloch modes; orbital angular momentum; twisted fiber},
note = {CRIS-Team Scopus Importer:2020-09-18},
pages = {4100-4107},
peerreviewed = {Yes},
title = {{Bragg} reflection and conversion between helical bloch modes in chiral three-core photonic crystal fiber},
volume = {38},
year = {2020}
}
@inproceedings{faucris.255812271,
abstract = {Fiber Bragg gratings are written for the first time into a three-fold rotationally symmetric twisted fiber with three cores, and the reflection of helical Bloch modes explored as the wavelength is tuned.},
author = {Loranger, Sébastien and Chen, Yang and Roth, Paul and Frosz, Michael H. and Ahmed, Goran and Wong, Gordon K.L. and Russell, Philip St. John},
booktitle = {Frontiers in Optics - Proceedings Frontiers in Optics + Laser Science APS/DLS},
date = {2019-09-15/2019-09-19},
doi = {10.1364/FIO.2019.FW1F.2},
faupublication = {yes},
isbn = {9781943580675},
note = {CRIS-Team Scopus Importer:2021-04-20},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Bragg} reflection and conversion between helical {Bloch} modes in twisted three-core optical fiber},
venue = {Washington, DC},
year = {2019}
}
@incollection{faucris.118917304,
address = {Dordrecht},
author = {Leuchs, Gerd and et al.},
author_hint = {Silberhorn Ch., Lam P. K., Korolkova Natalia, Leuchs Gerd},
booktitle = {Quantum Communication, Measurement and Computing 3},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2001.nat.dphy.optik.1optik.bright},
pages = {443-448},
peerreviewed = {Yes},
publisher = {Kluwer Academic Publishers},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Bright} {EPR}-entangled beams for quantum communication},
year = {2001}
}
@article{faucris.213301494,
abstract = {We report a novel technique for launching broadband laser light into liquid-filled hollow-core photonic crystal fiber (HC-PCF). It uniquely offers self-alignment and self-stabilization via optomechanical trapping of a fused silica nanospike, fabricated by thermally tapering and chemically etching a single mode fiber into a tip diameter of 350 nm. We show that a trapping laser, delivering $∼$300 mW at 1064 nm, can be used to optically align and stably maintain the nanospike at the core center. Once this is done, a weak broadband supercontinuum signal ($∼$575--1064 nm) can be efficiently and close to achromatically launched in the HC-PCF. The system is robust against liquid-flow in either direction inside the HC-PCF, and the Fresnel back-reflections are reduced to negligible levels compared to free-space launching or butt-coupling. The results are of potential relevance for any application where the efficient delivery of broadband light into liquid-core waveguides is desired.},
author = {Zeltner, Richard and Xie, Shangran and Pennetta, Riccardo and Russell, Philip St. John},
doi = {10.1021/acsphotonics.6b00868},
faupublication = {yes},
journal = {ACS Photonics},
note = {EAM Import::2019-03-13},
pages = {378-383},
peerreviewed = {Yes},
title = {{Broadband}, {Lensless}, and {Optomechanically} {Stabilized} {Coupling} into {Microfluidic} {Hollow}-{Core} {Photonic} {Crystal} {Fiber} {Using} {Glass} {Nanospike}},
volume = {4},
year = {2017}
}
@article{faucris.255351571,
abstract = {Broadband mid-infrared (IR) supercontinuum laser sources are essential for spectroscopy in the molecular fingerprint region. Here, we report generation of octave-spanning and coherent mid-IR supercontinua in As2S3-silica nanospike hybrid waveguides pumped by a custom-built 2.8 μm femtosecond fiber laser. The waveguides are formed by pressure-assisted melt-filling of molten As2S3 into silica capillaries, allowing the dispersion and nonlinearity to be precisely tailored. Continuous coherent spectra spanning from 1.1 μm to 4.8 μm (30 dB level) are observed when the waveguide is designed so that 2.8 μm lies in the anomalous dispersion regime. Moreover, linearly tapered millimeter-scale As2S3-silica waveguides are fabricated and investigated for the first time, to the best of our knowledge, showing much broader supercontinua than uniform waveguides, with improved spectral coherence. The waveguides are demonstrated to be long-term stable and water-resistant due to the shielding of the As2S3 by the fused silica sheath. They offer an alternative route to generating broadband mid-IR supercontinua, with applications in frequency metrology and molecular spectroscopy, especially in humid and aqueous environments.},
author = {Wang, Pan and Huang, Jiapeng and Xie, Shangran and Troles, Johann and Russell, Philip St. John},
doi = {10.1364/PRJ.415339},
faupublication = {yes},
journal = {Photonics Research},
note = {CRIS-Team Scopus Importer:2021-04-16},
pages = {630-636},
peerreviewed = {Yes},
title = {{Broadband} mid-infrared supercontinuum generation in dispersion-engineered {As2S3}-silica nanospike waveguides pumped by 2.8 μm femtosecond laser},
volume = {9},
year = {2021}
}
@article{faucris.213302415,
abstract = {Broadband, omnidirectional, and polarization-independent diversion has been achieved of more than 90% of the light flow intensity off its incidence direction using hybrid metal--dielectric plasmonic-photonic heterocrystals. These architectures were prepared by depositing metal film on the interface between two photonic crystals of different parameters. The magnitude of light losses was extracted from angle-resolved measurements of transmission and reflectance spectra. Comparing these data for different stages of constructing the complex architecture, the diffraction in colloidal crystals, the excitation and radiative decay of short-living surface plasmon polaritons in a corrugated metal film and the eigenmode mismatch at the interface between two different photonic crystals were identified as corroborating physical mechanisms behind the light diversion.},
author = {Ding, Boyang and Bardosova, Maria and Pemble, Martyn E. and Korovin, Alexander V. and Peschel, Ulf and Romanov, Sergei G.},
doi = {10.1002/adfm.201100695},
faupublication = {yes},
journal = {Advanced Functional Materials},
note = {EAM Import::2019-03-13},
pages = {4182-4192},
peerreviewed = {Yes},
title = {{Broadband} {Omnidirectional} {Diversion} of {Light} in {Hybrid} {Plasmonic}-{Photonic} {Heterocrystals}},
volume = {21},
year = {2011}
}
@article{faucris.120874644,
author = {Häusler, Gerd and et al.},
author_hint = {Mittler K., Lorenz D., Menzel R., Ettl Peter, Bohn G., Häusler Gerd},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.broadb},
pages = {?},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Broadband} {Operation} of a {Gain} {Switched} {TI}:{Sapphire} {Laser} for {Coherence} {Radar} {Measurements}},
volume = {3613},
year = {1999}
}
@inproceedings{faucris.213302074,
abstract = {An optomechanically self-aligned glass nanospike, fashioned from tapered single-mode fiber, is used to launch broadband light into liquid-filled hollow-core PCF. Stable, efficient and close to achromatic coupling is obtained over a 500 nm bandwidth.},
author = {Zeltner, Richard and Xie, Shangran and Pennetta, Riccardo and Russell, Philip St. John},
booktitle = {Optical Trapping Applications 2017},
date = {2017-04-02/2017-04-05},
doi = {10.1364/OTA.2017.OtW4D.2},
faupublication = {yes},
isbn = {978-1-943580-25-5},
note = {EAM Import::2019-03-13},
peerreviewed = {unknown},
title = {{Broadband} {Optomechanically} {Stabilized} {Coupling} to {Liquid}-{Filled} {Hollow}-{Core} {Fiber} {Using} {Silica} {Nanospike}},
venue = {San Diego, CA},
year = {2017}
}
@article{faucris.255664394,
abstract = {In this work, we extensively study the problem of broadcasting of entanglement as state-dependent versus state-independent cloners. We start by re-conceptualizing the idea of state-dependent quantum cloning machine (SD-QCM), and in that process, we introduce different types of SD-QCMs, namely orthogonal and non-orthogonal cloners. We derive the conditions for which the fidelity of these cloners will become independent of the input state. We note that such a construction allows us to maximize the cloning fidelity at the cost of having partial information of the input state. In the discussion on broadcasting of entanglement, we start with a general two-qubit state as our resource and later we consider a specific example of Bell diagonal state. We apply both state-dependent and state-independent cloners (orthogonal and non-orthogonal), locally and non-locally, on input resource state and obtain a range for broadcasting of entanglement in terms of the input state parameters. Our results highlight several instances where the state-dependent cloners outperform their state-independent counterparts in broadcasting entanglement. Our study provides a comparative perspective on the broadcasting of entanglement via cloning in two-qubit scenario, when we have some knowledge of the resource ensemble versus a situation when we have no such information.},
author = {Shukla, Manish Kumar and Chakrabarty, Indranil and Chatterjee, Sourav},
doi = {10.1007/s11128-019-2500-6},
faupublication = {yes},
journal = {Quantum Information Processing},
keywords = {Broadcasting; Cloning; Entanglement},
month = {Jan},
note = {CRIS-Team Scopus Importer:2021-04-19},
peerreviewed = {Yes},
title = {{Broadcasting} of entanglement via orthogonal and non-orthogonal state-dependent cloners},
volume = {19},
year = {2020}
}
@article{faucris.255809859,
abstract = {Quantum mechanical properties like entanglement, discord, and coherence act as fundamental resources in various quantum information processing tasks. Consequently, the technique of generating more resources from a few, typically termed as broadcasting, serves as a promising candidate for the design of quantum networks. One way to broadcast resources could be using a cloning operation. In this article, broadcasting of quantum resources beyond 2 - 2 systems is investigated. In particular, in 2 - 3 dimensions, a class of states not useful for broadcasting of entanglement is characterized considering an optimal universal Heisenberg cloning machine. The broadcasting ranges for maximally entangled mixed states and two-parameter class of states are obtained to exemplify our protocol. A significant derivative of our protocol is that the cloning operation generates a qutrit (3 - 3) entangled pair with positive partial transpose on one of the local sides, and an absolutely separable qubit (2 - 2) pair on the other side of the input bipartite 2 - 3-dimensional resource state. Moving beyond entanglement, in 2 - d dimensions, the impossibility to optimally broadcast quantum discord and quantum coherence (l1 norm) is established. However, some significant illustrations are provided to highlight that nonoptimal broadcasting of discord and coherence is still possible.},
author = {Mundra, Rounak and Patel, Dhrumil and Chakrabarty, Indranil and Ganguly, Nirman and Chatterjee, Sourav},
doi = {10.1103/PhysRevA.100.042319},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2021-04-20},
peerreviewed = {Yes},
title = {{Broadcasting} of quantum correlations in qubit-qudit systems},
volume = {100},
year = {2019}
}
@article{faucris.248373818,
abstract = {For a squeezing-enhanced linear (so-called SU(2)) interferometer, we theoretically investigate the possibility to broaden the phase range of sub-shot-noise sensitivity. We show that this goal can be achieved by implementing detection in both output ports, with the optimal combination of the detectors outputs. With this modification, the interferometer has the phase sensitivity independent of the interferometer operation point and, similar to the standard dark port regime, is not affected by the laser technical (excess) noise. Provided that each detector is preceded by a phase-sensitive amplifier, this sensitivity could be also tolerant to the detection loss.},
author = {Shukla, Gaurav and Salykina, Dariya and Frascella, Gaetano and Mishra, Devendra Kumar and Chekhova, Maria and Khalili, Farit Ya},
doi = {10.1364/OE.413391},
faupublication = {yes},
journal = {Optics Express},
month = {Jan},
note = {CRIS-Team Scopus Importer:2021-01-29},
pages = {95-104},
peerreviewed = {Yes},
title = {{Broadening} the high sensitivity range of squeezing-assisted interferometers by means of two-channel detection},
volume = {29},
year = {2021}
}
@article{faucris.247780039,
abstract = {Nowadays fiber biphoton sources are nearly as popular as crystal-based ones. They offer a single spatial mode and easy integrability into optical networks. However, fiber sources lack the broad tunability of crystals, which do not require a tunable pump. Here, we report a broadly tunable biphoton source based on a suspended core fiber. This is achieved by introducing pressurized gas into the fibers hollow channels, changing the step index. The mechanism circumvents the need for a tunable pump laser, making this a broadly tunable fiber biphoton source with a convenient tuning mechanism, comparable to crystals. We report a continuous shift of 0.30 THz/bar of the sidebands, using up to 25 bar of argon.},
author = {Hammer, Jonas and Chekhova, Maria and Häupl, Daniel and Pennetta, Riccardo and Joly, Nicolas},
doi = {10.1103/PhysRevResearch.2.012079},
faupublication = {yes},
journal = {Physical Review Research},
note = {CRIS-Team WoS Importer:2021-01-15},
peerreviewed = {Yes},
title = {{Broadly} tunable photon-pair generation in a suspended-core fiber},
volume = {2},
year = {2020}
}
@inproceedings{faucris.290124332,
address = {Munich, Germany},
author = {Eichler, Christopher},
booktitle = {MQV Colloquium},
date = {2022-12-08},
faupublication = {yes},
keywords = {wwwquantum},
peerreviewed = {unknown},
title = {{Building} and {Controlling} {Superconducting} {Quantum} {Hardware} towards {Error}-{Corrected} {Quantum} {Computing}},
url = {https://indico.munich-quantum-valley.de/event/11/},
venue = {Munich, Germany},
year = {2022}
}
@inproceedings{faucris.290124081,
address = {Las Vegas, United States},
author = {Eichler, Christopher},
booktitle = {APS March Meeting: Quantum Computing Hardware},
date = {2023-03-08},
faupublication = {yes},
keywords = {wwwquantum},
peerreviewed = {unknown},
title = {{Building} {Superconducting} {Quantum} {Hardware} towards {Error}-{Corrected} {Quantum} {Computing}},
url = {https://meetings.aps.org/Meeting/MAR23/Session/M68.1},
venue = {Las Vegas, United States},
year = {2023}
}
@inproceedings{faucris.290124583,
abstract = {Quantum Computers will ultimately rely on near-perfect logical gates, implemented while correcting errors at the physical level. The need for developing quantum hardware optimized for performing fast, repeatable, and high-fidelity syndrome measurements in quantum error-correcting codes such as the surface code therefore becomes increasingly important. In my talk, I will present advances in performing qubit readout and two-qubit gates in multi-qubit superconducting quantum processors, which enabled the recent experimental demonstration of repeated quantum error correction in surfaces codes. I will show how quantum processors optimized for quantum error correction can also serve as a testbed to explore noisy intermediate-scale quantum algorithms. The talk will conclude with a discussion about open challenges and opportunities to advance the speed and fidelity of syndrome detection in scalable device architectures by exploiting tunable coupling elements.},
address = {Hannover, Germany},
author = {Eichler, Christopher},
date = {2023-03-05/2023-03-10},
faupublication = {yes},
keywords = {wwwquantum},
peerreviewed = {unknown},
title = {{Building} {Superconducting} {Quantum} {Hardware} towards {Error}-{Corrected} {Quantum} {Computing}},
url = {https://www.dpg-verhandlungen.de/year/2023/conference/samop/part/qi/session/5/contribution/1?lang=en},
venue = {Hannover, Germany},
year = {2023}
}
@inproceedings{faucris.288240364,
address = {Goeteborg, Sweden},
author = {Eichler, Christopher},
booktitle = {Seminar hosted by Per Delsing, Chalmers University},
date = {2021-09-29},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Building} {Superconducting} {Quantum} {Processors} to {exploreQuantum} {Error} {Correction} and {Quantum} {Neural} {Networks}},
venue = {Goeteborg, Sweden},
year = {2021}
}
@inproceedings{faucris.255622478,
abstract = {The evolution of a recombination-driven density depression in a krypton-gas-filled capillary, photoionized at MHz repetition rates, is interferometrically tracked. The msec-long buildup increases in amplitude with pulse energy and repetition rate.},
author = {Köhler, Johannes and Köttig, Felix and Schade, Daniel and Tani, F. and Russell, P. St. J. and Russell, J.},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-11-16/2020-11-20},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-04-19},
peerreviewed = {unknown},
publisher = {The Optical Society},
title = {{Buildup} of post-recombination refractive index changes in krypton photoionized at high repetition rates},
venue = {Washington, DC},
year = {2020}
}
@inproceedings{faucris.121654764,
abstract = {A bulk solid state Erbium glass laser used to generate ultrashort laser pulses in the femtosecond regime was presented using soliton dynamics. Intracavity self-phase modulation was used to achieve soliton mode-locking. The dependence of pulse shaping dynamics on the pump power and intracavity dispersion was investigated, and the results were compared with the soliton mode-locking model.},
author = {Leuchs, Gerd and et al.},
author_hint = {Wasik G., Helbing F. W., König F., Sizmann A., Leuchs Gerd},
booktitle = {CLEO Technical digest},
date = {2001-05-06/2001-05-11},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.bulker},
pages = {3-4},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Bulk} {Er}:{Yb}:glass soliton femtosecond laser},
venue = {Baltimore, MD},
volume = {CMA4},
year = {2001}
}
@article{faucris.106404804,
abstract = {Cylindrical specimens may be tested advantageously by using grazing-incidence interferometry. A multiple positions test in combination with rotational averaging has recently been used to separate the surface deviations of the specimen from the interferometric aberrations. To reduce the measuring time and to check whether the results are reliable, a second procedure is now investigated, which uses the principle of the multiple positions test to determine quantities proportional to the difference quotients of the surface deviations. After numerical integration, the results can be compared with those obtained previously by rotational averaging. The measurement principle is described, and calibration results are presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Mantel K, Lamprecht J, Lindlein N, Schwider J},
faupublication = {yes},
journal = {Applied Optics},
pages = {8013-8},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Calibration} for cylindrical specimens in grazing-incidence interferometry via integration of difference measurements.},
volume = {45},
year = {2006}
}
@inproceedings{faucris.120064604,
abstract = {Experimental results obtained on 10 Gb/s RZ-DPSK transmission in a recirculating fiber-loop setup show that nonlinear amplifying loop mirrors can efficiently enhance system performance. Main limiting factor is amplified Rayleigh backscattering in highly nonlinear fiber. © VDE VERLAG GMBH.},
author = {Schmauß, Bernhard and Stephan, Christian and Sponsel, Klaus and Onishchukov, Georgy and Leuchs, Gerd},
booktitle = {ECOC 2009, Vienna, Austria, 20-24 September},
date = {2009-09-20/2009-09-24},
faupublication = {yes},
isbn = {9781424450961},
note = {UnivIS-Import:2017-12-18:Pub.2009.tech.IE.LEH.cascad},
peerreviewed = {Yes},
title = {{Cascaded} {Phase}-{Preserving} {Amplitude} {Regeneration} in a {DPSK} {Transmission} {System}},
venue = {Vienna},
year = {2009}
}
@article{faucris.107122224,
abstract = {The performance of cascaded in-line phase-preserving amplitude regeneration using nonlinear amplifying loop mirrors has been studied in numerical simulations. As an example of a spectrally efficient modulation format with two amplitude states and multiple phase states, the regeneration performance of a star-16QAM format, basically an 8PSK format with two amplitude levels, was evaluated. An increased robustness against amplified spontaneous emission and nonlinear phase noise was observed resulting in a significantly increased transmission distance.},
author = {Röthlingshöfer, Tobias and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1364/oe.22.031729},
faupublication = {yes},
journal = {Optics Express},
note = {lhft{\_}intern.bib::Roethlingshoefer2014{\_}4},
pages = {31729},
peerreviewed = {Yes},
title = {{Cascaded} phase-preserving multilevel amplitude regeneration},
volume = {22},
year = {2014}
}
@article{faucris.294160736,
abstract = {We describe a proposal for a type of optomechanical system based on a drop of liquid helium that is magnetically levitated in vacuum. In the proposed device, the drop would serve three roles: its optical whispering-gallery modes would provide the optical cavity, its surface vibrations would constitute the mechanical element, and evaporation of He atoms from its surface would provide continuous refrigeration. We analyze the feasibility of such a system in light of previous experimental demonstrations of its essential components: magnetic levitation of mm-scale and cm-scale drops of liquid He, evaporative cooling of He droplets in vacuum, and coupling to high-quality optical whispering-gallery modes in a wide range of liquids. We find that the combination of these features could result in a device that approaches the single-photon strong-coupling regime, due to the high optical quality factors attainable at low temperatures. Moreover, the system offers a unique opportunity to use optical techniques to study the motion of a superfluid that is freely levitating in vacuum (in the case of He4). Alternatively, for a normal fluid drop of He3, we propose to exploit the coupling between the drop's rotations and vibrations to perform quantum nondemolition measurements of angular momentum.},
author = {Childress, Lilian and Schmidt, M. P. and Kashkanova, A. D. and Brown, C. D. and Harris, G. I. and Aiello, Andrea and Marquardt, Florian and Harris, J. G. E.},
doi = {10.1103/PhysRevA.96.063842},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2023-03-27},
peerreviewed = {Yes},
title = {{Cavity} optomechanics in a levitated helium drop},
volume = {96},
year = {2017}
}
@inproceedings{faucris.229195542,
abstract = {Ultrashort laser pulses at high repetition rates are a fundamental tool in a wide range of applications in strong-field physics and attosecond science, where particular attention has to be given to the stability of the carrier to envelope phase (CEP) of the ultrashort optical waveform [1]. Here we report the generation of close to single-cycle pulses with stable CEP at 800 kHz repetition rate, obtained via soliton-effect self-compression in a gas-filled kagomé-type hollow-core photonic crystal fibre (kagomé-PCF) [2]. In addition, we have measured for the first time the CEP stability of soliton-emitted dispersive waves (DWs) lying in the ultraviolet spectral region.},
author = {Ermolov, Alexey and Heide, Christian and Dienstbier, Philip and Tani, Francesco and Köttig, Felix and Hommelhoff, Peter and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872709},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{CEP}-stable generation of close to single-cycle and ultrashort {UV} pulses at 800 {kHz} repetition rate using a gas-filled hollow-core {PCF}},
venue = {Munich},
year = {2019}
}
@article{faucris.243349062,
abstract = {We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010-2015. Assuming standard oscillations, the astrophysical neutrinos in this dedicated cascade sample are dominated (similar to 90%) by electron and tau flavors. The flux, observed in the sensitive energy range from 16 TeV to 2.6 PeV, is consistent with a single power-law model as expected from Fermi-type acceleration of high energy particles at astrophysical sources. We find the flux spectral index to be gamma = 2.53 +/- 0.07 and a flux normalization for each neutrino flavor of phi(astro) = 1.66(-0.27)(+0.25) at E-0 = 100 TeV, in agreement with IceCube's complementary muon neutrino results and with all-neutrino flavor fit results. In the measured energy range we reject spectral indices gamma <= 2.28 at >= 3 sigma significance level. Because of high neutrino energy resolution and low atmospheric neutrino backgrounds, this analysis provides the most detailed characterization of the neutrino flux at energies below similar to 100 TeV compared to previous IceCube results. Results from fits assuming more complex neutrino flux models suggest a flux softening at high energies and a flux hardening at low energies (p value >= 0.06). The sizable and smooth flux measured below similar to 100 TeV remains a puzzle. In order to not violate the isotropic diffuse gamma-ray background as measured by the Fermi Large Area Telescope, it suggests the existence of astrophysical neutrino sources characterized by dense environments which are opaque to gamma rays.},
author = {Aartsen, M. G. and Ackermann, M. and Adams, J. and Aguilar, J. A. and Ahlers, M. and Ahrens, M. and Alispach, C. and Andeen, K. and Anderson, T. and Ansseau, and Anton, Gisela and Arguelles, C. and Auffenberg, J. and Axani, S. and Backes, P. and Bagherpour, H. and Bai, X. and Balagopal, A. and Barbano, A. and Barwick, S. W. and Bastian, B. and Baum, V. and Baur, S. and Bay, R. and Beatty, J. J. and Becker, K-H and Tjus, J. Becker and Benzvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Bindig, D. and Blaufuss, E. and Blot, S. and Bohm, C. and Boeser, S. and Botner, O. and Boettcher, J. and Bourbeau, E. and Bourbeau, J. and Bradascio, F. and Braun, J. and Bron, S. and Brostean-Kaiser, J. and Burgman, A. and Buscher, J. and Busse, R. S. and Carver, T. and Chen, C. and Cheung, E. and Chirkin, D. and Choi, S. and Clark, K. and Classen, L. and Coleman, A. and Collin, G. H. and Conrad, J. M. and Coppin, P. and Correa, P. and Cowen, D. F. and Cross, R. and Dave, P. and De Clercq, C. and Delaunay, J. J. and Dembinski, H. and Deoskar, K. and De Ridder, S. and Desiati, P. and De Vries, K. D. and De Wasseige, G. and De With, M. and Deyoung, T. and Diaz, A. and Diaz-Velez, J. C. and Dujmovic, H. and Dunkman, M. and Dvorak, E. and Eberhardt, B. and Ehrhardt, T. and Eller, P. and Engel, R. and Evenson, P. A. and Fahey, S. and Fazely, A. R. and Felde, J. and Filimonov, K. and Finley, C. and Fox, D. and Franckowiak, A. and Friedman, E. and Fritz, A. and Gaisser, T. K. and Gallagher, J. and Ganster, E. and Garrappa, S. and Gerhardt, L. and Ghorbani, K. and Glauch, T. and Glüsenkamp, Thorsten and Goldschmidt, A. and Gonzalez, J. G. and Grant, D. and Gregoire, T. and Griffith, Z. and Griswold, S. and Guender, M. and Guenduez, M. and Haack, C. and Hallgren, A. and Halliday, R. and Halve, L. and Halzen, F. and Hanson, K. and Haungs, A. and Hebecker, D. and Heereman, D. and Heix, P. and Helbing, K. and Hellauer, R. and Henningsen, F. and Hickford, S. and Hignight, J. and Hill, G. C. and Hoffman, K. D. and Hoffmann, R. and Hoinka, T. and Hokanson-Fasig, B. and Hoshina, K. and Huang, F. and Huber, M. and Huber, T. and Hultqvist, K. and Huennefeld, M. and Hussain, R. and In, S. and Iovine, N. and Ishihara, A. and Jansson, M. and Japaridze, G. S. and Jeong, M. and Jero, K. and Jones, B. J. P. and Jonske, F. and Joppe, R. and Kang, D. and Kang, W. and Kappes, A. and Kappesser, D. and Karg, T. and Karl, M. and Karle, A. and Katz, Uli and Kauer, M. and Kelley, J. L. and Kheirandish, A. and Kim, J. and Kintscher, T. and Kiryluk, J. and Kittler, Thomas and Klein, S. R. and Koirala, R. and Kolanoski, H. and Koepke, L. and Kopper, C. and Kopper, S. and Koskinen, D. J. and Kowalski, M. and Krings, K. and Krueckl, G. and Kulacz, N. and Kurahashi, N. and Kyriacou, A. and Lanfranchi, J. L. and Larson, M. J. and Lauber, F. and Lazar, J. P. and Leonard, K. and Lesiak-Bzdak, M. and Leszczynska, A. and Leuermann, M. and Liu, Q. R. and Lohfink, E. and Mariscal, C. J. Lozano and Lu, L. and Lucarelli, F. and Luenemann, J. and Luszczak, W. and Lyu, Y. and Ma, W. Y. and Madsen, J. and Maggi, G. and Mahn, K. B. M. and Makino, Y. and Mallik, P. and Mallot, K. and Mancina, S. and Maris, I. C. and Maruyama, R. and Mase, K. and Maunu, R. and Mcnally, F. and Meagher, K. and Medici, M. and Medina, A. and Meier, M. and Meighen-Berger, S. and Merino, G. and Meures, T. and Micallef, J. and Mockler, D. and Momente, G. and Montaruli, T. and Moore, R. W. and Morse, R. and Moulai, M. and Muth, P. and Nagai, R. and Naumann, U. and Neer, G. and Niederhausen, H. and Nisa, M. U. and Nowicki, S. C. and Nygren, D. R. and Pollmann, A. Obertacke and Oehler, M. and Olivas, A. and O'Murchadha, A. and O'Sullivan, E. and Palczewski, T. and Pandya, H. and Pankova, D. and Park, N. and Peiffer, P. and De Los Heros, C. Perez and Philippen, S. and Pieloth, D. and Pieper, S. and Pinat, E. and Pizzuto, A. and Plum, M. and Porcelli, A. and Price, P. B. and Przybylski, G. T. and Raab, C. and Raissi, A. and Rameez, M. and Rauch, L. and Rawlins, K. and Rea, I. C. and Rehman, A. and Reimann, R. and Relethford, B. and Renschler, M. and Renzi, G. and Resconi, E. and Rhode, W. and Richman, M. and Robertson, S. and Rongen, M. and Rott, C. and Ruhe, T. and Ryckbosch, D. and Rysewyk, D. and Safa, and Herrera, S. E. Sanchez and Sandrock, A. and Sandroos, J. and Santander, M. and Sarkar, S. and Satalecka, K. and Schaufel, M. and Schieler, H. and Schlunder, P. and Schmidt, T. and Schneider, A. and Schneider, Jessica and Schroeder, F. G. and Schumacher, L. and Sclafani, S. and Seckel, D. and Seunarine, S. and Shefali, S. and Silva, M. and Snihur, R. and Soedingrekso, J. and Soldin, D. and Song, M. and Spiczak, G. M. and Spiering, C. and Stachurska, J. and Stamatikos, M. and Stanev, T. and Stein, R. and Stettner, J. and Steuer, A. and Stezelberger, T. and Stokstad, R. G. and Stoel, A. and Strotjohann, N. L. and Stuerwald, T. and Stuttard, Thomas and Sullivan, G. W. and Taboada, and Tenholt, F. and Ter-Antonyan, S. and Terliuk, A. and Tilav, S. and Tollefson, K. and Tomankova, L. and Toennis, C. and Toscano, S. and Tosi, D. and Trettin, A. and Tselengidou, Maria and Tung, C. F. and Turcati, A. and Turcotte, R. and Turley, C. F. and Ty, B. and Unger, E. and Elorrieta, M. A. Unland and Usner, M. and Vandenbroucke, J. and Van Driessche, W. and Van Eijk, D. and Van Eijndhoven, N. and Van Santen, J. and Verpoest, S. and Vraeghe, M. and Walck, C. and Wallace, A. and Wallraff, M. and Wandkowsky, N. and Watson, T. B. and Weaver, C. and Weindl, A. and Weiss, M. J. and Weldert, J. and Wendt, C. and Werthebach, J. and Whelan, B. J. and Whitehorn, N. and Wiebe, K. and Wiebusch, C. H. and Wille, L. and Williams, D. R. and Wills, L. and Wolf, M. and Wood, J. and Wood, T. R. and Woschnagg, K. and Wrede, Gerrit and Xu, D. L. and Xu, X. W. and Xu, Y. and Yanez, J. P. and Yodh, G. and Yoshida, S. and Yuan, T. and Zoecklein, M.},
doi = {10.1103/PhysRevLett.125.121104},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team WoS Importer:2020-10-02},
peerreviewed = {Yes},
title = {{Characteristics} of the {Diffuse} {Astrophysical} {Electron} and {Tau} {Neutrino} {Flux} with {Six} {Years} of {IceCube} {High} {Energy} {Cascade} {Data}},
volume = {125},
year = {2020}
}
@phdthesis{faucris.319176717,
abstract = {The aim of this thesis was the characterization of continuous variable quantum states of light and their application in quantum information processing protocols. The photo current statistics of squeezed and entangled states from a nonlinear fiber Sagnac interferometer were analyzed and can be regarded as Gaussian states within the measurement accuracy. In addition, instead of the usual variance, the covariance was experimentally investigated as a relative measure of squeezing, using a balanced self-homodyne system. As an application in a quantum information protocol the experimental distillation of squeezed states has been shown. The undistilled squeezed states suffered from non-Gaussian classical excess noise. In the experiment nearly the complete squeezing could be recovered by a probabilistic selection method. The Cavalcanti-Reid criterion to prove intrinsic macroscopic superposition states in continuous variables was experimentally applied for the first time. With this criterion generalized superposition states were proven in vacuum and intense coherent states with a distance in phase space of 0.51+/-0.02 shot noise units. For squeezed states from an optical parametric oscillator generalized superposition states were proven with a distance of up to 0.83+/-0.02 shot noise units. At the same time the dependence of the criterion on squeezing and purity of the states was investigated. To reconstruct the quantum state of the polarization variables of light, a theory was developed, that is based on the su(2) algebra and at the same time takes into account the possibility, that the photon number is not fixed. It was found that for high photon numbers the quantum state reconstruction of the SU(2) Q function in Poincare space is an inverse 3D Radon transformation. With this method the Q function of a polarization squeezed state was reconstructed from measured data. In the dark plane of a polarization squeezed state the Wigner function of an intense Kerr squeezed state was reconstructed for the first time.
8%},
volume = {3},
year = {2015}
}
@article{faucris.110038104,
abstract = {The electronic properties of shallow acceptors in p -doped GaAs{110} are investigated with scanning tunneling microscopy (STM) at low temperature. Shallow acceptors are known to exhibit distinct triangular contrasts in STM images for certain bias voltages. Spatially resolved I (V) spectroscopy is performed to identify their energetic origin and behavior. A crucial parameter-the scanning tunneling microscope tip's work function-is determined experimentally. The voltage dependent potential configuration and band bending situation are derived. Ways to validate the calculations with the experiment are discussed. Differential conductivity maps reveal that the triangular contrasts are only observed with a depletion layer present under the STM tip. The tunnel process leading to the anisotropic contrasts calls for electrons to tunnel through vacuum gap and a finite region in the semiconductor. © 2007 The American Physical Society.},
author = {Loth, Sebastian and Wenderoth, Martin and Ulbrich, Rainer G. and Malzer, Stefan and Döhler, Gottfried},
doi = {10.1103/PhysRevB.76.235318},
faupublication = {yes},
journal = {Physical Review B},
peerreviewed = {Yes},
title = {{Connection} of anisotropic conductivity to tip-induced space-charge layers in scanning tunneling spectroscopy of p-doped {GaAs}},
volume = {76},
year = {2007}
}
@article{faucris.123796684,
abstract = {Inaccuracy of EEG electrode coordinates forms an error term in forward model generation and ultimate source reconstruction performance. This error arises from the combination of both intrinsic measurement noise of the digitization apparatus and manual coregistration error when selecting corresponding points on anatomical MRI volumes. A common assumption is that such an error would lead only to displacement of localized sources. Here, we measured electrode positions on a 3D-printed full-scale replica head, using three different techniques: a fringe projection 3D scanner, a novel "Flying Triangulation" 3D sensor, and a traditional electromagnetic digitizer. Using highly accurate fringe projection data as ground truth, the Flying Triangulation sensor had a mean error of 1.5 mm while the electromagnetic digitizer had a mean error of 6.8 mm. Then, again using the fringe projection as ground truth, individual EEG simulations were generated, with source locations across the brain space and a range of sensor noise levels. The simulated datasets were then processed using a beamformer in conjunction with the electrode coordinates registered with the Flying Triangulation and electromagnetic digitizer methods. The beamformer's output SNR was severely degraded with the digitizer-based positions but less severely with the Flying Triangulation coordinates. Therefore, the seemingly innocuous error in electrode registration may result in substantial degradation of beamformer performance, with output SNR penalties up to several decibels. In the case of low-SNR signals such as deeper brain structures or gamma band sources, this implies that sensor coregistration accuracy could make the difference between successful detection of such activity or complete failure to resolve the source.},
author = {Dalal, Sarang S. and Rampp, Stefan and Willomitzer, Florian and Ettl, Svenja},
doi = {10.3389/fnins.2014.00042},
faupublication = {yes},
journal = {Frontiers in Neuroscience},
note = {EVALuna2:22315},
pages = {42},
peerreviewed = {unknown},
title = {{Consequences} of {EEG} electrode position error on ultimate beamformer source reconstruction performance},
volume = {8},
year = {2014}
}
@article{faucris.112247784,
author = {Bauerschmidt, Sebastian and Malzer, Stefan and Preu, Sascha and Döhler, Gottfried and Lu, Hong and Gossard, Art and Wang, Lijun},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-09:Pub.2010.nat.dphy.IAP.LAP.contin},
pages = {7671D},
peerreviewed = {Yes},
title = {{Continuos} {Wave} {Terahertz} {Emitter} {Arrays} for {Spectroscopy} and {Imaging} {Applications}},
volume = {7671},
year = {2010}
}
@inproceedings{faucris.228163015,
abstract = {Air pollution by particles of aerodynamic diameter less than 2.5 μm (PM2.5) is currently an important environmental issue. As standard methods for monitoring and characterization are time-consuming and expensive, there is need for a simple, effective and inexpensive device for real-Time PM2.5 monitoring. Although optical methods based on the scattering of laser beams exist, they do not provide independent measurement of particle size and refractive index. In systems based on detection in an evanescent optical field, particles tend to adhere to the surface, strongly limiting the device lifetime. Here we report a new approach to airborne particle characterization that makes use of hollow-core photonic crystal fibre (HC-PCF). Employing optical gradient and radiation forces to trap and propel airborne particles along the hollow core, it provides in situ particle counting, sizing and refractive index measurement in real-Time with effectively unlimited device lifetime. We show that the transmission drop and time-of-flight can be unambiguously mapped to particle size and refractive index.},
author = {Sharma, Abhinav and Xie, Shangran and Zeltner, Richard and Russell, Philip St. John},
booktitle = {Proceedings of SPIE - The International Society for Optical Engineering},
date = {2019-10-01/2019-10-04},
doi = {10.1117/12.2540406},
editor = {Kyriacos Kalli, Gilberto Brambilla, Sinead O'Keeffe},
faupublication = {no},
isbn = {9781510631236},
keywords = {Optical trapping and manipulation; Photonic crystal fibre; PM},
note = {CRIS-Team Scopus Importer:2019-10-22},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Continuous} counting, sizing and refractive index measurement of airborne particles in hollow-core photonic crystal fibre},
venue = {Limassol},
volume = {11199},
year = {2019}
}
@inproceedings{faucris.276462769,
abstract = {We present the high efficient generation of narrow-band heralded single photons, widely tunable in wavelength and bandwidth using resonator enhanced spontaneous down conversion in a crystalline whispering gallery mode resonator. © 2012 OSA.},
author = {Förtsch, Michael and Fürst, Josef and Wittmann, Christoffer and Strekalov, Dmitry and Aiello, Andrea and Silberhorn, Christine and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {2012 Conference on Lasers and Electro-Optics, CLEO 2012},
date = {2012-05-06/2012-05-11},
faupublication = {yes},
isbn = {9781467318396},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Continuously} adjustable narrow-band heralded single photon source},
venue = {USA},
year = {2012}
}
@article{faucris.112066284,
abstract = {We report the first experimental characterization of the first-order continuous variable orbital angular momentum states. Using a spatially nondegenerate optical parametric oscillator (OPO) we produce quadrature entanglement between the two first-order Laguerre-Gauss modes. The family of orbital angular momentum modes is mapped on an orbital Poincaré sphere, where the mode's position on the sphere is spanned by the three orbital parameters. Using a nondegenerate OPO we produce squeezing of these parameters, and as an illustration, we reconstruct the "cigar-shaped" uncertainty volume on the orbital Poincaré sphere. © 2009 The American Physical Society.},
author = {Lassen, Mikael Ostergaard and Leuchs, Gerd and Andersen, Ulrik Lund},
doi = {10.1103/PhysRevLett.102.163602},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.contin},
pages = {163602},
peerreviewed = {Yes},
title = {{Continuous} {Variable} {Entanglement} and {Squeezing} of {Orbital} {Angular} {Momentum} {States}},
volume = {102},
year = {2009}
}
@article{faucris.111359644,
abstract = {The pairwise production of photons in nonlinear optical processes ensures entanglement to occur between two photons. E.g. when the Kerr effect is exploited, the photons are produced in different frequency modes, which are symmetric with respect to the pump frequency. Since these photons are produced into the same spatial mode, the quadrature entanglement can be witnessed only by the use of a frequency selective device which transforms the adjacent frequency modes into two different spatial modes. We use a Mach-Zehnder interferometer with a large path length difference to separate symmetric frequency modes located 10.25 MHz from the carrier. We measure correlations of the quadrature components of 1.6 ± 0.1dB below the shot noise in the amplitude and 1.4 ± 0.1dB in the phase. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.},
author = {Leuchs, Gerd and et al.},
author_hint = {Glöckl O., Andersen U.L., Leuchs Gerd},
doi = {10.1002/prop.200610309},
faupublication = {yes},
journal = {Fortschritte Der Physik-Progress of Physics},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.contin},
pages = {846-855},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Continuous} variable entanglement between frequency modes},
volume = {54},
year = {2006}
}
@article{faucris.276471618,
abstract = {Many different quantum-information communication protocols such as teleportation, dense coding, and entanglement-based quantum key distribution are based on the faithful transmission of entanglement between distant location in an optical network. The distribution of entanglement in such a network is, however, hampered by loss and noise that is inherent in all practical quantum channels. Thus, to enable faithful transmission one must resort to the protocol of entanglement distillation. In this paper we present a detailed theoretical analysis and an experimental realization of continuous variable entanglement distillation in a channel that is inflicted by different kinds of non-Gaussian noise. The continuous variable entangled states are generated by exploiting the third order nonlinearity in optical fibers, and the states are sent through a free-space laboratory channel in which the losses are altered to simulate a free-space atmospheric channel with varying losses. We use linear optical components, homodyne measurements, and classical communication to distill the entanglement, and we find that by using this method the entanglement can be probabilistically increased for some specific non-Gaussian noise channels. © 2010 The American Physical Society.},
author = {Dong, Ruifang and Lassen, Mikael and Heersink, Joel and Marquardt, Christoph and Filip, Radim and Leuchs, Gerd and Andersen, Ulrik L.},
doi = {10.1103/PhysRevA.82.012312},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Continuous}-variable entanglement distillation of non-{Gaussian} mixed states},
volume = {82},
year = {2010}
}
@inproceedings{faucris.276472622,
abstract = {We experimentally demonstrate distillation of continuous variable entangled light that has undergone non-Gaussian attenuation loss. The continuous variable entanglement is generated with optical fibers and sent through a lossy channel, where the transmission is varying in time. By employing simple linear optical components, a measurement induced operation and classical communication, we demonstrate that the entanglement is probabilistically increased. © 2009 American Institute of Physics.},
author = {Lassen, Mikael Ostergaard and Dong, Ruifang and Heersink, Joel and Marquardt, Christoph and Filip, Radim and Leuchs, Gerd and Ulrik, L. Andersen},
booktitle = {AIP Conference Proceedings},
date = {2009-08-19/2009-08-24},
doi = {10.1063/1.3131300},
faupublication = {yes},
isbn = {9780735406476},
keywords = {Distillation; Entanglement; Quantum information},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {177-180},
peerreviewed = {unknown},
title = {{Continuous} variable entanglement distillation of non-gaussian states},
venue = {CAN},
volume = {1110},
year = {2009}
}
@inproceedings{faucris.276452626,
abstract = {Continuous variable free space quantum communication offers high-speed distribution of quantum states for quantum key distribution under daylight condition. We report our activities on experimental investigations ranging from intra-city links to satellite based communication.},
author = {Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2016-10-30/2016-11-03},
doi = {10.1364/lsc.2016.lw1b.1},
faupublication = {yes},
isbn = {9781943580200},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Continuous} variable free space quantum communication},
venue = {Boston, MA, USA},
year = {2016}
}
@incollection{faucris.108055904,
address = {Weinheim},
author = {Andersen, Ulrik Lund and Leuchs, Gerd},
booktitle = {Lectures on Quantum Information},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2006.nat.dphy.optik.1optik.contin{\_}6},
pages = {297-310},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
title = {{Continuous} variable quantum communication},
year = {2006}
}
@incollection{faucris.243056930,
author = {Andersen, Ulrik Lund and Leuchs, Gerd},
booktitle = {Quantum Information: From Foundations to Quantum Technology Applications},
doi = {10.1002/9783527805785.ch18},
editor = {Dagmar Bruss, Gerd Leuchs},
faupublication = {yes},
isbn = {978-3-527-80579-2},
month = {Jan},
note = {CRIS-Team WoS Importer:2020-09-25},
pages = {383-400},
peerreviewed = {unknown},
publisher = {John Wiley & Sons},
title = {{Continuous} {Variable} {Quantum} {Communication} with {Gaussian} {States}},
volume = {2},
year = {2019}
}
@article{faucris.119451904,
author = {Leuchs, Gerd and et al.},
author_hint = {Silberhorn Christine, Ralph T.C., Lütkenhaus Norbert, Leuchs Gerd},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.contin},
pages = {167901},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Continuous} {Variable} {Quantum} {Cryptography} - beating the {3dB} loss limit},
volume = {89},
year = {2002}
}
@article{faucris.111349524,
abstract = {We present an experimental demonstration of a quantum key distribution protocol using coherent polarization states. Post selection is used to ensure a low error rate and security against beam-splitting attacks even in the presence of high losses. Signal encoding and readout in polarization bases avoids the difficult task of sending a local oscillator with the quantum channel. This makes our setup robust and easy to implement. A shared key was established for losses up to 64%.},
author = {Leuchs, Gerd and et al.},
author_hint = {Lorenz Stefan, Korolkova Natalia, Leuchs Gerd},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.contin},
pages = {273-277},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Continuous} variable quantum key distribution using polarization encoding and post selection},
volume = {79},
year = {2004}
}
@article{faucris.120307484,
abstract = {We report on a photonic system for generation of high quality continuous-wave (CW) sub-THz signals. The system consists on a gain-switching-based optical frequency comb generator (GS-OFCG), a two-optical-modes selection mechanism and a n-i-pn-i-p superlattice photomixer. As mode selection mechanism, both selective tunable optical filtering using Fabry-Pérot tunable filters (FPTFs) and Optical Injection Locking (OIL) are evaluated. The performance of the reported system surpasses in orders of magnitude the performance of any commercially available optical mm-wave and sub-THz generation system in a great number of parameters. It matches and even overcomes those of the best commercially available electronic THz generation systems. The performance parameters featured by our system are: linewidth 10 Hz at 120 GHz, complete frequency range coverage (60-140 GHz) with a resolution in the order of 0.1 Hz at 120 GHz ( 10 of generated frequency), high long term frequency stability (5 Hz deviation over one hour). Most of these values are limited by the measurement instrumentation accuracy and resolution, thus the actual values of the system could be better than the reported ones. The frequency can be extended straightforwardly up to 1 THz extending the OFCG frequency span. This system is compact, robust, reliable, offers a very high performance, especially suited for sub-THz photonic local oscillators and high resolution spectroscopy.},
author = {Malzer, Stefan and Criado, Ruben and de Dios, Christina and Preu, Sascha and Prior, E. and Acedo, Pablo and Döhler, Gottfried and Lu, Hong and Gossard, Art},
doi = {10.1109/TTHZ.2013.2260374},
faupublication = {yes},
journal = {IEEE Transactions on Terahertz Science and Technology},
peerreviewed = {Yes},
title = {{Continuous}-{Wave} {Sub}-{THz} {Photonic} {Generation} {With} {Ultra}-{Narrow} {Linewidth}, {Ultra}-{High} {Resolution}, {Full} {Frequency} {Range} {Coverage} and {High} {Long}-{Term} {Frequency} {Stability}},
year = {2013}
}
@inproceedings{faucris.107784424,
abstract = {We report on arrays of THz-emitters based on n-i-pn-i-p-superlattice photomixers for imaging and spectroscopic applications. The output power of a n-i-pn-i-p superlattice photomixers recently has reached nearly 1 μW at 1 THz with a broadband antenna. There are no fundamental physical limitations at this stage for further improvement. Tunable continuous wave (CW) THz-sources for imaging and spectroscopy are highly desired tools for security and environmental applications. In particular, most stand-off imaging applications require a rather high THz power to allow for a sufficient dynamic range, and a narrow illumination spot size for high spatial resolution. Both goals can be reached by using an array of mutually coherent photomixers. We have simulated beam patterns for an arbitrary number of mutually coherent single sources with respect to a small beam size and high peak intensity. Here, we confirm the simulations experimentally by an array of 4 sources with a 4 inch THz optics. The beam profile is measured in the target plane at a stand-off distance of 4.2 m. As a result, the beam diameter is reduced by a factor of 6 and the peak intensity is enhanced by a factor of close to (4) = 16, in excellent agreement with our simulations. Such an arrangement allows not only for high resolution stand-off imaging but also for spectroscopic investigations at stand-off distances. The THz frequency can be tuned over more than a decade (i.e. 0.1 to 2.5 THz) by tuning the wavelength of the mixing lasers. The spectral linewidth of the THz sources is only limited by the linewidths of the mixing lasers and can be made extremely narrow. A straightforward demonstration is achieved by water vapor spectroscopy in laboratory air with a single source. © 2010 Copyright SPIE - The International Society for Optical Engineering.},
author = {Bauerschmidt, Sebastian and Preu, Sascha and Malzer, Stefan and Döhler, Gottfried and Wang, Lijun and Lu, Hong and Gossard, Art},
booktitle = {Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense},
doi = {10.1117/12.850090},
faupublication = {yes},
peerreviewed = {Yes},
publisher = {International Society for Optical Engineering; 1999},
title = {{Continuous} wave terahertz emitter arrays for spectroscopy and imaging applications},
venue = {Orlando, FL},
volume = {7671},
year = {2010}
}
@article{faucris.204023822,
abstract = {We report on the generation and annihilation of color centers in 4H
silicon carbide (SiC) by proton irradiation and subsequent annealing.
Using low-temperature photoluminescence (PL), we study the
transformation of PL spectra for different proton doses and annealing
temperatures. Among well reported defect signatures, we observe
omnipresent but not yet identified PL signatures consisting of three
sharp and temperature stable lines (denoted TS1,2,3) at
768.8 nm, 812.0 nm, and 813.3 nm. These lines show a strong correlation
throughout all measurement parameters, suggesting that they belong to
the same microscopic defect. Further, a clear dependence of the TS1,2,3 line
intensities on the initial implantation dose is observed after
annealing, indicating that the underlying defect is related to
implantation induced intrinsic defects. The overall data suggest a
sequential defect transformation: proton irradiation initially generates
isolated silicon vacancies which are transformed into antisite vacancy
complexes which are, in turn, transformed into presumably
intrinsic-related defects, showing up as TS1,2,3 PL lines. We present recipes for the controlled generation of these color center},
author = {Rühl, Maximilian and Ott, Christian and Götzinger, Stephan and Krieger, Michael and Weber, Heiko B.},
doi = {10.1063/1.5045859},
faupublication = {yes},
journal = {Applied Physics Letters},
keywords = {Farbzentren;},
pages = {122102},
peerreviewed = {Yes},
title = {{Controlled} generation of intrinsic near-infrared color centers in {4H}-{SiC} via proton irradiation and annealing},
volume = {113},
year = {2018}
}
@inproceedings{faucris.259939318,
address = {NEW YORK},
author = {He, Wenbin and Pang, Meng and Yeh, Dung-Han and Russell, Philip St. John},
booktitle = {2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)},
doi = {10.1364/CLEOPR.2020.C2B{\_}1},
faupublication = {yes},
month = {Jan},
note = {CRIS-Team WoS Importer:2021-06-11},
peerreviewed = {unknown},
publisher = {IEEE},
title = {{Controlled} {Synthesis} and {Dissociation} of {Soliton} {Molecules} {Using} {Parallel} {Reactors} in {Optomechanical} {Lattice}},
year = {2020}
}
@article{faucris.110859364,
abstract = {Solitons in optical fibres are stable objects when described classically. The quantum properties,[1] however, change with propagation distance due to Kerr and Raman induced intrapulse correlations. It is demonstrated that spectral filters and interferometers can be used to control the quantum properties of 130 fs solitons. This lends to the generation of many photon states of the light field with non-classical noise reduction and quantum entanglement for application in quantum communication.},
author = {Leuchs, Gerd and et al.},
author_hint = {Korolkova Natalia, Leuchs Gerd, Schmitt S., Silberhorn Ch., Sizmann A., Stratmann M., Weiß O.},
faupublication = {yes},
journal = {Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.contro},
pages = {223-228},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Controlling} the quantum properties of optical solitons in fibres},
volume = {24},
year = {2000}
}
@article{faucris.108522524,
author = {Leuchs, Gerd and et al.},
author_hint = {Krivitsky Leonid A., Andersen Ulrik L., Dong Ruifang, Huck A , Wittmann Christoffer, Leuchs Gerd},
doi = {10.1103/PhysRevA.79.033828},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.correl},
pages = {033828},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Correlation} measurement of squeezed light},
volume = {79},
year = {2009}
}
@inproceedings{faucris.107334964,
author = {Häusler, Gerd},
booktitle = {Proc. of 3rd Topical Meeting onOptoelectronic Distance Measurement and Applications (ODIMAP III)},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.corrup},
pages = {278-282},
title = {{Corrupting} coherence - ubquitous inthe metrologists daily life},
venue = {Pavia, Italy},
year = {2001}
}
@article{faucris.285413338,
abstract = {We characterize the formation of robust stationary states formed by light plateaus separated by two local switching fronts in only one of two counterpropagating fields in ring resonators with normal dispersion. Such states are due to global cross coupling and allow for frequency combs to switch from one field to the other by simply tuning the input laser frequency. Exact expressions for the distance between fronts and for plateau powers are provided in excellent agreement with simulations. These demonstrate an unusual high degree of control over pulse and plateau duration in one of the fields upon changes of one of the input laser frequencies. We identify a wide parameter region in which light plateaus are self-starting and are the only stable solution. For certain values of the detunings we find multistable states of plateaus with switching fronts, slowly oscillating homogeneous states and nonoscillating homogeneous states of the counterpropagating fields. Robustness and multistability of these unusual single-field front solutions are provided in parameter ranges that are experimentally achievable in a wide variety of ring resonators.},
author = {Campbell, Graeme N. and Zhang, Shuangyou and Del Bino, Leonardo and Del'Haye, Pascal and Oppo, Gian-Luca},
doi = {10.1103/PhysRevA.106.043507},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2022-11-18},
peerreviewed = {Yes},
title = {{Counterpropagating} light in ring resonators: {Switching} fronts, plateaus, and oscillations},
volume = {106},
year = {2022}
}
@article{faucris.245462869,
abstract = {We present a technique that uses noisy broadband pulse bursts generated by modulational instability to probe nonlinear processes, including infrared-inactive Raman transitions, in molecular gases. These processes imprint correlations between different regions of the noisy spectrum, which can be detected by acquiring single shot spectra and calculating the Pearson correlation coefficient between the different frequency components. Numerical simulations verify the experimental measurements and are used to further understand the system and discuss methods to improve the signal strength and the spectral resolution of the technique.},
author = {Suresh, Mallika and Russell, Philip St. John and Tani, Francesco},
doi = {10.1364/OE.405767},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2020-11-20},
pages = {34328-34336},
peerreviewed = {Yes},
title = {{Covariance} spectroscopy of molecular gases using fs pulse bursts created by modulational instability in gas-filled hollow-core fiber},
volume = {28},
year = {2020}
}
@article{faucris.237702834,
abstract = {We propose a step-by-step manual for the construction of alternative theories of gravity, perturbatively as well as nonperturbatively. The construction is guided by no more than two fundamental principles that we impose on the gravitational dynamics: invariance under spacetime diffeomorphisms and causal compatibility with given matter dynamics, provided that spacetime is additionally endowed with matter fields. The developed framework then guides the computation of the most general, alternative theory of gravity that is consistent with the two fundamental requirements. Utilizing this framework we recover the cosmological sector of general relativity solely from assuming that spacetime is a spatially homogeneous and isotropic metric manifold. On top of that, we explicitly test the perturbative framework by deriving the most general third-order expansion of a metric theory of gravity that is causally compatible with a Klein-Gordon scalar field. Thereby we recover the perturbative expansion of general relativity. To demonstrate how new physics emerges from our approach, we finally construct the most comprehensive third-order expansion of a theory of gravity that supports general (not necessarily Maxwellian) linear electrodynamics.},
author = {Alex, Nils and Reinhart, Tobias},
doi = {10.1103/PhysRevD.101.084025},
faupublication = {yes},
journal = {Physical Review D},
note = {CRIS-Team WoS Importer:2020-04-24},
peerreviewed = {Yes},
title = {{Covariant} constructive gravity: {A} step-by-step guide towards alternative theories of gravity},
volume = {101},
year = {2020}
}
@article{faucris.123556884,
abstract = {We demonstrate a novel approach of violating position-dependent Bell inequalities by photons emitted via independent single photon sources in free space. We trace this violation back to path entanglement created a posteriori by the selection of modes clue to the process of detection. (C) 2010 Elsevier B.V. All rights reserved.},
author = {Wiegner, Ralph and Thiel, Christoph and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1016/j.physleta.2010.06.047},
faupublication = {yes},
journal = {Physics Letters A},
pages = {3405-3409},
peerreviewed = {Yes},
title = {{Creating} path entanglement and violating {Bell} inequalities by independent photon sources},
volume = {374},
year = {2010}
}
@article{faucris.265508159,
abstract = {An optical ring resonator with third-order, or Kerr, nonlinearity will exhibit symmetry breaking between the two counterpropagating circulating powers when pumped with sufficient power in both the clockwise and counterclockwise directions. This is due to the effects of self- and cross-phase modulation on the resonance frequencies in the two directions. The critical point of this symmetry breaking exhibits universal behaviors including divergent responsivity to external perturbations, critical slowing down, and scaling invariance. Here we derive a model for the critical dynamics of this system, first for a symmetrically pumped resonator and then for the general case of asymmetric pumping conditions and self- and cross-phase modulation coefficients. This theory not only provides a detailed understanding of the dynamical response of critical-point-enhanced optical gyroscopes and near-field sensors, but is also applicable to nonlinear critical points in a wide range of systems.},
author = {Silver, Jonathan M. and Grattan, Kenneth T. and Del'Haye, Pascal},
doi = {10.1103/PhysRevA.104.043511},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2021-10-29},
peerreviewed = {Yes},
title = {{Critical} dynamics of an asymmetrically bidirectionally pumped optical microresonator},
volume = {104},
year = {2021}
}
@article{faucris.249345151,
abstract = {We report the first, to the best of our knowledge, observation of cross-phase modulational instability (XPMI) of circularly polarized helical Bloch modes carrying optical vortices in a twisted photonic crystal fiber with a three-fold symmetric core, formed by spinning the fiber preform during the draw. When the fiber is pumped by a superposition of left-circular polarization (LCP) and right-circular polarization (RCP) modes, a pair of orthogonal circularly polarized sidebands of opposite topological charge is generated. When, on the other hand, a pure LCP (or RCP) mode is launched, the XPMI gain is zero, and no sidebands are seen. This observation has not been seen before in any system and is unique to chiral structures with N-fold rotational symmetry. The polarization state and topological charge of the generated sidebands are measured. By decomposing the helical Bloch modes into their azimuthal harmonics, we are able to deduce the selection rules for the appearance of modulational instability sidebands. We showed that the four waves in the nonlinear mixing process must exhibit the same set of azimuthal harmonic orders. (C) 2021 Optical Society of America},
author = {Roth, Paul and Frosz, Michael H. and Weise, Linda and Russell, Philip St. John and Wong, Gordon K. L.},
doi = {10.1364/OL.413557},
faupublication = {yes},
journal = {Optics Letters},
month = {Jan},
note = {CRIS-Team WoS Importer:2021-02-12},
pages = {174-177},
peerreviewed = {Yes},
title = {{Cross}-phase modulational instability of circularly polarized helical {Bloch} modes carrying optical vortices in a chiral three-core photonic crystal fiber},
volume = {46},
year = {2021}
}
@inproceedings{faucris.259939559,
address = {NEW YORK},
author = {Wong, Gordon K. L. and Roth, Paul and Frosz, Michael H. and Russell, Philip St. John},
booktitle = {2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)},
doi = {10.1364/CLEOPR.2020.C8B{\_}3},
faupublication = {yes},
month = {Jan},
note = {CRIS-Team WoS Importer:2021-06-11},
peerreviewed = {unknown},
publisher = {IEEE},
title = {{Cross}-phase {Modulational} {Instability} of {Vortex} {Modes} in a {Twisted} {Three}-{Core} {Photonic} {Crystal} {Fibre}},
year = {2020}
}
@article{faucris.271372244,
abstract = {Diffusion of species on biological membranes or materials interfaces is expected to slow down with an increase in their density, but also due to their intermittent binding to functional moieties or surface-defects. These processes, known as crowding and trapping, respectively, occur simultaneously in a broad range of interfacial systems. However their combined effect on the diffusion coefficients was not studied hitherto. Here, we analytically calculate and numerically validate by Monte Carlo simulations an expression for the diffusion coefficient of a two-dimensional lattice gas in a field of immobilized traps. As expected, trapping and crowding both suppress transport but, surprisingly, the diffusion coefficient is non-monotonous. Namely, increasing gas densities increases trap occupancy while crowding is not overpowering, such that the diffusion reaches a maximum. These results should be relevant to interfacial growth phenomena, as discussed in the context of nascent adhesions in cells.},
author = {Cvitković, Mislav and Ghanti, Dipanwita and Raake, Niklas and Smith, Ana Sunčana},
doi = {10.1140/epjp/s13360-022-02571-4},
faupublication = {yes},
journal = {European Physical Journal Plus},
note = {CRIS-Team Scopus Importer:2022-03-25},
peerreviewed = {unknown},
title = {{Crowding} competes with trapping to enhance interfacial diffusion},
volume = {137},
year = {2022}
}
@article{faucris.213274275,
abstract = {We introduce Cryogenic Optical Localization in 3D (COLD), a method to localize multiple fluorescent sites within a single small protein with Angstrom resolution. We demonstrate COLD by determining the conformational state of the cytosolic Per-ARNT-Sim domain from the histidine kinase CitA of Geobacillus thermodenitrificans and resolving the four biotin sites of streptavidin. COLD provides quantitative 3D information about small- to medium-sized biomolecules on the Angstrom scale and complements other techniques in structural biology.},
author = {Weisenburger, Siegfried and Boening, Daniel and Schomburg, Benjamin and Giller, Karin and Becker, Stefan and Griesinger, Christian and Sandoghdar, Vahid},
doi = {10.1038/nmeth.4141},
faupublication = {yes},
journal = {Nature methods},
note = {EAM Import::2019-03-13},
pages = {141-144},
peerreviewed = {unknown},
title = {{Cryogenic} optical localization provides {3D} protein structure data with {Angstrom} resolution},
volume = {14},
year = {2017}
}
@article{faucris.269464660,
abstract = {Dissipative Kerr solitons in microresonators have facilitated the development of fully coherent, chipscale frequency combs. In addition, dark soliton pulses have been observed in microresonators in the normal dispersion regime. Here, we report bound states of mutually trapped dark-bright soliton pairs in a microresonator. The soliton pairs are generated seeding two modes with opposite dispersion but with similar group velocities. One laser operating in the anomalous dispersion regime generates a bright soliton microcomb, while the other laser in the normal dispersion regime creates a dark soliton via Kerr-induced cross-phase modulation with the bright soliton. Numerical simulations agree well with experimental results and reveal a novel mechanism to generate dark soliton pulses. The trapping of dark and bright solitons can lead to light states with the intriguing property of constant output power while spectrally resembling a frequency comb. These results can be of interest for telecommunication systems, frequency comb applications, and ultrafast optics.},
author = {Zhang, Shuangyou and Bi, Toby and Ghalanos, George N. and Moroney, Niall P. and Del Bino, Leonardo and Del'Haye, Pascal},
doi = {10.1103/PhysRevLett.128.033901},
faupublication = {yes},
journal = {Physical Review Letters},
month = {Jan},
note = {CRIS-Team WoS Importer:2022-02-11},
peerreviewed = {Yes},
title = {{Dark}-{Bright} {Soliton} {Bound} {States} in a {Microresonator}},
volume = {128},
year = {2022}
}
@article{faucris.276876723,
abstract = {Cryogenic optical localization in three dimensions (COLD) was recently shown to resolve up to four binding sites on a single protein. However, because COLD relies on intensity fluctuations that result from the blinking behavior of fluorophores, it is limited to cases where individual emitters show different brightness. This significantly lowers the measurement yield. To extend the number of resolved sites as well as the measurement yield, we employ partial labeling and combine it with polarization encoding in order to identify single fluorophores during their stochastic blinking. We then use a particle classification scheme to identify and resolve heterogenous subsets and combine them to reconstruct the three-dimensional arrangement of large molecular complexes. We showcase this method (polarCOLD) by resolving the trimer arrangement of proliferating cell nuclear antigen (PCNA) and six different sites of the hexamer protein Caseinolytic Peptidase B (ClpB) of Thermus thermophilus in its quaternary structure, both with Angstrom resolution. The combination of polarCOLD and single-particle cryogenic electron microscopy (cryoEM) promises to provide crucial insight into intrinsic heterogeneities of biomolecular structures. Furthermore, our approach is fully compatible with fluorescent protein labeling and can, thus, be used in a wide range of studies in cell and membrane biology.},
author = {Mazal, Hisham and Wieser, Franz-Ferdinand and Sandoghdar, Vahid},
doi = {10.7554/eLife.76308},
faupublication = {yes},
journal = {eLife},
note = {CRIS-Team WoS Importer:2022-06-17},
peerreviewed = {Yes},
title = {{Deciphering} a hexameric protein complex with {Angstrom} optical resolution},
volume = {11},
year = {2022}
}
@article{faucris.114058164,
abstract = {Silica-based photonic crystal fibre has proven highly successful for supercontinuum generation, with smooth and flat spectral power densities. However, fused silica glass suffers from strong material absorption in the mid-infrared (>2,500 nm), as well as ultraviolet-related optical damage (solarization), which limits performance and lifetime in the ultraviolet (<380 nm). Supercontinuum generation in silica photonic crystal fibre is therefore only possible between these limits. A number of alternative glasses have been used to extend the mid-infrared performance, including chalcogenides, fluorides and heavy-metal oxides, but none has extended the ultraviolet performance. Here, we describe the successful fabrication (using the stack-and-draw technique) of a ZBLAN photonic crystal fibre with a high air-filling fraction, a small solid core, nanoscale features and near-perfect structure. We also report its use in the generation of ultrabroadband, long-term stable, supercontinua spanning more than three octaves in the spectral range 200-2,500 nm.},
author = {Jiang, Xin and Joly, Nicolas and Finger, Martin A. and Babic, Fehim and Wong, Gordon K. L. and Travers, John C. and Russell, Philip St. John},
doi = {10.1038/NPHOTON.2014.320},
faupublication = {yes},
journal = {Nature Photonics},
pages = {133-139},
peerreviewed = {Yes},
title = {{Deep}-ultraviolet to mid-infrared supercontinuum generated in solid-core {ZBLAN} photonic crystal fibre},
volume = {9},
year = {2015}
}
@article{faucris.264050967,
abstract = {We present the use of a linearly down-tapered gas-filled hollow-core photonic crystal fiber in a single stage, pumped with pulses froma compact infrared (IR) laser source, to generate a supercontinuum (SC) carrying significant spectral power in the deep ultraviolet (UV) [200-300 nm]. The generated SC extends from the near IR down to ~213 nm with 0.58 mW/nm and down to ~220 nm with 0.83 mW/nm in the deepUV.},
author = {Suresh, Mallika Irene and Hammer, Jonas and Joly, Nicolas and Russell, Philip St. John and Tani, Francesco},
doi = {10.1364/OL.435697},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2021-09-17},
pages = {4526-4529},
peerreviewed = {Yes},
title = {{Deep}-{UV}-enhanced supercontinuum generated in a tapered gas-filled photonic crystal fiber},
volume = {46},
year = {2021}
}
@article{faucris.122219284,
abstract = {We discuss the inspection of large-sized, spherical mirror tiles by 'Phase Measuring Deflectometry' (PMD). About 10 000 of such mirror tiles, each satisfying strict requirements regarding the spatial extent of the point-spreadfunction (PSF), are planned to be installed on the Cherenkov Telescope Array (CTA), a future ground-based instrument to observe the sky in very high energy gamma-rays. Owing to their large radii of curvature of up to 60 m, a direct PSF measurement of these mirrors with concentric geometry requires large space. We present a PMD sensor with a footprint of only 5 ?2 ?1.2 m3 that overcomes this limitation. The sensor intrinsically acquires the surface slope; the shape data are calculated by integration. In this way, the PSF can be calculated for real case scenarios, e.g., when the light source is close to infinity and off-axis. The major challenge is the calibration of the PMD sensor, specifically because the PSF data have to be reconstructed from different camera views. The calibration of the setup is described, and measurements presented and compared to results obtained with the direct approach.},
author = {Olesch, Evelyn and Häusler, Gerd and Wörnlein, André and Stinzing, Friedrich and van Eldik, Christopher},
doi = {10.1515/aot-2014-0023},
faupublication = {yes},
journal = {Advanced Optical Technologies},
keywords = {3D-metrology; Deflectometry; Interferometry; Optical testing; Telescope},
pages = {335-343},
peerreviewed = {Yes},
title = {{Deflectometric} measurement of large mirrors},
volume = {3},
year = {2014}
}
@article{faucris.110311564,
abstract = {The diffusive growth rate of a polyhedral cell in dry three-dimensional foams depends on details of shape beyond cell topology, in contrast to the situation in two dimensions, where, by von Neumann's law, the growth rate depends only on the number of cell edges. We analyze the dependence of the instantaneous growth rate on the shape of single foam cells surrounded by uniform pressure; this is accomplished by supporting the cell with films connected to a wire frame and inducing cell distortions by deforming the wire frame. We consider three foam cells with a very simple topology; these are the Platonic foam cells, which satisfy Plateau's laws and are based on the trivalent Platonic solids (tetrahedron, cube, and dodecahedron). The Surface Evolver is used to model cell deformations induced through extension, compression, shear, and torsion of the wire frames. The growth rate depends on the deformation mode and frame size and can increase or decrease with increasing cell distortion. The cells have negative growth rates, in general, but dodecahedral cells subjected to torsion in small wire frames can have positive growth rates. The deformation of cubic cells is demonstrated experimentally.},
author = {Evans, Myfanwy and Zirkelbach, Johannes and Schröder-Turk, Gerd and Kraynik, Andrew M. and Mecke, Klaus},
doi = {10.1103/PhysRevE.85.061401},
faupublication = {yes},
journal = {Physical Review E},
peerreviewed = {Yes},
title = {{Deformation} of {Platonic} foam cells: {Effect} on growth rate},
volume = {85},
year = {2012}
}
@article{faucris.121358644,
abstract = {We present an experiment for education which demonstrates random transmission or reflection of heralded single photons on beam splitters. With our set-up, we can realize different quantum random experiments by appropriate settings of polarization rotators. The concept of entanglement is motivated by correlated randomness. The experiments are suitable for undergraduate education and are available as interactive screen experiments. © 2009 IOP Publishing Ltd.},
author = {Bronner, Patrick and Strunz, Andreas and Silberhorn, Christine and Meyn, Jan-Peter},
doi = {10.1088/0143-0807/30/5/026},
faupublication = {yes},
journal = {European Journal of Physics},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.PI.PDP.demons},
pages = {1189-1200},
peerreviewed = {Yes},
title = {{Demonstrating} quantum random with single photons},
url = {http://stacks.iop.org/0143-0807/30/1189},
volume = {30},
year = {2009}
}
@inproceedings{faucris.276460790,
abstract = {We demonstrate and discuss a state of light with purely transverse angular momentum - a photonic wheel - generated by tight focusing of polarization tailored light. We use an experimental nanoprobing technique to measure the corresponding distribution.},
author = {Banzer, Peter and Neugebauer, Martin and Aiello, Andrea and Marquardt, Christoph and Lindlein, Norbert and Bauer, Thomas and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2013-06-17/2013-06-20},
doi = {10.1364/CQO.2013.T2A.1},
faupublication = {yes},
isbn = {9781557529787},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Demonstration} of a state of light with purely transverse angular momentum},
venue = {USA},
year = {2013}
}
@article{faucris.111443464,
abstract = {The optimal discrimination of nonorthogonal quantum states with minimum error probability is a fundamental task in quantum measurement theory as well as an important primitive in optical communication. In this work, we propose and experimentally realize a new and simple quantum measurement strategy capable of discriminating two coherent states with smaller error probabilities than can be obtained using the standard measurement devices: the Kennedy receiver and the homodyne receiver. © 2008 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Wittmann Christoffer, Takeoka Masahiro, Cassemiro Katiuscia, Sasaki Masahide, Leuchs Gerd, Andersen Ulrik L.},
doi = {10.1103/PhysRevLett.101.210501},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2008.nat.dphy.optik.1optik.demons},
pages = {210501},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Demonstration} of {Near}-{Optimal} {Discrimination} of {Optical} {Coherent} {States}},
volume = {101},
year = {2008}
}
@article{faucris.123160664,
author = {Leuchs, Gerd and et al.},
author_hint = {Huntington E., Milford G. N., Robilliard C. , Ralph T. C., Glöckl Oliver, Andersen Ulrik, Lorenz Stefan, Leuchs Gerd},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.demons},
pages = {041802},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Demonstration} of the spatial separation of the entangled quantum side-bands of an optical field},
volume = {71},
year = {2005}
}
@article{faucris.260825983,
abstract = {By performing quantum-noise-limited optical heterodyne detection, we observe polarization noise in light after propagation through a hollow-core photonic crystal fiber (PCF). We compare the noise spectrum to the one of a standard fiber and find an increase of noise even though the light is mainly transmitted in air in a hollow-core PCF. Combined with our simulation of the acoustic vibrational modes in the hollow-core PCF, we are offering an explanation for the polarization noise with a variation of guided acoustic wave Brillouin scattering (GAWBS). Here, instead of modulating the strain in the fiber core as in a solid core fiber, the acoustic vibrations in hollow-core PCF influence the effective refractive index by modulating the geometry of the photonic crystal structure. This induces polarization noise in the light guided by the photonic crystal structure.},
author = {Zhong, Wenjia and Stiller, Birgit and Elser, Dominique Alexander and Heim, Bettina and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OE.23.027707},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2021-06-29},
pages = {27707-27714},
peerreviewed = {Yes},
title = {{Depolarized} guided acoustic wave {Brillouin} scattering in hollow-core photonic crystal fibers},
volume = {23},
year = {2015}
}
@inproceedings{faucris.108479184,
author = {Ghadyani, Zahra and Harder, Irina and Rusina, Olga and Iff, Wolfgang and Nercissian, Vanusch and Mantel, Klaus Peter and Lindlein, Norbert and Leuchs, Gerd},
booktitle = {Proceedings of the EOS Topical Meeting on Diffractive Optics 2010},
faupublication = {yes},
peerreviewed = {No},
title = {{Design} and fabrication of nanowire metal grating polarizers for a shearing interferometer using polarization marking},
volume = {ISBN 978-3-00-024193-2},
year = {2010}
}
@article{faucris.119960104,
abstract = {The design and modeling of micro-optical systems is still a challenging task because classical methods like ray tracing do not take into account diffraction effects and other coherent effects which appear e.g. in the presence of micro-optical array systems. On the other side, there exist scalar or rigorous diffraction theories to model optical systems. But they are also limited in their applications because they either neglect non-paraxial effects or the calculation time is too high for a practical use. In this paper we will therefore give an overview about existing (scalar) theories to model optical systems, especially systems containing micro-optics: a simple paraxial matrix theory, ray tracing, Gaussian beam propagation and the propagation of a wave using the angular spectrum of plane waves. The advantages and disadvantages of these theories will be shown and compared. At the end we will describe a combination of ray tracing and wave propagation methods to give a more realistic simulation of micro-optical systems.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Herzig H.P.},
doi = {10.1117/12.448143},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {Angular spectrum of plane waves; Diffraction theories; Gaussian beams; Micro-optics; Modeling of optical systems; Optical design; Ray tracing},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.design},
pages = {1-13},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Design} and modeling of a miniature system containing micro-optics},
volume = {4437},
year = {2001}
}
@inproceedings{faucris.108445304,
abstract = {The printing process of polymer optical waveguides is a new and uncharted research topic, which the research group OPTAVER is principally involved in. A main consequence of the printing process is the roughness of the interface between core and cladding. This surface between the dielectric media creates scattering in printed waveguides. To simulate this behaviour, standard non-sequential raytracing methods have to be extended with scattering algorithms. Here, scattering power spectra for each incident ray interacting with the rough surface are generated using the perturbation theory. Another task is to connect MID-specific CAD tools with raytracing simulations to create a holistic tool for design and validation of light propagation. This tool is specifically prepared to analyze the manufacturing process of polymer optical waveguides. This technique facilitates new applications in different research and development fields. Comparing the performances of real printed and simulated polymer optical waveguides is one of the major links between the different researchers of this DFG research group.},
author = {Loosen, Florian and Backhaus, Carsten and Lindlein, Norbert and Zeitler, Jochen Tobias and Franke, Jörg},
booktitle = {Proceeding, 117. DGaO-Jahrestagung},
faupublication = {yes},
keywords = {Optisches Design, Optische Systeme, Optische Informationsübertragung},
peerreviewed = {unknown},
publisher = {DGaO},
title = {{Design} and simulation rules for printed optical waveguides with implemented scattering methods in {CAD} and raytracing software},
venue = {Hannover},
year = {2016}
}
@article{faucris.121016984,
abstract = {Aspheric optical surfaces are often tested using diffractive optics as null elements. For precise measurements, the errors caused by the diffractive optical element must be calibrated. Recently, we reported first experimental results of a three position quasi-absolute test for rotationally invariant aspherics by using combined-diffractive optical elements (combo-DOEs). Here we investigate the effects of the DOE substrate errors on the proposed calibration procedure and present a set of criteria for designing an optimized combo-DOE. It is demonstrated that this optimized design enhances the overall consistency of the procedure. Furthermore, the rotationally varying part of the surface deviations is compared with the rotationally varying deviations obtained by an N-position averaging procedure and is found to be in good agreement. © 2007 Optical Society of America.},
author = {Lindlein, Norbert and Schwider, Johannes and Harder, Irina and Mantel, Klaus Peter and Khan, Gufran S.},
doi = {10.1364/AO.46.007040},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-04-14:Pub.2007.nat.dphy.optik.1optik.design{\_}9},
pages = {7040-7048},
peerreviewed = {unknown},
title = {{Design} considerations for the absolute testing approach of aspherics using combined diffractive optical elements},
volume = {46},
year = {2007}
}
@inproceedings{faucris.121530464,
abstract = {Recently, we reported first experimental results of a three position quasi-absolute test for rotationally symmetric aspherics by using combined diffractive optical elements (Combo-DOEs). Here we investigate several systematic error sources and present an optimised Combo-DOE. © 2007 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Khan G., Mantel K., Harder I., Lindlein N., Schwider J.},
booktitle = {Frontiers in Optics, FiO 2007},
faupublication = {yes},
isbn = {9781557528469},
peerreviewed = {unknown},
publisher = {Optical Society of America},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Design} criteria for combined diffractive optical elements for quasi-absolute testing of aspherics},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84899062888&origin=inward},
venue = {San Jose, CA},
year = {2007}
}
@article{faucris.120776744,
abstract = {In this article, we describe how to develop a mode converter that transforms a plane electromagnetic wave into an inward-moving dipole wave. The latter one is intended to bring a single atom or ion from its ground state to an excited state by absorption of a single photon wave packet with near-100% efficiency. © 2007 Springer-Verlag.},
author = {Sondermann, Markus and Maiwald, Robert and Konermann, Hildegard and Lindlein, Norbert and Peschel, Ulf and Leuchs, Gerd},
doi = {10.1007/s00340-007-2859-4},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.design},
pages = {489-492},
peerreviewed = {Yes},
title = {{Design} of a mode converter for efficient light-atom coupling in free space},
volume = {89},
year = {2007}
}
@inproceedings{faucris.106322304,
abstract = {Modale Wellenfrontsensoren können gegenüber einer zonalen Wellenfrontdetektion von Vorteil sein. Etwa, wenn in einem optischen Element fabrikationsbedingt nur spezielle Aberrationsmoden zu erwarten sind. Der Hauptvorteil eines modalen Sensors ist die geringe Auswertekomplexität und folglich ein Geschwindigkeitsvorteil bei der Wellenfrontmessung. Als modale Basis können die Zernike-Polynome dienen, deren Koeffizienten durch Messung der Phasenfront bestimmt werden können. Sind die zu erwartenden Aberrationen für ein optisches Element bekannt, kann die Funktionsweise diesbezüglich optimiert werden. Unser Ziel ist es, einen Wellenfrontsensor auf Basis eines Computer-Generierten Hologramms zu realisieren (Neil et al. 2000). Das Prinzip des Sensors basiert auf der holografischen Rekonstruktion einer ebenen Objektwelle durch eine spezifisch aberrierte Referenzwellenfront. Wir werden die quantitative Untersuchung des intermodalen Crosstalks eines modalen Wellenfrontsensors präsentieren, welcher zur genauen Messung von Defokus und Koma ausgelegt ist. Die Charakterisierung des intermodalen Crosstalks ist dabei notwendig, um ein möglichst effizientes und genaues Sensorverhalten zu erzielen.},
author = {Stehr, Johannes and Loosen, Florian and Lindlein, Norbert and Alber, Lucas},
booktitle = {118. DGaO-Jahrestagung},
editor = {DGaO},
faupublication = {yes},
title = {{Design} und {Herstellung} eines {CGH}-basierten {Modalen} {Wellenfrontsensors}},
venue = {Dresden},
year = {2017}
}
@article{faucris.276450869,
abstract = {We present the quantum theory of direct detection of bosonic particles by multipixel detectors. For the sake of clarity, we specialize on beams of photons, and we study the measurement of different spatial beam characteristics, as position and width. The limits of these measurements are set by the quantum nature of the light field. We investigate how both, detector imperfections and finite pixel size affect the photon counting distribution. An analytic theory for the discretized detection setup is derived. We discuss the results and compare them to the theory presented by Chille et al 2015 Opt. Express 23 32777, which investigates the beam width noise independently of the measurement system. Finally, we present numerical simulations that furnish realistic and promising predictions for possible experimental studies.},
author = {Chille, Vanessa and Treps, Nicolas and Fabre, Claude and Leuchs, Gerd and Marquardt, Christoph and Aiello, Andrea},
doi = {10.1088/1367-2630/18/9/093004},
faupublication = {yes},
journal = {New Journal of Physics},
keywords = {bosonic systems; quantum uncertainty; spatial measurements},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Detecting} the spatial quantum uncertainty of bosonic systems},
volume = {18},
year = {2016}
}
@article{faucris.265187698,
abstract = {The efficient certification of nonclassical effects of light forms the basis for applications in optical quantum technologies. We derive general correlation conditions for the verification of nonclassical light based on multiplexed detection. The obtained nonclassicality criteria are valid for imperfectly balanced multiplexing scenarios with on-off detectors and do not require any knowledge about the detector system. In this sense, they are fully independent of the detector system. In our experiment, we study light emitted by clusters of single-photon emitters, whose photon number may exceed the number of detection channels. Even under such conditions, our criteria certify nonclassicality with high statistical significance.},
author = {Bohmann, Martin and Qi, Luo and Vogel, Werner and Chekhova, Maria},
doi = {10.1103/PhysRevResearch.1.033178},
faupublication = {yes},
journal = {Physical Review Research},
note = {CRIS-Team WoS Importer:2021-10-18},
peerreviewed = {Yes},
title = {{Detection}-device-independent verification of nonclassical light},
volume = {1},
year = {2019}
}
@article{faucris.276467417,
abstract = {Characterizing the physical channel and calibrating the cryptosystem hardware are prerequisites for establishing a quantum channel for quantum key distribution (QKD). Moreover, an inappropriately implemented calibration routine can open a fatal security loophole. We propose and experimentally demonstrate a method to induce a large temporal detector efficiency mismatch in a commercial QKD system by deceiving a channel length calibration routine. We then devise an optimal and realistic strategy using faked states to break the security of the cryptosystem. A fix for this loophole is also suggested. © 2011 American Physical Society.},
author = {Jain, Nitin and Wittmann, Christoffer and Lydersen, Lars and Wiechers, Carlos and Elser, Dominique Alexander and Marquardt, Christoph and Makarov, Vadim and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.107.110501},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Device} {Calibration} {Impacts} {Security} of {Quantum} {Key} {Distribution}},
volume = {107},
year = {2011}
}
@inproceedings{faucris.294167495,
abstract = {We show that Hanbury Brown and Twiss intensity interference and Dicke superradiance can be considered as two sides of the same coin, resulting from multi-photon interferences appearing in higher order photon correlations.},
author = {Wiegner, Ralph and Oppel, Steffen and Bhatti, Daniel and Agarwal, Girish S. and von Zanthier, Joachim},
booktitle = {Optics InfoBase Conference Papers},
date = {2017-04-05/2017-04-07},
doi = {10.1364/QIM.2017.QT6A.42},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2023-03-27},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Dicke} superradiance and hanbury brown and twiss intensity interference: {Two} sides of the same coin},
venue = {Paris, FRA},
volume = {Part F73-QIM 2017},
year = {2017}
}
@article{faucris.120899064,
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Richter H.J.},
faupublication = {yes},
journal = {LaserOpto},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.dieopt},
pages = {24},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Die} {Optik} - eine physikalische {Disziplin} im {Aufwind} bietet {Chancen} für {Deutschland}},
year = {1999}
}
@article{faucris.246704446,
abstract = {Fusion of biological membranes, although mediated by divergent proteins, is believed to follow a common pathway. It proceeds through distinct steps, including docking, merger of proximal leaflets (stalk formation), and formation of a fusion pore. However, the structure of these intermediates is difficult to study because of their short lifetime. Previously, we observed a loosely and tightly docked state preceding leaflet merger using arresting point mutations in SNARE proteins, but the nature of these states remained elusive. Here, we used interferometric scattering (iSCAT) microscopy to monitor diffusion of single vesicles across the surface of giant unilamellar vesicles (GUVs). We observed that the diffusion coefficients of arrested vesicles decreased during progression through the intermediate states. Modeling allowed for predicting the number of tethering SNARE complexes upon loose docking and the size of the interacting membrane patches upon tight docking. These results shed new light on the nature of membrane-membrane interactions immediately before fusion.},
author = {Witkowska, Agata and Spindler, Susann and Mahmoodabadi, Reza Gholami and Sandoghdar, Vahid and Jahn, Reinhard},
doi = {10.1016/j.bpj.2020.10.033},
faupublication = {yes},
journal = {Biophysical Journal},
note = {CRIS-Team Scopus Importer:2020-12-11},
peerreviewed = {Yes},
title = {{Differential} {Diffusional} {Properties} in {Loose} and {Tight} {Docking} {Prior} to {Membrane} {Fusion}},
year = {2020}
}
@inproceedings{faucris.121531124,
abstract = {Analyzing intensity distributions is of great importance for today's illumination systems design. Contrary to Monte-Carlo techniques, differential ray tracing possesses great potential to improve simulation efficiency by reducing computational time while concurrently showing accurate results. © 2008 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Stolz O., Lindlein N.},
booktitle = {Frontiers in Optics, FiO 2008},
faupublication = {yes},
isbn = {9781557528612},
peerreviewed = {unknown},
publisher = {Optical Society of America},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Differential} ray tracing for an improved simulation of incoherent illumination systems},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84898606278&origin=inward},
venue = {Rochester, NY},
year = {2008}
}
@article{faucris.266485682,
abstract = {Dicke superradiance, i.e., the enhanced spontaneous emission of coherent radiation, is often attributed to radiation emitted by synchronized dipoles coherently oscillating in phase. At the same time, Dicke derived superradiance assuming atoms in entangled Dicke states which do not display any dipole moment. To shed light on this apparent paradox, we study the intensity distribution arising from two identical two-level atoms prepared either in an entangled Dicke state or in a separable atomic state with a nonvanishing dipole moment. We find that the two configurations produce similar far-field intensity patterns, although they stem from fundamentally distinct types of coherence: while in the second case the atoms display coherence among the individual particles, leading to Young-type interference like that known from classical dipoles, atoms in Dicke states possess collective quantum coherence stemming from entanglement and quantum correlations of the state, leading to an interference pattern resulting from enhanced spontaneous emission. This demonstrates that the radiation generated by synchronized dipoles and Dicke superradiance - even if they do produce the same interference pattern - are fundamentally distinct phenomena and have to be interpreted in different ways.},
author = {Bhatti, Daniel and Bojer, Manuel and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.104.052401},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2021-11-26},
peerreviewed = {Yes},
title = {{Different} types of coherence: {Young}-type interference versus {Dicke} superradiance},
volume = {104},
year = {2021}
}
@article{faucris.115406764,
abstract = {Holographic lenses in volume media suffer from the mismatch between the recording and the reconstruction wavelength. The lenses are recorded in the blue spectral range because of spectral sensitivity of the recording material. The lenses investigated here are reconstructed with red light. The aim of this work is the realization of diffraction-limited holographic lenses with a high diffraction efficiency in the presence of a wavelength mismatch. Therefore the lenses have to be recorded with at least one aspheric recording wavefront in order to fulfill the Bragg condition on the one hand and to correct the wave aberrations on the other. We propose an iterative optimization procedure which also eliminates the wave aberrations caused by the misalignments of the recording setup. This optimization procedure requires the accurate measurement of the wave aberrations. These aberrations are eliminated by an appropriate modification of the aspheric recording wavefront. In this paper the design principle, the recording setup, the interferometric measurement, and the iterative optimization procedure are given. This optimization procedure results in diffraction-limited holographic lenses. © 1996 Society of Photo-Optical Instrumentation Engineers.},
author = {Lindlein, Norbert and et al.},
author_hint = {Falkenstörfer O., Lindlein Norbert, Keinonen T., Schwider Johannes},
faupublication = {yes},
journal = {Optical Engineering},
keywords = {Dichromated gelatine; Holographic lenses; Holographic optical elements; Thick phase gratings; Wave aberration; Wavelength mismatch},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.diffra},
pages = {2026-2033},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Diffraction} limited holographic lenses in dichromated gelatine},
volume = {35},
year = {1996}
}
@inproceedings{faucris.109332564,
author = {Harder, Irina and Nercissian, Vanusch and Schwider, Johannes and Berger, Andreas and Mantel, Klaus Peter and Lindlein, Norbert},
booktitle = {Proceedings of the EOS Topical Meeting on Diffractive Optics 2010},
faupublication = {yes},
peerreviewed = {No},
title = {{Diffractive} complete lateral shearing interferometer with reduced coherence},
volume = {ISBN 978-3-00-024193-2},
year = {2010}
}
@inproceedings{faucris.121533324,
abstract = {The physical limits of optical lithography are mainly determined by the aperture of the mask projection system and the wavelength of the light. In addition to the wavelength shift to the deep UV the application of special techniques to improve the processing window are required. This has furthered the application of the phase shift mask as a lithography tool. The generation of the exact intensity distribution needed in the plane of the wafer strongly depends on the accuracy of the phase shift introduced by the phase shift mask. However, one difficult issue is the reliable measurement of the phase shift introduced by the phase mask at the working wavelength. This is of course mainly due to the lack of suitable and simple interferometric devices for the deep-UV-region - here 193 nm. We propose the use of a diffractive shearing interferometer as a way out. By combining two Ronchi-phase gratings in series it is possible to produce shear and phase shifts for the evaluation of the fringe patterns simply by axial and lateral shifts of the phase gratings relative to each other. Since the excimer laser emits spatially partial coherent light only, the coherence issue is one of the physical problems dealt with. The state of the art of our experiments will be presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Schwider J., Fütterer G., Lindlein N.},
booktitle = {Eighth International Symposium on Laser Metrology},
doi = {10.1117/12.611690},
editor = {Rodriguez-Vera R.; Mendoza-Santoyo F.},
faupublication = {yes},
pages = {270-277},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Diffractive} lateral shearing interferometer for phase shift mask measurement using an excimer laser source},
venue = {Merida, Yucatan},
volume = {5776},
year = {2005}
}
@article{faucris.108488424,
author = {Nercissian, Vanusch and Harder, Irina and Mantel, Klaus Peter and Berger, Andreas and Leuchs, Gerd and Lindlein, Norbert and Schwider, Johannes},
faupublication = {yes},
journal = {Applied Optics},
pages = {571--578},
peerreviewed = {Yes},
title = {{Diffractive} simultaneous bidirectional shearing interferometry using tailored spatially coherent light},
volume = {50},
year = {2011}
}
@inproceedings{faucris.121533764,
abstract = {A lateral shearing interferometer usually provides the slope data of a wave front under test along one direction. For the complete reconstruction of the wavefront, two slope datasets along different directions are required. Based on diffractive gratings, a simultaneous measurement of bothdata sets can be carried out. Two possible realizations are presented using a polarization signature and a partially coherent light source. © 2011 SPIE.},
author = {Lindlein, Norbert and et al.},
author_hint = {Nercissian V., Harder I., Mantel K., Berger A., Lindlein N.},
booktitle = {Optical Measurement Systems for Industrial Inspection VII},
doi = {10.1117/12.895004},
faupublication = {yes},
isbn = {9780819486783},
keywords = {Diffraction gratings; Interferometry; Spatial coherence},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Diffractive} simultaneous lateral shearing interferometry},
venue = {Munich},
volume = {8082},
year = {2011}
}
@incollection{faucris.123188384,
address = {Oxford},
author = {Lindlein, Norbert},
booktitle = {Encyclopedia of Modern Optics},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2004.nat.dphy.optik.1optik.diffra},
pages = {-},
peerreviewed = {unknown},
publisher = {Elsevier},
title = {{Diffractive} {Systems}: {Aberration} {Correction} with {Diffractive} {Elements}},
year = {2004}
}
@misc{faucris.124024824,
author = {Schwider, Johannes and Dresel, Thomas and Beyerlein, Mathias and Harder, Irina and Lindlein, Norbert and Collischon, Martin and Leuchs, Gerd},
faupublication = {yes},
note = {UnivIS-Import:2015-04-14:Pub.2001.nat.dphy.optik.1optik.diffra},
peerreviewed = {automatic},
title = {{Diffraktive} optische {Elemente} zur {Lichtmanipulation}},
year = {2001}
}
@inproceedings{faucris.119971104,
author = {Nercissian, Vanusch and Mantel, Klaus and Harder, Irina and Berger, Andreas and Schwider, Johannes and Lindlein, Norbert},
booktitle = {DGaO-Proceedings},
faupublication = {yes},
pages = {A17},
peerreviewed = {No},
title = {{Diffraktives} {2D}-{Shearing}-{Interferometer} mit partieller {rÃa4umlicher} {KohÃa4renz}},
year = {2010}
}
@incollection{faucris.118897944,
address = {Boston-Dordrecht-London},
author = {Häusler, Gerd and et al.},
author_hint = {Karbacher St., Schön Nikolaus, Schönfelder H., Häusler Gerd},
booktitle = {Principles of 3D Image Analysis andSynthesis},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2000.nat.dphy.optik.1optik.digiti},
pages = {336-347},
peerreviewed = {Yes},
publisher = {Kluwer Academic Publishers},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Digitizing} {3D} objects for {Reverse} {Engineering} and {Virtual} {Reality}},
year = {2000}
}
@article{faucris.319229284,
abstract = {We present schemes for the generation and evaluation of continuous variable entanglement of bright optical beams and give a brief overview of a variety of optical techniques and quantum communication applications on this basis. A new entanglement-based quantum interferometry scheme with bright beams is suggested. The performance of the presented schemes is independent of the relative interference phase which is advantageous for quantum communication applications.
= 2 distant quantum sources in free space, i.e., the spatial emission patterns of spontaneously radiating noninteracting multilevel atoms or multiphoton sources, prepared in totally antisymmetric states. We find that the radiated intensity is marked by a full suppression of spontaneous emission in particular directions. In resemblance to the analogous, yet inverted, superradiant emission profiles of N distant two-level atoms prepared in symmetric Dicke states, we call the corresponding emission patterns directional Dicke subradiance. We further derive that higher-order intensity correlations of the light emitted by statistically independent thermal light sources display the same directional Dicke subradiant behavior and show that it stems from the same interference phenomenon as in the case of quantum sources. We finally present measurements of directional Dicke subradiance for N = 2,...,5 distant thermal light sources corroborating the theoretical finding},
author = {Bhatti, Daniel and Schneider, Raimund and Oppel, Steffen and von Zanthier, Joachim},
doi = {10.1103/PhysRevLett.120.113603},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Directional} {Dicke} {Subradiance} with {Nonclassical} and {Classical} {Light} {Sources}},
volume = {120},
year = {2018}
}
@article{faucris.121734844,
abstract = {Superradiance has been an outstanding problem in quantum optics since Dicke introduced the concept of enhanced directional spontaneous emission by an ensemble of identical two-level atoms. The effect is based on the correlated collective Dicke states which turn out to be highly entangled. Here we show that enhanced directional emission of spontaneous radiation can be produced also with statistically independent incoherent sources, via the measurement of higher-order correlation functions of the emitted radiation. Our analysis is applicable to a wide variety of quantum emitters, like trapped atoms, ions, quantum dots, or nitrogen-vacancy centers, and is also valid for incoherent classical emitters. This is experimentally confirmed with up to eight statistically independent thermal light sources. The arrangement to measure the higher-order correlation functions corresponds to a generalized Hanbury Brown-Twiss setup, demonstrating that the two phenomena, superradiance and the Hanbury Brown-Twiss effect, stem from the same interference phenomeno},
author = {Oppel, Steffen and Wiegner, Ralph and Agarwal, Girish Saran and von Zanthier, Joachim},
doi = {10.1103/PhysRevLett.113.263606},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Directional} {Superradiant} {Emission} from {Statistically} {Independent} {Incoherent} {Nonclassical} and {Classical} {Sources}},
volume = {113},
year = {2014}
}
@article{faucris.240766294,
abstract = {We present a direct measurement of the spatiotemporal coherence of parametric down-conversion in the range of negative group-velocity dispersion. In this case, the frequency-angular spectra are ring-shaped, and temporal coherence is coupled to spatial coherence. Correspondingly, the lack of coherence due to spatial displacement can be compensated for with the introduction of time delay. We show a simple technique, based on a modified Mach-Zehnder interferometer, which allows us to measure time coherence and near-field space coherence simultaneously, with complete control over both variables. This technique is also suitable for the measurement of second-order coherence, where the main applications are related to two-photon spectroscopy.},
author = {Cutipa Giménez, Paula and Spasibko, Kirill Yu and Chekhova, Maria},
doi = {10.1364/OL.397700},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2020-07-24},
pages = {3581-3584},
peerreviewed = {Yes},
title = {{Direct} measurement of the coupled spatiotemporal coherence of parametric down-conversion under negative group-velocity dispersion},
volume = {45},
year = {2020}
}
@inproceedings{faucris.109257324,
abstract = {We experimentally demonstrate a recently predicted novel beam shift phenomenon, the geometric spin Hall effect of light. This effect is fundamentally different from ordinary beam shifts due to its purely geometric nature. © OSA 201},
author = {Korger, Jan and Aiello, Andrea and Chille, Vanessa and Wittmann, Christoffer and Banzer, Peter and Lindlein, Norbert and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Frontiers in Optics, FIO 2012},
doi = {10.1364/FIO.2012.FTh1E.1},
faupublication = {yes},
isbn = {9781557529565},
peerreviewed = {unknown},
title = {{Direct} measurement of the geometric spin hall effect of light},
venue = {Rochester, NY},
year = {2012}
}
@article{faucris.108487984,
author = {Ghadyani, Zahra and Rothau, Sergej and Lindlein, Norbert and Leuchs, Gerd and Lohse, Olga and Harder, Irina},
faupublication = {yes},
journal = {Journal of the European Optical Society: Rapid Publications},
pages = {11041},
peerreviewed = {Yes},
title = {{Discontinuous} space variant sub-wavelength structures for generating radially polarized light in visible region},
url = {http://www.jeos.org/index.php/jeos{\_}rp/article/view/11041},
volume = {6},
year = {2011}
}
@inproceedings{faucris.255828571,
abstract = {Nature's limits are precious: they often reveal uncertainty products connecting coherence, resolution, precision, channel capacity… So we can bargain with nature for "optimal" 3D sensors with novel features or just better precision, resolution, speed.},
author = {Häusler, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2019-06-24/2019-06-27},
doi = {10.1364/COSI.2019.CM1A.CTh2A.1},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-04-20},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Discover} better optical sensors - {By} exploring and exploiting nature's limits},
venue = {Munich},
volume = {Part F170-COSI 2019},
year = {2019}
}
@article{faucris.112265604,
abstract = {The discrimination of non-orthogonal quantum states with reduced or without errors is a fundamental task in quantum measurement theory. In this work, we investigate a quantum measurement strategy capable of discriminating two coherent states probabilistically with significantly smaller error probabilities than can be obtained using non-probabilistic state discrimination. We find that appropriate postselection of the measurement data of a photon number resolving detector can be used to discriminate two coherent states with small error probability. We compare our new receiver to an optimal intermediate measurement between minimum error discrimination and unambiguous state discrimination.},
author = {Wittmann, Christoffer and Andersen, Ulrik Lund and Leuchs, Gerd},
doi = {10.1080/09500340903145031},
faupublication = {yes},
journal = {Journal of Modern Optics},
keywords = {Quantum information; Quantum receivers; Quantum state discrimination},
note = {UnivIS-Import:2015-03-09:Pub.2010.nat.dphy.optik.1optik.discri},
pages = {213-217},
peerreviewed = {Yes},
title = {{Discrimination} of optical coherent states using a photon number resolving detector},
volume = {27},
year = {2010}
}
@article{faucris.213272795,
abstract = {The scattering in the light emission wavelength of semiconductor nano-emitters assigned to nanoscale variations in strain, thickness, and composition is critical in current and novel nanotechnologies from highly efficient light sources to photovoltaics. Here, we present a correlated experimental and theoretical study of single nanorod light emitting diodes (nano-LEDs) based on InGaN/GaN multiquantum wells to separate the contributions of these intrinsic fluctuations. Cathodoluminescence measurements show that nano-LEDs with identical strain states probed by non-resonant micro-Raman spectroscopy can radiate light at different wavelengths. The deviations in the measured optical transitions agree very well with band profile calculations for quantum well thicknesses of 2.07-2.72 nm and In fractions of 17.5-19.5% tightly enclosing the growth values. The nanorod surface roughness controls the appearance of surface optical phonon modes with direct implications on the design of phonon assisted nano-LED devices. This work establishes a new, simple, and powerful methodology for fundamental understanding as well as quantitative analysis of the strain - light emission relationship and surface-related phenomena in the emerging field of nano-emitters.},
author = {Sarau, George and Heilmann, Martin and Latzel, Michael and Christiansen, Silke},
doi = {10.1039/c4nr02939a},
faupublication = {yes},
journal = {Nanoscale},
note = {EAM Import::2019-03-13},
pages = {11953-11962},
peerreviewed = {Yes},
title = {{Disentangling} the effects of nanoscale structural variations on the light emission wavelength of single nano-emitters: {InGaN}/{GaN} multiquantum well nano-{LEDs} for a case study},
volume = {6},
year = {2014}
}
@inproceedings{faucris.221874677,
abstract = {An empirical model for estimating the dispersion of solid-core Schott-SF6 photonic crystal fibre is presented. Finite element calculations and experimentally measured power-dependent spectra confirm the accuracy of the model.},
author = {Joly, Nicolas and Jiang, X. and Pennetta, Riccardo and Hammer, Jonas and Babic, F. and Russell, Philip St. John},
booktitle = {Optics InfoBase Conference Papers},
date = {2019-05-05/2019-05-10},
doi = {10.1364/CLEO-QELS.2019.FTh3B.3},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2019-07-09},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Dispersion} engineering of {Schott}-{SF6} photonic crystal fibres for nonlinear applications in the infrared},
venue = {San Jose, CA},
volume = {Part F128-CLEO{\_}QELS 2019},
year = {2019}
}
@article{faucris.121039424,
abstract = {We show that single copy distillation of squeezing from continuous variable non-Gaussian states is possible using linear optics and conditional homodyne detection. A specific non-Gaussian noise source, corresponding to a random linear displacement, is investigated experimentally. Conditioning the signal on a tap measurement, we observe probabilistic recovery of squeezing. © 2006 The American Physical Society.},
author = {Heersink, Joel and Marquardt, Christoph and Dong, Ruifang and Filip, Radim and Lorenz, Stefan and Leuchs, Gerd and Andersen, Ulrik Lund},
doi = {10.1103/PhysRevLett.96.253601},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.distil},
pages = {253601},
peerreviewed = {Yes},
title = {{Distillation} of {Squeezing} from {Non}-{Gaussian} {Quantum} {States}},
volume = {96},
year = {2006}
}
@article{faucris.245148803,
abstract = {Hybrid quantum information processing combines the advantages of discrete and continues variable protocols by realizing protocols consisting of photon counting and homodyne measurements. However, the mode structure of pulsed sources and the properties of the detection schemes often require the use of optical filters in order to combine both detection methods in a common experiment. This limits the efficiency and the overall achievable squeezing of the experiment. In our work, we use photon subtraction to implement the distillation of pulsed squeezed states originating from a genuinely spatially and temporally single-mode parametric down-conversion source in non-linear waveguides. Due to the distillation, we witness an improvement of 0.17 dB from an initial squeezing value of -1.648 +/- 0.002 dB, while achieving a purity of 0.58, and confirm the non-Gaussianity of the distilled state via the higher-order cumulants. With this, we demonstrate the source's suitability for scalable hybrid quantum network applications with pulsed quantum light. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement},
author = {Dirmeier, Thomas and Tiedau, Johannes and Khan, Imran and Ansari, Vahid and Müller, Christian and Silberhorn, Christine and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OE.402178},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team WoS Importer:2020-11-13},
pages = {30784-30796},
peerreviewed = {Yes},
title = {{Distillation} of squeezing using an engineered pulsed parametric down-conversion source},
volume = {28},
year = {2020}
}
@article{faucris.276459807,
abstract = {We experimentally demonstrate a protocol for entanglement distribution by a separable quantum system. In our experiment, two spatially separated modes of an electromagnetic field get entangled by local operations, classical communication, and transmission of a correlated but separable mode between them. This highlights the utility of quantum correlations beyond entanglement for the establishment of a fundamental quantum information resource and verifies that its distribution by a dual classical and separable quantum communication is possible. © 2013 American Physical Society.},
author = {Peuntinger, Christian and Chille, Vanessa and Mista, Ladislav and Korolkova, Natalia and Foertsch, Michael and Korger, Jan and Marquardt, Christoph and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.111.230506},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Distributing} entanglement with separable states},
volume = {111},
year = {2013}
}
@article{faucris.276457115,
abstract = {Continuous variable quantum states of light are used in quantum information protocols and quantum metrology and known to degrade with loss and added noise. We were able to show the distribution of bright polarization squeezed quantum states of light through an urban free-space channel of 1.6 km length. To measure the squeezed states in this extreme environment, we utilize polarization encoding and a postselection protocol that is taking into account classical side information stemming from the distribution of transmission values. The successful distribution of continuous variable squeezed states is accentuated by a quantum state tomography, allowing for determining the purity of the state. © 2014 American Physical Society.},
author = {Peuntinger, Christian and Heim, Bettina and Mueller, Christian R. and Gabriel, Christian and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.113.060502},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Distribution} of squeezed states through an atmospheric channel},
volume = {113},
year = {2014}
}
@article{faucris.120105084,
abstract = {When the topography of a rough surface is measured with a double-wavelength interferometer, the phase error of the signal corresponding to the synthetic wavelength increases in the vicinity of dark speckles. To overcome this problem we perform an amplitude-dependent averaging of the synthetic phase over independent speckles (diversity detection). We either use spatially neighboring speckles or in the case of depolarizing surfaces, we use speckles of the same spatial mode, but with orthogonal polarizations. For the latter case the lateral resolution stays unaffected. The reduction of the speckle noise is demonstrated experimentally for a laterally scanning double-wavelength interferometer with superheterodyne detection of the synthetic phase. © 2002 Optical Society of America.},
author = {Leuchs, Gerd and et al.},
author_hint = {Trautner Johannes, Leuchs Gerd},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.divers},
pages = {6200-6210},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Diversity} {Detection} of {Speckles} for {Double}-{Wavelength} {Interferometry} on {Rough} {Surfaces}},
volume = {41},
year = {2002}
}
@article{faucris.213270747,
abstract = {Laser Doppler velocimetry is used to measure very accurately the velocity and position of a microparticle propelled and guided by laser light in liquid-filled photonic crystal fiber. Periodic variations in particle velocity are observed that correlate closely with modal beating between the two lowest order guided fiber modes.},
author = {Garbos, M. K. and Euser, T. G. and Schmidt, O. A. and Unterkofler, S. and Russell, Philip St. John},
doi = {10.1364/OL.36.002020},
faupublication = {no},
journal = {Optics Letters},
note = {EAM Import::2019-03-13},
pages = {2020-2022},
peerreviewed = {Yes},
title = {{Doppler} velocimetry on microparticles trapped and propelled by laser light in liquid-filled photonic crystal fiber},
volume = {36},
year = {2011}
}
@inproceedings{faucris.119706444,
abstract = {Power characteristics and phase functions of a NALM are investigated in simulations and experimentally, showing a phase-preserving nonlinear characteristics suitable for amplitude regeneration of phase-encoded signals. A negative power penalty of -1.5 dB was obtained. ©2006 Optical Society of America.},
author = {Sponsel, Klaus and Stephan, Christian and Cvecek, Kristian and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Conf. Proc. OFC, Paper OThB2, March},
date = {2007-03-25/2007-03-29},
doi = {10.1109/OFC.2007.4348648},
faupublication = {yes},
isbn = {1557528314},
note = {UnivIS-Import:2017-12-18:Pub.2007.tech.IE.LEH.dpsksi},
peerreviewed = {Yes},
title = {{DPSK} {Signal} {Regeneration} {Using} a {Nonlinear} {Amplifying} {Loop} {Mirror}},
venue = {Anaheim, CA},
year = {2007}
}
@inproceedings{faucris.106826544,
author = {Geist, Eduard and Mantel, Klaus Peter and Harder, Irina and Lindlein, Norbert},
booktitle = {DGAO-Proceedings},
faupublication = {yes},
keywords = {Jahrestagung der DGaO},
pages = {B27},
peerreviewed = {No},
title = {{Drei}-{Stellungstest} für {Asphären}: {Steigerung} der {Genauigkeit}},
year = {2010}
}
@inproceedings{faucris.229196026,
abstract = {Selective detection and chemical analysis of trace gases at concentration levels of parts per million (ppm) and below is of critical importance in environmental monitoring [1] and medicine [2]. Spectroscopic techniques offer high gas-type selectivity and are widely used for measuring the concentration of specific molecular species. Raman spectroscopy provides two key advantages. First, the pump wavelength can be freely chosen, independently of the absorption lines of the gas. Second, the highest Raman frequency shift of any gas is the vibrational transition of H2 at 125 THz, which means that all known Raman active molecules can be detected with one spectrometer [3].},
author = {Tyumenev, R. and Spath, L. and Trabold, B. M. and Ahmed, G. and Frosz, M. H. and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872978},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Dual}-colour-pump broadband {CARS} in single-ring gas-filled photonic crystal fibre},
venue = {Munich},
year = {2019}
}
@article{faucris.110997524,
abstract = {Testing of aspherics by means of computer-generated holograms (CGHs) is well known. To perform a quasi-absolute test of rotationally symmetric aspheric surfaces, two wave fronts must be encoded in the CGH. Both the null lens and a spherical lens have to be stored. This enables successive measurements of the aspheric and of a cat's-eye position without changing the object arm of the interferometer. Two possibilities for encoding both wave fronts have been investigated. A first-order approximation for estimating the influence of disturbing diffraction orders is given.},
author = {Beyerlein, Mathias and Lindlein, Norbert and Schwider, Johannes},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.dualwa},
pages = {2440-2447},
peerreviewed = {Yes},
title = {{Dual}-wave-front computer-generated holograms for quasi-absolute testing of aspherics.},
volume = {41},
year = {2002}
}
@article{faucris.213312057,
abstract = {In this paper we describe a pneumatically actuated fibre-optic spanner integrated into a microfluidic Lab-on-a-Chip device for the controlled trapping and rotation of living cells. The dynamic nature of the system allows interactive control over the rotation speed with the same optical power. The use of a multi-layer device makes it possible to rotate a cell both in the imaging plane and also in a perpendicular plane allowing tomographic imaging of the trapped living cell. The integrated device allows easy operation and by combining it with high-resolution confocal microscopy we show for the first time that the pattern of rotation can give information regarding the sub-cellular composition of a rotated cell.},
author = {Kolb, Thorsten and Albert, Sahradha and Haug, Michael and Whyte, Graeme},
doi = {10.1039/C3LC51277K},
faupublication = {yes},
journal = {Lab on A Chip},
note = {EAM Import::2019-03-13},
pages = {1186-1190},
peerreviewed = {Yes},
title = {{Dynamically} reconfigurable fibre optical spanner},
volume = {14},
year = {2014}
}
@inproceedings{faucris.109259084,
abstract = {Laser manufacturing of microstructures using a single focus is a well known technology. Multi-spot optics are applied for process parallelizing if the demand on throughput in mass production rises or large areas of material have to be processed. Diffractive optical elements (DOEs) are used for parallel laser processing of a repetitive structure. These elements split the beam into a periodic spot pattern, where each spot shows the same shape and energy. This allows simultaneous manufacturing of several equal shaped structures at the same time. For patterning a surface this is state of the art and the appropriate technique to reduce processing time while maintaining a high lateral resolution as well as a good relative positioning of the structure due to the DOE. We investigate the usage of microlens arrays as multifunctional elements for forming an arbitrary shaped laser beam into a spot-, a ring-spot- or a line-array pattern. It can be shown that the intensity distribution of each spot is equal to the intensity distribution of all other spots in the whole pattern. The shape of the spots is defined by the angular distribution of the incident beam. We demonstrate that besides other optical properties the output beam profile strongly depends on the Fresnel-Number and is influenced by diffraction and interference effects. We present important design rules which consider geometrical and physical optics. The properties of the spot arrays, like spot diameter, Rayleigh length and beam divergence in dependency of beam and system properties are investigated. Finally we will show some laser micro structuring and micro drilling results in different materials. © 2009 SPIE.},
author = {Lindlein, Norbert and et al.},
author_hint = {Bich A., Weible K., Voelkel R., Zimmermann M., Harder I., Lindlein N., Masson J., Bitterli R., Noell W., Scharf T.},
booktitle = {Laser Beam Shaping X},
doi = {10.1117/12.828435},
faupublication = {yes},
isbn = {9780819477200},
keywords = {Flys Eye Condenser; Laser Beam Homogenizer; Material Processing; Micro Optics; Spot Array Generator},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Dynamic} array spot shaping for laser micro machining},
venue = {San Diego, CA},
volume = {7430},
year = {2009}
}
@article{faucris.298880353,
abstract = {Up until now, ground state cooling using optomechanical interaction is realized in the regime where optical dissipation is higher than mechanical dissipation. Here, we demonstrate that optomechanical ground state cooling in a continuous optomechanical system is possible by using backward Brillouin scattering while mechanical dissipation exceeds optical dissipation which is the common case in optical waveguides. The cooling is achieved in an anti-Stokes backward Brillouin process by modulating the intensity of the optomechanical coupling via a pulsed pump to suppress heating processes in the strong coupling regime. With such dynamic modulation, a significant cooling factor can be achieved, which can be several orders of magnitude lower than for the steady-state case. This modulation scheme can also be applied to Brillouin cooling generated by forward intermodal Brillouin scattering.},
author = {Zhu, Chang Long and Stiller, Birgit},
doi = {10.1088/2633-4356/acc2a5},
faupublication = {yes},
journal = {Materials for Quantum Technology},
keywords = {Brillouin scattering; mechanical cooling; optomechanics; quantum optics},
note = {CRIS-Team Scopus Importer:2023-05-05},
peerreviewed = {Yes},
title = {{Dynamic} {Brillouin} cooling for continuous optomechanical systems},
volume = {3},
year = {2023}
}
@article{faucris.213269726,
abstract = {We present a versatile method for selective mode coupling into higher-order modes of photonic crystal fibers, using holograms electronically generated by a spatial light modulator. The method enables non-mechanical and completely repeatable changes in the coupling conditions. We have excited higher order modes up to LP31 in hollow-core photonic crystal fibers. The reproducibility of the coupling allows direct comparison of the losses of different guided modes in both hollow-core bandgap and kagome-lattice photonic crystal fibers. Our results are also relevant to applications in which the intensity distribution of the light inside the fiber is important, such as particle- or atom-guidance.},
author = {Euser, Tijmen and Whyte, Graeme and Scharrer, Michael and Chen, J. S. Y. and Abdolvand, Amir and Nold, J. and Kaminski, C. F. and Russell, Philip St. John},
doi = {10.1364/OE.16.017972},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-13},
pages = {17972-17981},
peerreviewed = {Yes},
title = {{Dynamic} control of higher-order modes in hollow-core photonic crystal fibers},
volume = {16},
year = {2008}
}
@article{faucris.110677204,
abstract = {An algorithm for expanding the dynamic range of Shack-Hartmann sensors is proposed. The distribution of the spot dislocations is treated with a modified unwrapping algorithm that is widely used in interferometry. The algorithm unwraps the spot dislocations and assigns the spots to their original subapertures, leading to a huge expansion of the dynamic range. For the proposed algorithm there remains a limitation on the maximum wave-front curvature instead of on the maximum wave-front slope. Examples are given that show spot fields that were wrapped four times; the measured wave front had a peak-to-valley value of 116λ. © 1998 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Pfund Johannes, Lindlein Norbert, Schwider Johannes},
doi = {10.1364/OL.23.000995},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.dynami},
pages = {995-997},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Dynamic} range expansion of a {Shack}-{Hartmann} sensor by use of a modified unwrapping algorithm},
volume = {23},
year = {1998}
}
@inproceedings{faucris.304468661,
abstract = {We investigated the dynamics of LSFL (Low Spatial Frequency LIPSS) evolution on the titanium alloy surface. To create them, 12 W picosecond 1.064 μm laser with a pulse repetition rate from 50 kHz to 500 kHz was used. For different laser repetition rate (500, 150, 100 and 50 kHz), the ranges of LSFL periods and peak Fluence of pulse (Fp) for which the maximum period is reached were determined. We also determined the laser parameters at which the resulting LSFL have good quality and uniformity, regardless of the initial surface roughness.},
author = {Fomicheva, Iana and Druzhinin, Petr and Amler, Hans and Schuesslbauer, Wolfgang and Christiansen, Silke and Leuchs, Gerd},
booktitle = {Proceedings of SPIE - The International Society for Optical Engineering},
date = {2023-01-31/2023-02-02},
doi = {10.1117/12.2649015},
editor = {Rainer Kling, Akira Watanabe, Wilhelm Pfleging},
faupublication = {yes},
isbn = {9781510659230},
keywords = {HSFL; LIPSS; LSFL; surface patterning; Ti6Al4V; titanium alloy},
note = {CRIS-Team Scopus Importer:2023-06-02},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Dynamics} of {Development} of {Laser}-{Induced} {Structures} on the {Surface} of a {Titanium} {Alloy}},
venue = {San Francisco, CA},
volume = {12409},
year = {2023}
}
@article{faucris.317991752,
abstract = {Optical fiber networks are part of the important critical infrastructure and known to be prone to eavesdropping attacks. Hence, cryptographic methods have to be used to protect communication. Quantum key distribution (QKD), at its core, offers information theoretical security based on the laws of physics. In deployments, one has to take into account practical security and resilience. The latter includes the localization of a possible eavesdropper after an anomaly has been detected by the QKD system to avoid denial-of-service. Here, we present an approach to eavesdropper location that can be employed in quantum as well as classical channels using stimulated Brillouin scattering. The tight localization of the acoustic wave inside the fiber channel using correlated pump and probe waves allows discovery of the coordinates of a potential threat within centimeters. We demonstrate that our approach outperforms conventional optical time-domain reflectometry (OTDR) in the task of localizing an evanescent outcoupling of 1% with centimeter precision inside standard optical fibers. The system is furthermore able to clearly distinguish commercially available standard SMF28 from different manufacturers, paving the way for fingerprinted fibers in high-security environments.
(2)(0) value, which is between 0.10 and 0.23, depending on the excitation power. To our knowledge, this is the first single-photon source absolutely calibrated with respect to its absolute optical radiant flux and spectral power distribution, traceable to the corresponding national standards via an unbroken traceability chain. The prospects for its application, e.g., for the detection efficiency calibration of single-photon detectors as well as for use as a standard photon source in the low photon flux regime, are promising.},
author = {Rodiek, Beatrice and Lopez, Marco and Hofer, Helmuth and Porrovecchio, Geiland and Smid, Marek and Chu, Xiao-Liu and Götzinger, Stephan and Sandoghdar, Vahid and Lindner, Sarah and Becher, Christoph and Kuck, Stefan},
doi = {10.1364/OPTICA.4.000071},
faupublication = {yes},
journal = {Optica},
keywords = {Metrology; Photon statistics; Radiometry; Sources},
month = {Jan},
note = {CRIS-Team Scopus Importer:2023-03-27},
pages = {71-76},
peerreviewed = {Yes},
title = {{Experimental} realization of an absolute single-photon source based on a single nitrogen vacancy center in a nanodiamond},
volume = {4},
year = {2017}
}
@article{faucris.234625869,
abstract = {We study the spatial mode content at the output of a wide-field SU(1,1) interferometer, i.e. a nonlinear interferometer comprising two coherently-pumped spatially-multimode optical parametric amplifiers placed in sequence with a focusing element in between. This device is expected to provide a phase sensitivity below the shot-noise limit for multiple modes over a broad angular range. To reconstruct the spatial modes and their weights, we implement a simple method based on the acquisition of only intensity distributions. The eigenmode decomposition of the field is obtained through the measurement of the covariance of intensities at different spatial points. We investigate both the radial and azimuthal (orbital angular momentum) modes and show that their total number is large enough to enable applications of the interferometer in spatially-resolved phase measurements.},
author = {Frascella, Gaetano and Zakharov, Roman V. and Tikhonova, Olga V. and Chekhova, Maria},
doi = {10.1088/1555-6611/ab4bdc},
faupublication = {yes},
journal = {Laser Physics},
keywords = {Orbital angular momentum; Parametric down-conversion; Schmidt modes; SU(1,1) interferometer},
note = {CRIS-Team Scopus Importer:2020-02-21},
peerreviewed = {Yes},
title = {{Experimental} reconstruction of spatial {Schmidt} modes for a wide-field {SU}(1,1) interferometer},
volume = {29},
year = {2019}
}
@article{faucris.110999284,
abstract = {A conventional Shack-Hartmann wavefront sensor cannot be used for the measurement of wavefronts with steep slopes if the spots leave their respective subapertures. In an earlier paper [N. Lindlein, J. Pfund, and J. Schwider, "Expansion of the dynamic range of a Shack-Hartmann sensor by using astigmatic microlenses," Opt. Eng. 39(8), 2220-2225 (2000)], we described a method to expand the dynamic range of a Shack-Hartmann wavefront sensor by marking the spots using astigmatic microlenses. We present experimental results for this method and describe how this special sensor can be interpreted as a combination of several Shack-Hartmann sensors with enlarged subapertures.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Pfund Johannes},
doi = {10.1117/1.1430724},
faupublication = {yes},
journal = {Optical Engineering},
keywords = {Dynamic range expansion; Microlenses; Shack-Hartmann sensor; Wavefront sensor},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.experi},
pages = {529-533},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Experimental} results for expanding the dynamic range of a {Shack}-{Hartmann} sensor using astigmatic microlenses},
volume = {41},
year = {2002}
}
@inproceedings{faucris.123697024,
author = {Rothau, Sergej and Kellermann, Christine and Lindlein, Norbert},
booktitle = {116. Annual Meeting of the DGaO},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Experimental} results of the simultaneous measurement of spatially varying phase and polarization.},
venue = {Brno (CZ)},
year = {2015}
}
@misc{faucris.108799944,
author = {Rothau, Sergej and Kellermann, Christine and Lindlein, Norbert},
faupublication = {yes},
peerreviewed = {automatic},
title = {{Experimental} results of the simultaneous measurement of spatially varying phase and polarization},
year = {2015}
}
@inproceedings{faucris.288242629,
abstract = {A wide range of experiments studying microwave photons localized in superconducting cavities have made important contributions to our understanding of the quantum properties of radiation. Propagating microwave photons, however, have so far been studied much less intensely. Here we present measurements in which we reconstruct the Wigner function of itinerant single photon Fock states and their superposition with the vacuum using linear amplifiers and quadrature amplitude detectors. We have developed efficient methods to separate the detected single photon signal from the noise added by the amplifier by analyzing the moments of the measured amplitude distribution up to 4th order. This work is expected to enable studies of propagating microwaves in the context of linear quantum optics. Combining single photon sources with beamsplitter and squeezing devices, efficient photon state measurements could allow for future linear optics quantum computation with microwaves photons.},
author = {Eichler, Christopher and et al.},
author_hint = {Eichler C., Bozyigit D., Lang C., Steffen L., Fink J. M., Wallraff A.},
booktitle = {QSIT lunch seminar},
date = {2010-12-02},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Experimental} {Tomographic} {State} {Reconstruction} of {Itinerant} {Microwave} {Photons}},
venue = {ETH Zurich, Switzerland},
year = {2010}
}
@article{faucris.112070904,
abstract = {We study the spectral properties of spontaneous parametric down-conversion (SPDC) in a periodically poled waveguided structure of potassium-titanyl- phosphate (KTP) crystal pumped by ultrashort pulses. Our theoretical analysis reveals a strongly entangled and asymmetric structure of the two-photon spectral amplitude for type-II SPDC. We confirm these predictions experimentally by measuring single-photon spectra, on one hand, and the dependence of Hong-Ou-Mandel interference visibility on the width of spectral filtering, on the other hand. © 2009 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Avenhaus Malte, Chekhova Maria V, Krivitsky Leonid A., Leuchs Gerd, Silberhorn Christine},
doi = {10.1103/PhysRevA.79.043836},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.experi},
pages = {043836},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Experimental} verification of high spectral entanglement for pulsed waveguided spontaneous parametric down-conversion},
volume = {79},
year = {2009}
}
@article{faucris.319233025,
abstract = {We present a protocol for performing entanglement swapping with intense pulsed beams. In a first step, the generation of amplitude correlations between two systems that have never interacted directly is demonstrated. This is verified in direct detection with electronic modulation of the detected photocurrents. The measured correlations are better than expected from a classical reconstruction scheme. In an entanglement swapping process, a four-partite entangled state is generated. We prove experimentally that the amplitudes of the four optical modes are quantum correlated 3 dB below shot noise, which is consistent with the presence of genuine four-party entanglement.
2, which is determined by the contour of the intensity distribution at half the maximum value. The radially polarized doughnut mode may also be used to build improved near field sensors having a substantially increased brightness.},
author = {Leuchs, Gerd and et al.},
author_hint = {Quabis Susanne, Dorn Ralf, Eberler Manfred, Glöckl Oliver, Leuchs Gerd},
doi = {10.1016/S0030-4018(99)00729-4},
faupublication = {yes},
journal = {Optics Communications},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.focusi},
pages = {1-7},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Focusing} light to a tighter spot},
volume = {179},
year = {2000}
}
@article{faucris.121004444,
abstract = {Grazing-incidence interferometry that makes use of diffractive axicons for the measurement of cylindrical mantle surfaces has already been reported. However, measurement of concave rod structures poses a severe problem because these structures are subject to spurious fringes caused by parasitic diffraction orders of the diffractive axicons. By breaking the symmetry of the interferometric setup it is possible to obtain unique interferograms of the inner mantle surfaces of hollow cylinders as cages for roller bearings or other workpieces produced on lathe machines that have a suitable surface finish. Special design issues for the computer-generated holograms and the interferometric setup are discussed, and test examples are given. © 2002 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Schreiner Roland, Beyerlein Mathias, Harder Irina, Dresel Thomas, Lindlein Norbert},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-04-14:Pub.2002.nat.dphy.optik.1optik.formas},
pages = {64-69},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Form} assessment of hollow cylindrical specimens},
volume = {41},
year = {2002}
}
@article{faucris.230866529,
abstract = {Self-assembly of fundamental elements through weak, long-range interactions plays a central role in both supramolecular DNA assembly and bottom-up synthesis of nanostructures. Optical solitons, analogous in many ways to particles, arise from the balance between nonlinearity and dispersion and have been studied in numerous optical systems. Although both short- and long-range interactions between optical solitons have attracted extensive interest for decades, stable soliton supramolecules, with multiple aspects of complexity and flexibility, have thus far escaped experimental observation due to the absence of techniques for enhancing and controlling the long-range inter-soliton forces. Here we report that long-range soliton interactions originating from optoacoustic effects and dispersive-wave radiations can be precisely tailored in a fibre laser cavity, enabling self-assembly of large numbers of optical solitons into highly-ordered supramolecular structures. We demonstrate several features of such optical structures, highlighting their potential applications in optical information storage and ultrafast laser-field manipulation.},
author = {He, Wenbin and Pang, Meng and Yeh, Dung-Han and Huang, Jiapeng and Menyuk, C. R. and Russell, Philip St. John},
doi = {10.1038/s41467-019-13746-6},
faupublication = {yes},
journal = {Nature Communications},
note = {CRIS-Team Scopus Importer:2019-12-27},
peerreviewed = {Yes},
title = {{Formation} of optical supramolecular structures in a fibre laser by tailoring long-range soliton interactions},
volume = {10},
year = {2019}
}
@inproceedings{faucris.109230924,
author = {Ghadyani, Zahra and Rothau, Sergej and Russina, Olga and Harder, Irina and Lindlein, Norbert},
booktitle = {37th International Conference on Micro and Nano Engineering},
date = {2011-09-19/2011-09-23},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Form} birefringent quarter wave plate for polarization conversion},
venue = {Berlin},
year = {2011}
}
@inproceedings{faucris.117963384,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St., Ritter D.},
booktitle = {Optische Formerfassung},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1997.nat.dphy.optik.1optik.fortsc},
pages = {?},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Fortschritte} bei der {Automatisierung} des {Reverse} {Engineering}},
venue = {Esslingen},
year = {1997}
}
@inproceedings{faucris.276463251,
abstract = {We propose and experimentally demonstrate a hybrid discrimination scheme for the quadrature phase shift keying protocol, which outperforms heterodyne detection for any signal power. The discrimination is composed of a quadrature measurement, feed forward and photon detection. © 2012 OSA.},
author = {Müller, Christian R. and Usuga, Mario A. and Wittmann, Christoffer and Takeoka, Masahiro and Marquardt, Christoph and Andersen, Ulrik L. and Leuchs, Gerd},
booktitle = {2012 Conference on Lasers and Electro-Optics, CLEO 2012},
date = {2012-05-06/2012-05-11},
faupublication = {yes},
isbn = {9781467318396},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Four}-state discrimination scheme beyond the heterodyne limit},
year = {2012}
}
@article{faucris.111773904,
abstract = {It is well known that the foci of a periodic array of microlenses are reproduced and multiplied in the fractional Talbot planes. But the intensity between the multiplied foci varies in general in one period, especially if the light in the spacing between the lenses is not absorbed but transmitted. Additionally, in the case of microlenses with a high numerical aperture the parabolic approximation or Fresnel diffraction, which is normally used to explain the Talbot effect, is no longer valid. A theoretical explanation and numerical simulations are given together with experimental results. © 1997 Society of Photo-Optical Instrumentation Engineers.},
author = {Lindlein, Norbert and et al.},
author_hint = {Besold B., Lindlein Norbert},
faupublication = {yes},
journal = {Optical Engineering},
keywords = {Array illuminator; Fractional Talbot effect; Intensity of foci; Microlens arrays; Propagation of angular spectrum; Self-imaging},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.fracti},
pages = {1099-1105},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Fractional} {Talbot} effect for periodic microlens arrays},
volume = {36},
year = {1997}
}
@article{faucris.276449116,
abstract = {Spatially structured optical fields have been used to enhance the functionality of a wide variety of systems that use light for sensing or information transfer. As higher-dimensional modes become a solution of choice in optical systems, it is important to develop channel models that suitably predict the effect of atmospheric turbulence on these modes. We investigate the propagation of a set of orthogonal spatial modes across a free-space channel between two buildings separated by 1.6 km. Given the circular geometry of a common optical lens, the orthogonal mode set we choose to implement is that described by the Laguerre-Gaussian (LG) field equations. Our study focuses on the preservation of phase purity, which is vital for spatial multiplexing and any system requiring full quantum-state tomography. We present experimental data for the modal degradation in a real urban environment and draw a comparison to recognized theoretical predictions of the link. Our findings indicate that adaptations to channel models are required to simulate the effects of atmospheric turbulence placed on high-dimensional structured modes that propagate over a long distance. Our study indicates that with mitigation of vortex splitting, potentially through precorrection techniques, one could overcome the challenges in a real point-to-point free-space channel in an urban environment.},
author = {Lavery, Martin P. J. and Peuntinger, Christian and Günthner, Kevin and Banzer, Peter and Elser, Dominique Alexander and Boyd, Robert W. and Padgett, Miles J. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1126/sciadv.1700552},
faupublication = {yes},
journal = {Science Advances},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Free}-space propagation of high-dimensional structured optical fields in an urban environment},
volume = {3},
year = {2017}
}
@inproceedings{faucris.276469400,
abstract = {We experimentally investigate atmospheric influences on quantum communication using continuous polarization variables. Signal and local oscillator are combined in one spatial mode, which leads to excellent interference at the homodyne detection. Phase fluctuations are thus auto-compensated. © 2011 Optical Society of America.},
author = {Heim, Bettina and Peuntinger, Christian and Wittmann, Christoffer and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2011-07-10/2011-07-14},
doi = {10.1364/lsc.2011.lwd3},
faupublication = {yes},
isbn = {9781557529145},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Free} space quantum communication using continuous polarization variables},
venue = {CAN},
year = {2011}
}
@article{faucris.276447603,
abstract = {Free-space optical communication links are promising channels for establishing secure quantum communication. Here we study the transmission of nonclassical light through a turbulent atmospheric link under diverse weather conditions, including rain or haze. To include these effects, the theory of light transmission through atmospheric links in the elliptic-beam approximation presented by Vasylyev et al. [D. Vasylyev, Phys. Rev. Lett. 117, 090501 (2016)PRLTAO0031-900710.1103/PhysRevLett.117.090501] is further generalized. It is demonstrated, with good agreement between theory and experiment, that low-intensity rain merely contributes additional deterministic losses, whereas haze also introduces additional beam deformations of the transmitted light. Based on these results, we study theoretically the transmission of quadrature squeezing and Gaussian entanglement under these weather conditions.},
author = {Vasylyev, Dmytro Yu. and Semenov, A. A. and Vogel, W. and Guenthner, K. and Thurn, Andreas and Bayraktar, O. and Marquardt, Christoph},
doi = {10.1103/PhysRevA.96.043856},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Free}-space quantum links under diverse weather conditions},
volume = {96},
year = {2017}
}
@article{faucris.276450616,
abstract = {Digital signatures guarantee the authorship of electronic communications. Currently used "classical" signature schemes rely on unproven computational assumptions for security, while quantum signatures rely only on the laws of quantum mechanics to sign a classical message. Previous quantum signature schemes have used unambiguous quantum measurements. Such measurements, however, sometimes give no result, reducing the efficiency of the protocol. Here, we instead use heterodyne detection, which always gives a result, although there is always some uncertainty. We experimentally demonstrate feasibility in a real environment by distributing signature states through a noisy 1.6 km free-space channel. Our results show that continuous-variable heterodyne detection improves the signature rate for this type of scheme and therefore represents an interesting direction in the search for practical quantum signature schemes. For transmission values ranging from 100% to 10%, but otherwise assuming an ideal implementation with no other imperfections, the signature length is shorter by a factor of 2 to 10. As compared with previous relevant experimental realizations, the signature length in this implementation is several orders of magnitude shorter.},
author = {Croal, Callum and Peuntinger, Christian and Heim, Bettina and Khan, Imran and Marquardt, Christoph and Leuchs, Gerd and Wallden, Petros and Andersson, Erika and Korolkova, Natalia},
doi = {10.1103/PhysRevLett.117.100503},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Free}-{Space} {Quantum} {Signatures} {Using} {Heterodyne} {Measurements}},
volume = {117},
year = {2016}
}
@article{faucris.256235637,
abstract = {The behavior of electromagnetic waves in chirally twisted structures is a topic of enduring interest, dating back at least to the 1940s invention of the microwave travelling-wave-tube amplifier and culminating in contemporary studies of chiral metamaterials, metasurfaces, and photonic crystal fibers (PCFs). Optical fibers with chiral microstructures, drawn from a spinning preform, have many useful properties, exhibiting, for example, circular birefringence and circular dichroism. It has recently been shown that chiral fibers with N-fold rotationally symmetric (symmetry group CN) transverse microstructures support families of helical Bloch modes (HBMs), each of which consists of a superposition of azimuthal Bloch harmonics (or optical vortices). An example is a fiber with N coupled cores arranged in a ring around its central axis (N-core single-ring fiber). Although this type of fiber can be readily modeled using scalar coupled-mode theory, a full description of its optical properties requires a vectorial analysis that takes account of the polarization state of the light, which is particularly important in studies of circular and vortical birefringence. In this paper, we develop, using an orthogonal 2D helicoidal coordinate system embedded in a cylindrical surface at constant radius, a rigorous vector coupled-mode description of the fields using local Frenet–Serret frames that rotate and twist with each of the N cores. The analysis places on a firm theoretical footing a previous HBM theory in which a heuristic approach was taken, based on physical intuition of the properties of Bloch waves. After a detailed review of the polarization evolution in a single spiraling core, analysis of the N-core single-ring system is carefully developed step by step. Accuracy limits of the analysis are assessed by comparison with the results of finite element modeling, focusing in particular on the dispersion, polarization states, and transverse field profiles of the HBMs. We believe this study provides clarity into what can sometimes be a rather difficult field and will facilitate further exploration of real-world applications of these fascinating waveguiding systems.},
author = {Chen, Y. and Russell, Philip St. John},
doi = {10.1364/JOSAB.412186},
faupublication = {yes},
journal = {Journal of the Optical Society of America B-Optical Physics},
note = {CRIS-Team Scopus Importer:2021-04-23},
pages = {1173-1183},
peerreviewed = {Yes},
title = {{Frenet}–{Serret} analysis of helical {Bloch} modes in {N}-fold rotationally symmetric rings of coupled spiraling optical waveguides},
volume = {38},
year = {2021}
}
@article{faucris.276450363,
abstract = {Quantum repeaters rely on interfacing flying qubits with quantum memories. The most common implementations include a narrowband single photon matched in bandwidth and central frequency to an atomic system. Previously, we demonstrated the compatibility of our versatile source of heralded single photons, which is based on parametric down-conversion in a triply resonant whispering-gallery mode resonator, with alkaline transitions [Schunk et al., Optica 2015,2, 773]. In this paper, we analyse our source in terms of phase matching, available wavelength-tuning mechanisms and applications to narrowband atomic systems. We resonantly address the D1 transitions of caesium and rubidium with this optical parametric oscillator pumped above its oscillation threshold. Below threshold, the efficient coupling of single photons to atomic transitions heralded by single telecom-band photons is demonstrated. Finally, we present an accurate analytical description of our observations. Providing the demonstrated flexibility in connecting various atomic transitions with telecom wavelengths, we show a promising approach to realize an essential building block for quantum repeaters.},
author = {Schunk, G. and Vogl, Ulrich and Sedlmeir, F. and Strekalov, D. V. and Otterpohl, A. and Averchenko, V. and Schwefel, H. G. L. and Leuchs, Gerd and Marquardt, Christoph},
doi = {10.1080/09500340.2016.1148211},
faupublication = {yes},
journal = {Journal of Modern Optics},
keywords = {(270.5565) Quantum communications; (300.6210) Spectroscopy; 190.4970 Parametric oscillators and amplifiers; atomic; OCIS: (270.0270) Quantum optics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {2058-2073},
peerreviewed = {Yes},
title = {{Frequency} tuning of single photons from a whispering-gallery mode resonator to {MHz}-wide transitions},
volume = {63},
year = {2016}
}
@article{faucris.107763524,
abstract = {Arrays of coherently driven photomixers with antenna (antenna emitter arrays, AEAs) have been evaluated as a possibility to overcome the power limitations of individual conventional photomixers with antenna ('antenna emitters', AEs) for the generation of continuous-wave (CW) THz radiation. In this paper, 'large area emitters' (LAEs) are proposed as an alternative approach, and compared with AEAs. In this antenna-free new scheme of photomixing, the THz radiation originates directly from the acceleration of photo-induced charge carriers generated within a large semiconductor area. The quasi-continuous distribution of emitting elements corresponds to a high-density array and results in favorable radiation profiles without side lobes. Moreover, the achievable THz power is expected to outnumber even large AEAs. Last not least, the technological challenge of fabricating LAEs appears to be significantly less demanding. © 2011-2012 IEEE.},
author = {Malzer, Stefan and Döhler, Gottfried and Garcia-Munoz, Enrique and Preu, Sascha and Bauerschmidt, Sebastian and Montero-De-Paz, J. and Ugarte-Munoz, E. and Rivera-Lavado, Alejandro and Segovia-Vargas, Daniel and Gonzalez-Posadas, V.},
doi = {10.1109/TTHZ.2013.2266541},
faupublication = {yes},
journal = {IEEE Transactions on Terahertz Science and Technology},
pages = {532-544},
peerreviewed = {unknown},
title = {{From} arrays of {THz} antennas to large-area emitters},
volume = {3},
year = {2013}
}
@inproceedings{faucris.213925978,
address = {NEW YORK},
author = {Joly, Nicolas and Hammer, J. and Pennetta, Riccardo and Cavanna, A. and Jiang, Xin and Frosz, M. H. and Chekhova, Maria},
booktitle = {2018 IEEE PHOTONICS CONFERENCE (IPC)},
date = {2018-09-30/2018-10-04},
doi = {10.1109/ipcon.2018.8527212},
faupublication = {yes},
month = {Jan},
note = {CRIS-Team WoS Importer:2019-03-20},
peerreviewed = {unknown},
publisher = {IEEE},
title = {{From} third harmonic to triplet generation in micro structured fibers},
venue = {Reston, VA},
year = {2018}
}
@article{faucris.228297062,
abstract = {It was recently reported that a photonic crystal fiber (PCF) with no structural core guides light if a permanent chiral twist is introduced by spinning the fiber preform during the draw. The intriguing guidance mechanism behind this novel effect has many remarkable features; for example, it intrinsically supports circularly polarized helical Bloch modes (HBMs) that carry multiple optical vortices, making twisted PCFs of interest in fields such as optical micro-manipulation, imaging, quantum optics, and optical communications. Here we report for the first time, to the best of our knowledge, that a twisted coreless PCF supports not just one but a family of guided HBMs, each member of which has a unique transverse field distribution and harmonic spectrum. By making detailed interferometric measurements of the near-field phase and amplitude distributions of HBMs, and expanding them as a series of Bessel beams, we are able to extract the amplitude of each azimuthal and radial HBM harmonic. Good agreement is found with the numerical solutions of Maxwell's equations. The results shed light on the properties of this curious new optical phenomenon. (C) 2019 Optical Society of America},
author = {Roth, P. and Wong, G. K. L. and Frosz, M. H. and Ahmed, G. and Russell, Philip St. John},
doi = {10.1364/OL.44.005049},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team WoS Importer:2019-10-25},
pages = {5049-5052},
peerreviewed = {Yes},
title = {{Full}-field characterization of helical {Bloch} modes guided in twisted coreless photonic crystal fiber},
volume = {44},
year = {2019}
}
@article{faucris.232910225,
abstract = {High-dimensional encoding schemes have emerged as a novel way to perform quantum information tasks. For high dimensionality, temporal and transverse spatial modes of photons are the two paradigmatic degrees of freedom commonly used in such experiments. Nevertheless, general devices for multi-outcome measurements are still needed to take full advantage of the high-dimensional nature of encoding schemes. We propose a general full-field mode sorting scheme consisting of only up to two optimized phase elements based on evolutionary algorithms that allows for joint sorting of azimuthal and radial modes. We further study the performance of our scheme through simulations in the context of high-dimensional quantum cryptography, where sorting in different mutually unbiased bases and high-fidelity measurement schemes are crucial.},
author = {Fickler, Robert and Bouchard, Frederic and Giese, Enno and Grillo, Vincenzo and Leuchs, Gerd and Karimi, Ebrahim},
doi = {10.1088/2040-8986/ab6303},
faupublication = {yes},
journal = {Journal of Optics},
note = {CRIS-Team WoS Importer:2020-01-31},
peerreviewed = {Yes},
title = {{Full}-field mode sorter using two optimized phase transformations for high-dimensional quantum cryptography},
volume = {22},
year = {2020}
}
@article{faucris.213404556,
abstract = {We experimentally demonstrate plasmonic nanocircuits operating as subdiffraction directional couplers optically excited with high efficiency from free-space using optical Yagi-Uda style antennas at \textgreekl0 = 1550 nm. The optical Yagi-Uda style antennas are designed to feed channel plasmon waveguides with high efficiency (45% in coupling, 60% total emission), narrow angular directivity (<40°), and low insertion loss. SPP channel waveguides exhibit propagation lengths as large as 34 \textgreekmm with adiabatically tuned confinement and are integrated with ultracompact (5 $\times$ 10 \textgreekmm2), highly dispersive directional couplers, which enable 30 dB discrimination over \textgreekDl = 200 nm with only 0.3 dB device loss.},
author = {Kriesch, Arian and Burgos, Stanley P. and Ploss, Daniel and Pfeifer, Hannes and Atwater, Harry A. and Peschel, Ulf},
doi = {10.1021/nl402580c},
faupublication = {yes},
journal = {Nano Letters},
note = {EAM Import::2019-03-14},
pages = {4539-4545},
peerreviewed = {Yes},
title = {{Functional} {Plasmonic} {Nanocircuits} with {Low} {Insertion} and {Propagation} {Losses}},
year = {2013}
}
@article{faucris.121007084,
abstract = {Objective: To determine the limits of accuracy of fusion of optical three-dimensional (3D) imaging and computed tomography (CT) with and without metal artefacts in an experimental setting and to show the application of this hybrid system in 3D orthognathic surgery simulation. Methods: Ten plaster casts of dental arches were subjected to a CT scan and optical 3D surface imaging. Subsequently, the first molars in the plaster casts were supplied with metal restorations, bilaterally, and new CT scans and optical surface images were assessed. The registration of the surface data of the two imaging modalities of the study models without and with metal restorations was carried out. The mean distance between the two data sets was calculated. From a patient a CT scan of the skull as well as optical 3D images of plaster casts of the dental arches were acquired. Again the two imaging modalities were registered and virtual orthognathic surgery simulation was carried out. Results: The mean distance between the corresponding data points of CT and optical 3D surface images was 0.1262 ±0.0301 mm and 0.2671±0.0580 mm, respectively, for the plaster casts without and with metal restorations. The differences between these data were statistically significant (P< 0.0005). For the patient case a mean difference of 0.66±0.49 mm and 0.56±0.48 mm for mandible and maxilla, respectively, was calculated between CT and optical surface data. Conclusion: The accuracy of the fusion of 3D CT surface data and optical 3D imaging is significantly reduced by metal artefacts. However, it seems appropriate for virtual orthognathic surgery simulation, as post-operative orthodontics are performed frequently. © 2004 The British Institute of Radiology.},
author = {Nkenke, Emeka and Häusler, Gerd and Lell, Michael and et al.},
author_hint = {Nkenke Emeka, Zachow S., Benz Michaela, Maier Tobias, Veit K., Kramer Marlene, Benz S., Häusler Gerd, Neukam F.W., Lell Michael},
doi = {10.1259/dmfr/27071199},
faupublication = {yes},
journal = {Dentomaxillofacial Radiology},
keywords = {Computed tomography; Image fusion; Metal artefacts; Optical 3D imaging; Phase measuring triangulation},
note = {UnivIS-Import:2015-04-14:Pub.2004.nat.dphy.optik.1optik.fusion},
pages = {226-32},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Fusion} of computed tomography data and optical {3D} images of the dentition for streak artefact correction in the simulation of orthognathic surgery},
volume = {33},
year = {2004}
}
@article{faucris.107764184,
abstract = {A new geometry for the design of antennas in the Terahertz band is presented. The structure is based on a horn antenna etched in the substrate and fed with a planar printed antenna used for generation of terahertz radiation, designed for the 200 GHz to 3 THz range. For the proposed antenna, the energy distribution through the substrate is reduced towards an increase in the gain of the system, at least, 8 dB in a 1:10 bandwidth. The structure has been measured showing the expected behavior in the low band. © 2006 IEEE.},
author = {Malzer, Stefan and Andres-Garcia, Belen and Garcia-Munoz, Enrique and Segovia-Vargas, Daniel and Bauerschmidt, Sebastian and Preu, Sascha and Döhler, Gottfried and Wang, Lijun},
doi = {10.1109/TAP.2011.2161563},
faupublication = {yes},
journal = {IEEE Transactions on Antennas and Propagation},
pages = {3164-3170},
peerreviewed = {Yes},
title = {{Gain} enhancement by dielectric horns in the {Terahertz} band},
volume = {59},
year = {2011}
}
@article{faucris.216836809,
abstract = {The insulating character of sapphire, meltback etching of Si, bulk and surface defects prevented the efficient integration of GaN nanostructures in optoelectronic devices. Here, it is demonstrated that graphene can simultaneously serve as an electrical bottom contact, a chemically inert buffer layer, and a superior lattice and thermal matched growth substrate. Vertically aligned, high crystal quality GaN nanorods (NRs) without bulk defects such as threading dislocations and with only a mild strain at the NRs’ base are grown by metal-organic vapor-phase epitaxy on defect-free graphene using nanometer-sized Al
x
Ga
1−x
N nucleation islands. Here no influence of the supporting substrate on the GaN epitaxy is observed. However, at defects in graphene the effects of dangling bonds and the underlying substrate, presumably through nanoholes in graphene, on the properties of GaN NRs are visible. It is also shown that surface defects in In
x
Ga
1−x
N/GaN NRs from planar films produced by etching of the defective material can be effectively passivated with only 10 nm alumina deposited by atomic layer deposition. This is confirmed by the increase in electroluminescence measured on finished devices with graphene top contact. These results can potentially lead to new material combinations including graphene, GaN, and other relevant semiconductors like Si toward yet unexplored device concepts.},
author = {Sarau, George and Heilmann, Martin and Latzel, Michael and Tessarek, Christian and Christiansen, Silke},
doi = {10.1002/pssb.201800454},
faupublication = {yes},
journal = {physica status solidi (b)},
keywords = {defects; GaN; graphene; heterostructures; nanorods; nucleation; silicon},
note = {CRIS-Team Scopus Importer:2019-05-02},
peerreviewed = {Yes},
title = {{GaN}-{Based} {Nanorods}/{Graphene} {Heterostructures} for {Optoelectronic} {Applications}},
volume = {256},
year = {2019}
}
@inproceedings{faucris.255812027,
abstract = {Four-wave-mixing in a suspended core fiber is spectrally tuned by filling the fiber with argon. This allows the generation of photon pairs to be tuned over at least 40 nm, extendible using even higher pressures.},
author = {Hammer, Jonas and Chekhova, Maria and Russell, Philip St. John and Joly, Nicolas},
booktitle = {Frontiers in Optics - Proceedings Frontiers in Optics + Laser Science APS/DLS},
date = {2019-09-15/2019-09-19},
doi = {10.1364/FIO.2019.JW4A.45},
faupublication = {yes},
isbn = {9781943580675},
note = {CRIS-Team Scopus Importer:2021-04-20},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Gas}-pressure tunable photon-pair generation in a suspended core fiber},
venue = {Washington, DC,},
year = {2019}
}
@inproceedings{faucris.109259964,
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein N., Leuchs G., Ramachandran S.},
booktitle = {2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, CLEO},
doi = {10.1109/CLEOE-IQEC.2007.4386066},
faupublication = {yes},
isbn = {9781424409303},
peerreviewed = {unknown},
publisher = {Optical Society of America},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Gaussian} beam output from a large-mode-area higher-order-mode fiber},
venue = {Munich},
year = {2007}
}
@inproceedings{faucris.313149280,
abstract = {Guided Acoustic Wave Brillouin Scattering (GAWBS) generates phase and polarization noise of light propagating in glass fibers. We experimentally demonstrate the reduction of GAWBS noise in microstructured fibers in comparison with standard fibers. © 2005 IEEE.},
author = {Elser, Dominique Alexander and Korn, Alexander and Lorenz, Stefan and Glöckl, Oliver and Marquardt, Christoph and Andersen, Ulrik Lund and Leuchs, Gerd},
booktitle = {2005 European Quantum Electronics Conference, EQEC '05},
date = {2005-06-12/2005-06-17},
doi = {10.1109/EQEC.2005.1567494},
faupublication = {yes},
isbn = {0780389735},
note = {Created from Fastlane, Scopus look-up},
pages = {328-},
peerreviewed = {unknown},
title = {{GAWBS} noise reduction in microstructured fibers},
venue = {DEU},
volume = {2005},
year = {2005}
}
@article{faucris.213322139,
abstract = {A graphical representation for two-dimensional periodic structures is introduced that provides the full information contained in the dispersion equation: not only for the pass band but for the neighboring stop bands as well. It is a seamless natural extension of Brillouin diagrams obtained by adding eight new zones which incorporate the properties of evanescent waves. The accuracy of the infinite lattice approximation is tested both by simulations and experiments using magnetoinductive waves. For waves propagating in one direction and evanescent in the other direction, the results of the three different methods are shown to be in good agreement. The versatility of the new representation and its applicability to the design of near-field manipulating metamaterials is discussed.},
author = {Tatartschuk, Eugen and Radkovskaya, A. and Shamonina, E. and Solymar, L.},
doi = {10.1103/PhysRevB.81.115110},
faupublication = {yes},
journal = {Physical Review B},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Generalized} {Brillouin} diagrams for evanescent waves in metamaterials with interelement coupling},
volume = {81},
year = {2010}
}
@article{faucris.271008508,
abstract = {We derive a general theory of linear coupling and Kerr nonlinear coupling between modes of dielectric optical resonators from first principles. The treatment is not specific to a particular geometry or choice of mode basis, and can therefore be used as a foundation for describing any phenomenon resulting from any combination of linear coupling, scattering, and Kerr nonlinearity, such as bending and surface roughness losses, geometric backscattering, self- and cross-phase modulation, four-wave mixing, third-harmonic generation, and Kerr frequency comb generation. The theory is then applied to a translationally symmetric waveguide in order to calculate the evanescent coupling strength to the modes of a microresonator placed nearby, as well as the Kerr self- and cross-phase modulation terms between the modes of the resonator. This is then used to derive a dimensionless equation describing the symmetry-breaking dynamics of two counterpropagating modes of a loop resonator and prove that cross-phase modulation is exactly twice as strong as self-phase modulation only in the case that the two counterpropagating modes are otherwise identical.},
author = {Silver, Jonathan M. and Del'Haye, Pascal},
doi = {10.1103/PhysRevA.105.023517},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-03-18},
peerreviewed = {Yes},
title = {{Generalized} theory of optical resonator and waveguide modes and their linear and {Kerr} nonlinear coupling},
volume = {105},
year = {2022}
}
@inproceedings{faucris.313149027,
abstract = {We describe various quantum protocols, all of which can be described by Bogoliubov transformations. Furthermore, a scheme by which correlated sidebands of a single spatial mode can be separated into two spatial modes is outlined. © 2005 IEEE.},
author = {Leuchs, Gerd and Andersen, Ulrik Lund and Glöckl, Oliver and Marquardt, Christoph and Heersink, Joel and Lorenz, Stefan},
booktitle = {2005 European Quantum Electronics Conference, EQEC '05},
date = {2005-06-12/2005-06-17},
doi = {10.1109/EQEC.2005.1567539},
faupublication = {yes},
isbn = {0780389735},
note = {Created from Fastlane, Scopus look-up},
pages = {374-},
peerreviewed = {unknown},
title = {{Generation} and applications of quantum engineered optical soliton pulses},
venue = {DEU},
volume = {2005},
year = {2005}
}
@article{faucris.112071564,
abstract = {Using a traveling-wave optical parametric amplifier with two orthogonally oriented type-I BBO crystals pumped by picosecond pulses, we generate vertically and horizontally polarized squeezed vacuum states within a broad frequency-angular range. Depending on the phase between these states, fluctuations in one or another Stokes parameter are suppressed below the shot-noise limit. Because of the large number of photon pairs produced, no local oscillator is required, and 3 dB squeezing is observed by means of direct detection. © 2009 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Iskhakov Timur, Chekhova Maria V, Leuchs Gerd},
doi = {10.1103/PhysRevLett.102.183602},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.genera},
pages = {183602},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Generation} and {Direct} {Detection} of {Broadband} {Mesoscopic} {Polarization}-{Squeezed} {Vacuum}},
volume = {102},
year = {2009}
}
@inproceedings{faucris.288243130,
address = {Dallas, USA},
author = {Eichler, Christopher and et al.},
author_hint = {Eichler C., Bozyigit D., Lang C., Baur M., Steffen L., Fink J., Filipp S., Wallraff A.},
booktitle = {APS March Meeting},
date = {2011-03-21},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Generation} and {Reconstruction} of {Two} {Mode} {Squeezed} {States} in the {Microwave} {Domain}},
url = {http://www.aps.org/meetings/march/},
venue = {Dallas, USA},
year = {2011}
}
@article{faucris.213321585,
abstract = {We demonstrate experimentally and numerically that in fiber tips as they are used in NSOMs azimuthally polarized electrical fields (|Eazi|2 / |Etot|2 $≈$55% $±$ 5% for \textgreekl0= 1550 nm), respectively subwavelength confined (FWHM $≈$450 nm $≈$\textgreekl0/3.5) magnetic fields, are generated for a certain tip aperture diameter (d = 1.4 \textgreekmm). We attribute the generation of this field distribution in metal-coated fiber tips to symmetry breaking in the bend and subsequent plasmonic mode filtering in the truncated conical taper.},
author = {Ploss, Daniel and Kriesch, Arian and Pfeifer, Hannes and Banzer, Peter and Peschel, Ulf},
doi = {10.1364/OE.22.013744},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-13},
pages = {13744-13754},
peerreviewed = {Yes},
title = {{Generation} and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip},
volume = {22},
year = {2014}
}
@article{faucris.116406224,
author = {Quabis, Susanne and Dorn, Ralf and Leuchs, Gerd},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.genera},
pages = {597-600},
peerreviewed = {Yes},
title = {{Generation} of a radially polarized beam of high quality},
volume = {81},
year = {2005}
}
@article{faucris.122010724,
abstract = {We demonstrate the generation of an optical dipole wave suitable for the process of efficiently coupling single quanta of light and matter in free space. We employ a parabolic mirror for the conversion of a transverse beam mode to a focused dipole wave and show the required spatial and temporal shaping of the mode incident onto the mirror. The results include a proof of principle correction of the parabolic mirror's aberrations. For the application of exciting an atom with a single photon pulse, we demonstrate the creation of a suitable temporal pulse envelope. We infer coupling strengths of 89% and success probabilities of up to 87% for the application of exciting a single atom for the current experimental parameters. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2012.},
author = {Golla, Andrea and Chalopin, Benoit and Bader, Marianne and Harder, Irina and Mantel, Klaus and Maiwald, Robert and Lindlein, Norbert and Sondermann, Markus and Leuchs, Gerd},
doi = {10.1140/epjd/e2012-30293-y},
faupublication = {yes},
journal = {European Physical Journal D},
peerreviewed = {Yes},
title = {{Generation} of a wave packet tailored to efficient free space excitation of a single atom},
volume = {66},
year = {2012}
}
@inproceedings{faucris.229195784,
abstract = {Supercontinuum (SC) generation in solid-core photonic crystal fibres (PCFs) is well established and has diverse applications in science and technology [1,2]. In a conventional SC, the polarization state is not maintained over the whole spectrum due to cross-phase modulation and may in addition vary with power. Recently, it has been reported that continuously twisted PCFs exhibit circular birefringence [3,4]. Here we report the first experimental demonstration of a twisted PCF that robustly maintains circular polarization state across the whole spectrum, independent of power.},
author = {Sopalla, R. and Wong, G. K.L. and Joly, Nicolas and Jiang, X. and Frosz, M. H. and Ahmed, G. and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872438},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Generation} of broad-band circularly polarised supercontinuum in chiral photonic crystal fibre},
venue = {Munich},
year = {2019}
}
@article{faucris.224988456,
abstract = {We compare the properties of the broadband supercontinuum (SC) generated in twisted and untwisted solid-core photonic crystal fibers when pumped by circularly polarized 40 picosecond laser pulses at 1064 nm. In the helically twisted fiber, fabricated by spinning the preform during the draw, the SC is robustly circularly polarized across its entire spectrum whereas, in the straight fiber, axial fluctuations in linear birefringence and polarization-dependent nonlinear effects cause the polarization state to vary randomly with the wavelength. Theoretical modelling confirms the experimental results. Helically twisted photonic crystal fibers permit the generation of pure circularly polarized SC light with excellent polarization stability against fluctuations in input power and environmental perturbations.},
author = {Sopalla, Rafal P. and Wong, Gordon K.L. and Joly, Nicolas and Frosz, Michael H. and Jiang, Xin and Ahmed, Goran and Russell, Philip St. John},
doi = {10.1364/OL.44.003964},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2019-08-23},
pages = {3964-3967},
peerreviewed = {Yes},
title = {{Generation} of broadband circularly polarized supercontinuum light in twisted photonic crystal fibers},
volume = {44},
year = {2019}
}
@article{faucris.119962304,
abstract = {A report on generation of a continuous variable Einstein-Podolsky-Rosen (EPR) entanglement was presented using an optical fiber interferometer. Two independent squeezed beams were generated using Kerr nonlinearity. ERP entanglement was obtained between the output beams. Correlation of amplitude quadratures was measured below the quantum noise limit.},
author = {Leuchs, Gerd and et al.},
author_hint = {Silberhorn Ch., Lam P. K., Weiß O., König F., Korolkova Natalia, Leuchs Gerd},
doi = {10.1103/PhysRevLett.86.4267},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.genera},
pages = {4267-4270},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Generation} of continuous variable {Einstein}-{Podolsky}-{Rosen} entanglement via the {Kerr} nonlinearity in an optical fibre},
volume = {86},
year = {2001}
}
@article{faucris.122960464,
abstract = {We propose a scheme for the remote preparation of entangled matter qubits in free space. For this purpose, a setup of two opposing parabolic mirrors is considered, each one with a single ion trapped at its focus. To get the required entanglement in this extreme multimode scenario, we take advantage of the spontaneous decay, which is usually considered as an apparent nuisance. Using semiclassical methods, we derive an efficient photon-path representation to deal with this problem. We also present a thorough examination of the experimental feasibility of the scheme. The vulnerabilities arising in realistic implementations reduce the success probability, but leave the fidelity of the generated state unaltered. Our proposal thus allows for the generation of high-fidelity entangled matter qubits with high rate.},
author = {Trautmann, Nils and Bernad, Jozsef Zsolt and Sondermann, Markus and Alber, Gernot and Sanchez-Soto, Luis and Leuchs, Gerd},
doi = {10.1103/PhysRevA.90.063814},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
peerreviewed = {unknown},
title = {{Generation} of entangled matter qubits in two opposing parabolic mirrors},
volume = {90},
year = {2014}
}
@article{faucris.208823608,
abstract = {Measuring the Mth-order intensity correlation function of light emitted by two statistically independent thermal light sources may display N00N-like interferences of arbitrary order N = Ma center dot 2. We show that via a particular choice of detector positions one can isolate M-photon quantum paths where either all M photons are emitted from the same source or Ma center dot 2 photons are collectively emitted by both sources. The latter superposition displays N00N-like oscillations with N = Ma center dot 2 which may serve, e.g., in astronomy, for imaging two distant thermal sources with Ma center dot 2-fold increased resolution. We also discuss slightly modified detection schemes improving the visibility of the N00N-like interference pattern and present measurements verifying the theoretical predictions.},
author = {Bhatti, Daniel and Classen, Anton and Oppel, Steffen and Schneider, Raimund and von Zanthier, Joachim},
doi = {10.1140/epjd/e2018-90371-8},
faupublication = {yes},
journal = {European Physical Journal D},
peerreviewed = {Yes},
title = {{Generation} of {N00N}-like interferences with two thermal light sources},
volume = {72},
year = {2018}
}
@inproceedings{faucris.276457852,
abstract = {We successfully demonstrate squeezing of nanosecond pulses via self-induced transparency in a system of mercury vapor confined in a hollow core kagomé-style fiber.},
author = {Vogl, Ulrich and Sedlmeir, Florian and Joly, Nicolas Y. and Marquardt, Christoph and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2016-10-17/2016-10-21},
doi = {10.1364/FIO.2016.FW5F.4},
faupublication = {yes},
isbn = {9781943580194},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Generation} of non-classical light via selfinduced transparency in mercury-filled hollow core photonic crystal fibers},
venue = {Rochester, NY, USA},
year = {2016}
}
@article{faucris.121757724,
abstract = {We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear optical tools only. By means of a suitable multiphoton detection technique, erasing Welcher-Weg information, our proposed scheme allows the generation and measurement of an important class of entangled multiqubit state},
author = {Thiel, Christoph and von Zanthier, Joachim and Bastin, Thierry and Solano, Enrique and Agarwal, Girish S.},
doi = {10.1103/PhysRevLett.99.193602},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Generation} of symmetric dicke states of remote qubits with linear optics},
volume = {99},
year = {2007}
}
@article{faucris.106831604,
abstract = {We propose a scheme enabling the universal coupling of angular momentum of N remote noninteracting qubits using linear optical tools only. Our system consists of N single-photon emitters in a Lambda configuration that are entangled among their long-lived ground-state qubits through suitably designed measurements of the emitted photons. In this manner, we present an experimentally feasible algorithm that is able to generate any of the 2(N) symmetric and nonsymmetric total angular momentum eigenstates spanning the Hilbert space of the N-qubit compoun},
author = {Maser, Andreas and Schilling, Uwe and Bastin, T. and Solano, E. and Thiel, Christoph and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.79.033833},
faupublication = {yes},
journal = {Physical Review A},
keywords = {eigenvalues and eigenfunctions;ground states;Hilbert spaces;quantum computing;quantum entanglement;quantum optics},
peerreviewed = {Yes},
title = {{Generation} of total angular momentum eigenstates in remote qubits},
volume = {79},
year = {2009}
}
@incollection{faucris.118632624,
address = {Berlin},
author = {Lindlein, Norbert and Leuchs, Gerd},
booktitle = {Handbook of Lasers and Optics},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2007.nat.dphy.optik.1optik.geomet},
pages = {-},
peerreviewed = {unknown},
publisher = {Springer},
title = {{Geometrical} {Optics}},
year = {2007}
}
@article{faucris.276468899,
abstract = {The geometric Spin Hall Effect of Light (geometric SHEL) amounts to a polarization-dependent positional shift when a light beam is observed from a reference frame tilted with respect to its direction of propagation. Motivated by this intriguing phenomenon, the energy density of the light beam is decomposed into its Cartesian components in the tilted reference frame. This illustrates the occurrence of the characteristic shift and the significance of the effective response function of the detector. We introduce the concept of a tilted polarizing interface and provide a scheme for its experimental implementation. A light beam passing through such an interface undergoes a shift resembling the original geometric SHEL in a tilted reference frame. This displacement is generated at the polarizer and its occurrence does not depend on the properties of the detection system.We give explicit results for this novel type of geometric SHEL and show that at grazing incidence this effect amounts to a displacement of multiple wavelengths, a shift larger than the one introduced by Goos-Hänchen and Imbert-Fedorov effects. © 2011 Springer-Verlag.},
author = {Korger, J. and Aiello, Andrea and Gabriel, C. and Banzer, Peter and Kolb, T. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1007/s00340-011-4400-z},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {427-432},
peerreviewed = {Yes},
title = {{Geometric} {Spin} {Hall} {Effect} of {Light} at polarizing interfaces},
volume = {102},
year = {2011}
}
@article{faucris.123484284,
author = {Neugebauer, Martin and Banzer, Peter and Bauer, Thomas and Orlovas, Sergejus and Lindlein, Norbert and Aiello, Andrea and Leuchs, Gerd},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
pages = {013840},
peerreviewed = {Yes},
title = {{Geometric} spin {Hall} effect of light in tightly focused polarization-tailored light beams},
volume = {89(1)},
year = {2014}
}
@inproceedings{faucris.260827229,
author = {Berg-Johansen, Stefan and Töppel, Falk and Stiller, Birgit and Banzer, Peter and Ornigotti, M. and Giacobino, E. and Leuchs, Gerd and Aiello, Andrea and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2015-06-21/2015-06-25},
faupublication = {yes},
isbn = {9781467374750},
note = {CRIS-Team Scopus Importer:2021-06-29},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{GHz} kinematic sensing with classically entangled beams of light},
venue = {Munich},
year = {2015}
}
@article{faucris.213319854,
abstract = {Hybrid metal-dielectric photonic crystals assembled from an opal film coated by a gold film are designed in order to realize optical spectra that emanate from mixing Bloch modes in the opal and surface plasmon polaritons in corrugated gold films. The photonic crystal provides a spatial template for the gold film profile and modifies the electromagnetic vacuum in the vicinity to the gold layer. Reflectance spectroscopy was applied to deconvolute the plasmonic and photonic bandgap components in the optical response of hybrid crystals as opposite to their mixed appearance in the transmission spectra.},
author = {Ding, B. and Pemble, M. E. and Korovin, A. V. and Peschel, Ulf and Romanov, Sergey},
doi = {10.1007/s00339-011-6251-1},
faupublication = {yes},
journal = {Applied Physics A-Materials Science & Processing},
note = {EAM Import::2019-03-13},
pages = {889-894},
peerreviewed = {Yes},
title = {{Gold} film-terminated 3-dimensional photonic crystals},
volume = {103},
year = {2011}
}
@article{faucris.245901998,
abstract = {Point defects in hexagonal boron nitride have emerged as a promising quantum light source due to their bright and photostable room temperature emission. In this work, the incorporation of quantum emitters during chemical vapor deposition growth on a nickel substrate is studied. Combining a range of characterization techniques, it is demonstrated that the incorporation of quantum emitters is limited to (001) oriented nickel grains. Such emitters display improved emission properties in terms of brightness and stability. These emitters are further utilized and integrated with a compact optical antenna enhancing light collection from the sources. The hybrid device yields average saturation count rates of approximate to 2.9 x 10(6) cps and an average photon purity of g((2))(0) approximate to 0.1. The results advance the understanding of single photon emitter incorporation during chemical vapor deposition growth and demonstrate a key step towards compact devices for achieving maximum collection efficiency.},
author = {Mendelson, Noah and Morales-Inostroza, Luis and Li, Chi and Ritika, Ritika and Nguyen, Minh Anh Phan and Loyola-Echeverria, Jacqueline and Kim, Sejeong and Götzinger, Stephan and Toth, Milos and Aharonovich, Igor},
doi = {10.1002/adom.202001271},
faupublication = {yes},
journal = {Advanced Optical Materials},
note = {CRIS-Team WoS Importer:2020-11-27},
peerreviewed = {Yes},
title = {{Grain} {Dependent} {Growth} of {Bright} {Quantum} {Emitters} in {Hexagonal} {Boron} {Nitride}},
year = {2020}
}
@article{faucris.289310152,
abstract = {IceCube, a cubic-kilometer array of optical sensors built to detect atmospheric and astrophysical neutrinos between 1 GeV and 1 PeV, is deployed 1.45 km to 2.45 km below the surface of the ice sheet at the South Pole. The classification and reconstruction of events from the in-ice detectors play a central role in the analysis of data from IceCube. Reconstructing and classifying events is a challenge due to the irregular detector geometry, inhomogeneous scattering and absorption of light in the ice and, below 100 GeV, the relatively low number of signal photons produced per event. To address this challenge, it is possible to represent IceCube events as point cloud graphs and use a Graph Neural Network (GNN) as the classification and reconstruction method. The GNN is capable of distinguishing neutrino events from cosmic-ray backgrounds, classifying different neutrino event types, and reconstructing the deposited energy, direction and interaction vertex. Based on simulation, we provide a comparison in the 1 GeV-100 GeV energy range to the current state-of-the-art maximum likelihood techniques used in current IceCube analyses, including the effects of known systematic uncertainties. For neutrino event classification, the GNN increases the signal efficiency by 18% at a fixed background rate, compared to current IceCube methods. Alternatively, the GNN offers a reduction of the background (i.e. false positive) rate by over a factor 8 (to below half a percent) at a fixed signal efficiency. For the reconstruction of energy, direction, and interaction vertex, the resolution improves by an average of 13%-20% compared to current maximum likelihood techniques in the energy range of 1 GeV-30 GeV. The GNN, when run on a GPU, is capable of processing IceCube events at a rate nearly double of the median IceCube trigger rate of 2.7 kHz, which opens the possibility of using low energy neutrinos in online searches for transient events.},
author = {Abbasi, R. and Ackermann, M. and Adams, J. and Aggarwal, N. and Aguilar, J. A. and Ahlers, M. and Ahrens, M. and Alameddine, J. M. and Alves Jr, A. A. and Amin, N. M. and Andeen, K. and Anderson, T. and Anton, Gisela and Arguelles, C. and Ashida, Y. and Athanasiadou, S. and Axani, S. and Bai, X. and Balagopal, A. and Baricevic, M. and Barwick, S. W. and Basu, V. and Bay, R. and Beatty, J. J. and Becker, K-H and Tjus, J. Becker and Beise, J. and Bellenghi, C. and Benda, S. and Benzvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Bindig, D. and Blaufuss, E. and Blot, S. and Bontempo, F. and Book, J. Y. and Borowka, J. and Meneguolo, C. Boscolo and Boser, S. and Botner, O. and Bottcher, J. and Bourbeau, E. and Braun, J. and Brinson, B. and Brostean-Kaiser, J. and Burley, R. T. and Busse, R. S. and Campana, M. A. and Carnie-Bronca, E. G. and Chen, C. and Chen, Z. and Chirkin, D. and Choi, K. and Clark, B. A. and Classen, L. and Coleman, A. and Collin, G. H. and Connolly, A. and Conrad, J. M. and Coppin, Paul and Correa, Pablo and Countryman, S. and Cowen, D. F. and Cross, R. and Dappen, C. and Dave, P. and De Clercq, Catherine and Delaunay, J. J. and Lopez, D. Delgado and Dembinski, H. and Deoskar, K. and Desai, A. and Desiati, P. and De Vries, K. D. and De Wasseige, G. and Deyoung, T. and Diaz, A. and Diaz-Velez, J. C. and Dittmer, M. and Dujmovic, H. and Duvernois, M. A. and Ehrhardt, T. and Eller, P. and Engel, R. and Erpenbeck, H. and Evans, J. and Evenson, P. A. and Fan, K. L. and Fazely, A. R. and Fedynitch, A. and Feigl, N. and Fiedlschuster, Sebastian and Fienberg, A. T. and Finley, C. and Fischer, L. and Fox, D. and Franckowiak, A. and Friedman, E. and Fritz, A. and Furst, P. and Gaisser, T. K. and Gallagher, J. and Ganster, E. and Garcia, A. and Garrappa, S. and Gerhardt, L. and Ghadimi, A. and Glaser, C. and Glauch, T. and Glüsenkamp, Thorsten and Goehlke, N. and Gonzalez, J. G. and Goswami, S. and Grant, D. and Gray, S. J. and Gregoire, T. and Griswold, S. and Guenther, C. and Gutjahr, P. and Haack, C. and Hallgren, A. and Halliday, R. and Halve, L. and Halzen, F. and Hamdaoui, H. and Ha Minh, M. and Hanson, K. and Hardin, J. and Harnisch, A. A. and Hatch, P. and Haungs, A. and Helbing, K. and Hellrung, J. and Henningsen, F. and Heuermann, L. and Hickford, S. and Hill, C. and Hill, G. C. and Hoffman, K. D. and Hoshina, K. and Hou, W. and Huber, T. and Hultqvist, K. and Huennefeld, M. and Hussain, R. and Hymon, K. and In, S. and Iovine, N. and Ishihara, A. and Jansson, M. and Japaridze, G. S. and Jeong, M. and Jin, M. and Jones, B. J. P. and Kang, D. and Kang, W. and Kang, X. and Kappes, A. and Kappesser, D. and Kardum, L. and Karg, T. and Karl, M. and Karle, A. and Katz, Uli and Kauer, M. and Kelley, J. L. and Kheirandish, A. and Kin, K. and Kiryluk, J. and Klein, S. R. and Kochocki, A. and Koirala, R. and Kolanoski, H. and Kontrimas, T. and Koepke, L. and Kopper, C. and Koskinen, D. J. and Koundal, P. and Kovacevich, M. and Kowalski, M. and Kozynets, T. and Krupczak, E. and Kun, E. and Kurahashi, N. and Lad, N. and Gualda, C. Lagunas and Larson, M. J. and Lauber, F. and Lazar, J. P. and Lee, J. W. and Leonard, K. and Lincetto, M. and Liu, Q. R. and Liubarska, M. and Lohfink, E. and Love, C. and Mariscal, C. J. Lozano and Lu, L. and Lucarelli, F. and Ludwig, A. and Luszczak, W. and Lyu, Y. and Ma, W. Y. and Madsen, J. and Mahn, K. B. M. and Makino, Y. and Mancina, S. and Sainte, W. Marie and Marka, S. and Marka, Z. and Marsee, M. and Martinez-Soler, and Maruyama, R. and Mcelroy, T. and Mcnally, F. and Mead, J. and Meagher, K. and Mechbal, S. and Medina, A. and Meier, M. and Meighen-Berger, S. and Merckx, Y. and Micallef, J. and Mockler, D. and Montaruli, Teresa and Moore, R. W. and Morse, R. and Moulai, M. and Mukherjee, T. and Naab, R. and Nagai, R. and Naumann, U. and Nayerhoda, A. and Necker, J. and Neumann, M. and Niederhausen, H. and Nisa, M. U. and Nowicki, S. C. and Pollmann, A. Obertacke and Oehler, M. and Oeyen, B. and Olivas, A. and Orsoe, R. and Osborn, J. and Pandya, H. and Pankova, D. and Park, N. and Parker, G. K. and Paudel, E. N. and Paul, L. and De Los Heros, C. Perez and Peters, L. and Petersen, T. C. and Peterson, J. and Philippen, S. and Pieper, S. and Pizzuto, A. and Plum, M. and Popovych, Y. and Porcelli, A. and Rodriguez, M. Prado and Pries, B. and Procter-Murphy, R. and Przybylski, G. T. and Raab, C. and Rack-Helleis, J. and Rameez, M. and Rawlins, K. and Rechav, Z. and Rehman, A. and Reichherzer, P. and Renzi, G. and Resconi, E. and Reusch, S. and Rhode, Wolfgang and Richman, M. and Riedel, B. and Roberts, E. J. and Robertson, S. and Rodan, S. and Roellinghoff, G. and Rongen, M. and Rott, C. and Ruhe, T. and Ruohan, L. and Ryckbosch, D. and Cantu, D. Rysewyk and Safa, and Saffer, J. and Salazar-Gallegos, D. and Sampathkumar, P. and Herrera, S. E. Sanchez and Sandrock, A. and Santander, M. and Sarkar, Subir and Sarkar, Subir and Schaufel, M. and Schieler, H. and Schindler, Sabine and Schlueter, B. and Schmidt, T. and Schneider, Jessica and Schroder, F. G. and Schumacher, L. and Schwefer, G. and Sclafani, S. and Seckel, D. and Seunarine, S. and Sharma, A. and Shefali, S. and Shimizu, N. and Silva, M. and Skrzypek, B. and Smithers, B. and Snihur, R. and Soedingrekso, J. and Sogaard, A. and Soldin, D. and Spannfellner, C. and Spiczak, G. M. and Spiering, C. and Stamatikos, M. and Stanev, T. and Stein, R. and Stezelberger, T. and Sturwald, T. and Stuttard, T. and Sullivan, G. W. and Taboada, and Ter-Antonyan, S. and Thompson, W. G. and Thwaites, J. and Tilav, S. and Tollefson, K. and Tonnis, C. and Toscano, S. and Tosi, D. and Trettin, A. and Tung, C. F. and Turcotte, R. and Twagirayezu, J. P. and Ty, B. and Elorrieta, M. A. Unland and Upshaw, K. and Valtonen-Mattila, N. and Vandenbroucke, J. and Van Eijndhoven, Nick and Vannerom, D. and Van Santen, J. and Vara, J. and Veitch-Michaelis, J. and Verpoest, S. and Veske, D. and Walck, C. and Wang, W. and Watson, T. B. and Weaver, C. and Weigel, P. and Weindl, A. and Weldert, J. and Wendt, C. and Werthebach, J. and Weyrauch, M. and Whitehorn, N. and Wiebusch, C. H. and Willey, N. and Williams, D. R. and Wolf, M. and Wrede, Gerrit and Wulff, J. and Xu, X. W. and Yanez, J. P. and Yildizci, E. and Yoshida, S. and Yu, S. and Yuan, T. and Zhang, Z. and Zhelnin, P.},
doi = {10.1088/1748-0221/17/11/P11003},
faupublication = {yes},
journal = {Journal of Instrumentation},
note = {CRIS-Team WoS Importer:2023-02-17},
peerreviewed = {Yes},
title = {{Graph} {Neural} {Networks} for low-energy event classification & reconstruction in {IceCube}},
volume = {17},
year = {2022}
}
@article{faucris.245898634,
abstract = {We present the second-order gravitational dynamics for a spacetime inhabited by matter fields which feature vacuum birefringence. The derivation follows a perturbative variant of the covariant constructive gravity program, ensuring diffeomorphism invariance of gravity and causal compatibility of matter theory and gravity. A subsequent spatiotemporal split of this theory reveals the presence of unphysical artifacts, which are cured by imposing constraints on the gravitational constants, reducing their number from ten to seven. Within this sector, we derive the gravitational radiation emitted by a binary system in circular motion. The system emits massless waves, which correspond to the radiation predicted by Einstein gravity, but also massive waves, which are generated only above a certain angular frequency threshold and are unknown to Einstein gravity. A gravitational-wave detector modeled as a sphere of freely falling test masses shows quantitatively and qualitatively new behavior under the influence of this radiation. The result is a prediction of gravitational self-coupling from first principles, demonstrating the predictive power of covariant constructive gravity for modified gravity research, especially in the era of gravitational-wave astronomy.},
author = {Alex, Nils},
doi = {10.1103/PhysRevD.102.104017},
faupublication = {yes},
journal = {Physical Review D},
note = {CRIS-Team WoS Importer:2020-11-27},
peerreviewed = {Yes},
title = {{Gravitational} radiation from birefringent matter dynamics},
volume = {102},
year = {2020}
}
@article{faucris.108483144,
author = {Schwider, Johannes and Kellermann, Christine and Lindlein, Norbert and Rothau, Sergej and Mantel, Klaus},
faupublication = {yes},
journal = {arXiv},
pages = {--},
peerreviewed = {No},
title = {{Grazing} incidence interferometry for rough convex aspherics},
volume = {arXiv:1612.08046},
year = {2016}
}
@inproceedings{faucris.227102860,
author = {Rothau, Sergej and Schwider, Johannes and Mantel, Klaus and Lindlein, Norbert},
booktitle = {Optical Measurement Systems for Industrial Inspection XI},
doi = {10.1117/12.2525599},
editor = {Lehmann P, Osten W, Jr. AAG},
faupublication = {yes},
keywords = {interferometry, grazing incidence, rough aspherics, phase shifting, surface measurement},
pages = {381 -- 394},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Grazing} incidence interferometry for testing rough asperics},
venue = {Munich},
volume = {11056},
year = {2019}
}
@inproceedings{faucris.262180634,
address = {BELLINGHAM},
author = {Rothau, Sergey and Mantel, K. and Lindlein, Norbert},
booktitle = {OPTICS AND PHOTONICS FOR ADVANCED DIMENSIONAL METROLOGY},
doi = {10.1117/12.2555082},
faupublication = {yes},
month = {Jan},
note = {CRIS-Team WoS Importer:2021-07-30},
peerreviewed = {unknown},
publisher = {SPIE-INT SOC OPTICAL ENGINEERING},
title = {{Grazing} incidence interferometry for testing rough aspherics: experimental results and data analysis},
year = {2021}
}
@article{faucris.120105304,
abstract = {Cylinder symmetry of test objects allows grazing incidence tests. Here we propose the use of two diffractive optical elements (DOEs) instead of a single DOE in perpendicular incidence. The splitting of the optical function of the DOEs allows low spatial frequencies in the diffractive elements. In fact, the diffractive structures are curves parallel to the meridian of the cylinder lens. Here an interferometric test is described where identical DOEs serve as beamsplitter and combiner. The undiffracted wavefront serves as reference. Phase shifting evaluations are possible by axial translations of one of the DOEs. The effective wavelength can be chosen within wide limits. Actually, we used a pitch of 5 μm, which is identical to the effective wavelength of the test. A surface deviation of 2.5 μm corresponds to a fringe distance. The interferometric test enables rms values of better than 20 nm for any aspheric geometry of the meridian curve, even with lenses having numerical apertures up to 0.9.},
author = {Lindlein, Norbert and et al.},
author_hint = {Schwider Johannes, Lindlein Norbert, Schreiner Roland, Lamprecht Jürgen},
doi = {10.1088/1464-4258/4/4/352},
faupublication = {yes},
journal = {Journal of Optics A-Pure and Applied Optics},
keywords = {Computer-generated holograms; Interferometers; Phase shifting interferometry},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.grazin},
pages = {10-16},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Grazing} incidence test for cylindrical microlenses with high numerical aperture},
volume = {4},
year = {2002}
}
@article{faucris.123082784,
abstract = {The self-catalyzed growth of vertically aligned and hexagonally shaped GaN micro- and nanorods on graphene transferred onto sapphire is achieved through metal-organic vapor phase epitaxy. However, a great influence of the underlying substrate is evident, since vertically aligned structures with a regular shape could not be grown on graphene transferred to SiO2. The optical properties of the regular GaN nanorods were investigated by spatially and spectrally resolved cathodoluminescence showing defect related emission only near the interface between the sapphire substrate and nanorods but not from their upper part. Micro-raman spectroscopy confirms that the single-layer graphene remains virtually unchanged in terms of the Raman signal, even after undergoing high temperatures (∼1200 °C) during nanorod growth. Furthermore, Raman mapping demonstrates that GaN structures predominantly grow on defective parts of graphene, giving new insight into the nucleation and growth mechanism of semiconductors on graphene. To validate the conductivity of graphene, when being attached to the sapphire substrate and after the nanorod growth, current-voltage investigations were carried out on single, as-grown, GaN nanorods with a nanoprober in a scanning electron microscope. These measurements demonstrate the viability of graphene as a conductive electrode, for example, as a back contact for GaN nanorods grown on insulating sapphire.},
author = {Heilmann, Martin and Sarau, George and Göbelt, Manuela and Latzel, Michael and Sadhujan, Sumesh and Tessarek, Christian and Christiansen, Silke},
doi = {10.1021/cg5015219},
faupublication = {yes},
journal = {Crystal Growth and Design},
pages = {2079-2086},
peerreviewed = {Yes},
title = {{Growth} of {GaN} micro- and nanorods on graphene-covered sapphire: {Enabling} conductivity to semiconductor nanostructures on insulating substrates},
volume = {15},
year = {2015}
}
@inproceedings{faucris.313148517,
abstract = {In silica glass fibers, thermally excited acoustic phonons scatter light into the beam propagating in the forward direction. At acoustic frequencies up to several hundreds of megahertz, the wave vectors of the phonons interacting with the light propagate essentially transversally to the fiber axis. This effect is known as Guided Acoustic Wave Brillouin Scattering (GAWBS) and leads to phase and polarization noise in the guided light. For fiber-based quantum optics experiments, this excess noise is a major limitation. In Photonic Crystal Fibers (PCFs), light is guided by a microstructure simultaneously acting as a 2D transversal phononic crystal which modifies the acoustic noise spectrum. We demonstrate a GAWBS-noise reduction in commercially available PCFs. This gives rise to the prospect of fiber-based quantum optic devices exhibiting less excess noise, thus resulting in higher quantum state purity. Further improvement can be achieved by tailoring the photonic microstructure such that a reduction of phonon noise by design is achieved. © 2007 IOP Publishing Ltd.},
author = {Elser, Dominique Alexander and Wittmann, Christoffer and Andersen, Ulrik Lund and Glöckl, Oliver and Lorenz, Stefan and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Journal of Physics: Conference Series},
date = {2007-07-15/2007-07-20},
doi = {10.1088/1742-6596/92/1/012108},
editor = {Bernard Perrin},
faupublication = {yes},
note = {Created from Fastlane, Scopus look-up},
pages = {012108},
peerreviewed = {unknown},
publisher = {Institute of Physics Publishing},
title = {{Guided} acoustic wave {Brillouin} scattering in photonic crystal fibers},
url = {https://iopscience.iop.org/article/10.1088/1742-6596/92/1/012108/meta},
venue = {Paris},
volume = {92},
year = {2007}
}
@article{faucris.236254033,
abstract = {We discuss an implementation of the minimum error state discrimination measurement, originally introduced by Helstrom [Quantum Detection and Estimation Theory (Academic Press, New York, 1976)]. In this implementation, instead of performing the optimal projective measurement directly on the system, it is first entangled to an ancillary system and the measurement is performed on the ancilla. We show that, by an appropriate choice of the entanglement transformation, the Helstrom bound can be attained. The advantage of this approach is twofold. First, it provides an implementation when the optimal projective measurement cannot be directly performed. For example, in the case of continuous variable states (binary and N phase-shifted coherent signals), the available detection methods, photon counting and homodyning, are insufficient to perform the required cat-state projection. In the case of symmetric states, the square-root measurement is optimal, but it is not easy to perform directly for more than two states. Our approach provides a feasible alternative in both cases. Second, the measurement is nondestructive from the point of view of the original system and one has a certain amount of freedom in designing the post-measurement state, which can then be processed further.},
author = {Han, Rui and Leuchs, Gerd and Bergou, Janos A.},
doi = {10.1103/PhysRevA.101.032103},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2020-03-24},
peerreviewed = {Yes},
title = {{Helstrom} measurement: {A} nondestructive implementation},
volume = {101},
year = {2020}
}
@article{faucris.109062184,
abstract = {Incoherent scattering of photons off two remote atoms with a Lambda-level structure is used as a basic Young-type interferometer to herald long-lived entanglement of an arbitrary degree. The degree of entanglement, as measured by the concurrence, is found to be tunable by two easily accessible experimental parameters. Fixing one of them to certain values unveils an analog to the Malus' law. An estimate of the variation in the degree of entanglement due to uncertainties in an experimental realization is give},
author = {Schilling, Uwe and Thiel, Christoph and Solano, E. and Bastin, T. and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.80.022312},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Heralded} entanglement of arbitrary degree in remote qubits},
volume = {80},
year = {2009}
}
@article{faucris.111353264,
author = {Häusler, Gerd and Nkenke, Emeka and Neukam, Friedrich Wilhelm and et al.},
author_hint = {Nkenke Emeka, Maier Tobias, Benz Michaela, Wiltfang J., Holbach L.M., Kramer M., Häusler Gerd, Neukam Friedrich Wilhelm},
faupublication = {yes},
journal = {International Journal of Oral and Maxillofacial Surgery},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.hertel},
pages = {125-133},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Hertel} exophtalmometry versus computed tomography and optical {3D} imaging for the determination of the globe position in zygomatic fractures},
volume = {33},
year = {2004}
}
@article{faucris.215877043,
abstract = {Time-dependent currents in molecular junctions can be caused by structural fluctuations or interaction with external fields. In this paper, we demonstrate how the hierarchical quantum master equation approach can be used to study time-dependent transport in a molecular junction. This reduced density matrix methodology provides a numerically exact solution to the transport problem including time-dependent energy levels, molecule-lead coupling strengths and transitions between electronic states of the molecular bridge. Based on a representative model, the influence of a time-dependent molecule-lead coupling on the electronic current is analyzed in some detail.},
author = {Erpenbeck, André and Götzendörfer, Lukas and Schinabeck, Christian and Thoss, Michael},
doi = {10.1140/epjst/e2018-800083-0},
faupublication = {yes},
journal = {European Physical Journal - Special Topics},
note = {CRIS-Team WoS Importer:2019-04-12},
pages = {1981-1994},
peerreviewed = {Yes},
title = {{Hierarchical} quantum master equation approach to charge transport in molecular junctions with time-dependent molecule-lead coupling strengths},
volume = {227},
year = {2019}
}
@article{faucris.276448358,
abstract = {Quantum key distribution (QKD) promises information-theoretically secure communication and is already on the verge of commercialization. The next step will be to implement high-dimensional protocols in order to improve noise resistance and increase the data rate. Hitherto, no experimental verification of high-dimensional QKD in the single-photon regime has been conducted outside of the laboratory. Here, we report the realization of such a single-photon QKD system in a turbulent free-space link of 0.3 km over the city of Ottawa, taking advantage of both the spin and orbital angular momentum photonic degrees of freedom. This combination of optical angular momenta allows us to create a 4-dimensional quantum state; wherein, using a high-dimensional BB84 protocol, a quantum bit error rate of 11% was attained with a corresponding secret key rate of 0.65 bits per sifted photon. In comparison, an error rate of 5% with a secret key rate of 0.43 bits per sifted photon is achieved for the case of 2-dimensional structured photons. We thus demonstrate that, even through moderate turbulence without active wavefront correction, high-dimensional photon states are advantageous for securely transmitting more information. This opens the way for intracity high-dimensional quantum communications under realistic conditions.},
author = {Sit, Alicia and Bouchard, Frederic and Fickler, Robert and Gagnon-Bischoff, Jeremie and Larocque, Hugo and Heshami, Khabat and Elser, Dominique and Peuntinger, Christian and Günthner, Kevin and Heim, Bettina and Marquardt, Christoph and Leuchs, Gerd and Boyd, Robert W. and Karimi, Ebrahim},
doi = {10.1364/OPTICA.4.001006},
faupublication = {yes},
journal = {Optica},
keywords = {Free-space optical communication; Optical vortices; Quantum cryptography},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {1006-1010},
peerreviewed = {Yes},
title = {{High}-dimensional intracity quantum cryptography with structured photons},
volume = {4},
year = {2017}
}
@article{faucris.213315149,
abstract = {All-solid photonic crystal fibers (PCFs) are created by pressure-assisted filling of low-melting-point chalcogenide and tellurite glasses into silica matrix fibers with channel diameters as small as 200~nm. Overcoming to a large extent the problem of viscosity and, thus, process incompatibility of silica and non-silicate optical glasses, the technique provides a unique way of producing waveguiding devices with high core-cladding index-contrast, high optical non-linearity and a transmission range that extends into the mid infrared. In this paper, as a prerequisite for waveguide production, the rheologic properties and controlled flow of highly-viscous liquids under geometrically confined conditions are considered, and deviations from Newtonian behavior are discussed. Because the filling process requires only very small quantities of filling material that do not come into contact with the environment, and because ultra-high cooling rates can be achieved, the technique enables the use of difficult-to-handle or reactive optical glasses.},
author = {Da, Ning and Wondraczek, Lothar and Schmidt, Markus A. and Granzow, Nicolai and Russell, Philip St. John},
doi = {10.1016/j.jnoncrysol.2010.07.002},
faupublication = {yes},
journal = {Journal of Non-Crystalline Solids},
note = {EAM Import::2019-03-13},
pages = {1829-1836},
peerreviewed = {Yes},
title = {{High} index-contrast all-solid photonic crystal fibers by pressure-assisted melt infiltration of silica matrices},
volume = {356},
year = {2010}
}
@article{faucris.230055867,
abstract = {We report on a highly efficient experimental scheme for the generation of deep-ultraviolet (UV) ultrashort light pulses using four-wave mixing in gas-filled kagomé-style photonic crystal fiber. By pumping with ultrashort, few microjoule pulses centered at 400 nm, we generate an idler pulse at 266 nm and amplify a seeded signal at 800 nm. We achieve remarkably high pump-to-idler energy conversion efficiencies of up to 38%. Although the pump and seed pulse durations are ∼100 fs, the generated UV spectral bandwidths support sub-15 fs pulses. These can be further extended to support few-cycle pulses. Four-wave mixing in gas-filled hollow-core fibers can be scaled to high average powers and different spectral regions such as the vacuum UV (100–200 nm).},
author = {Belli, Federico and Abdolvand, Amir and Travers, John C. and Russell, Philip St. John},
doi = {10.1364/OL.44.005509},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2019-12-03},
pages = {5509-5512},
peerreviewed = {Yes},
title = {{Highly} efficient deep {UV} generation by four-wave mixing in gas-filled hollow-core photonic crystal fiber},
volume = {44},
year = {2019}
}
@inproceedings{faucris.276459068,
abstract = {We present a highly efficient narrow-band pair-photon source based on a crystalline whispering gallery mode resonator, which emits photons in exactly one spatiotemporal mode. © 2014 Optical Society of America.},
author = {Förtsch, Michael and Schunk, Gerhard and Josef Fürst, and Strekalov, Dmitry and Gerrits, Thomas and Stevens J., Martin J. and Sedlmeir, Florian and Schwefel G.L., Harald G.L. and Nam, Sae Woo and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2014-06-08/2014-06-13},
doi = {10.1364/cleo{\_}qels.2014.fw3a.6},
faupublication = {yes},
isbn = {9781557529992},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Highly} efficient generation of narrow-band single-mode photon pairs from a whispering gallery mode resonator},
venue = {USA},
year = {2014}
}
@article{faucris.276454878,
abstract = {We report a highly efficient source of narrow-band photon pairs based on parametric down-conversion in a crystalline whispering-gallery-mode resonator. Remarkably, each photon of a pair is detected in a single spatial and temporal mode, as witnessed by Glauber's autocorrelation function. We explore the phase-matching conditions in spherical geometries, and determine the requirements for single-mode operation. Understanding these conditions has allowed us to experimentally demonstrate a single-mode pair-detection efficiency of 1.13×106 pairs/s per mW pump power per 26.8 MHz bandwidth.},
author = {Foertsch, Michael and Schunk, Gerhard and Fuerst, Josef U. and Strekalov, Dmitry and Gerrits, Thomas and Stevens, Martin J. and Sedlmeir, Florian and Schwefel, Harald G. L. and Nam, Sae Woo and Leuchs, Gerd and Marquardt, Christoph},
doi = {10.1103/PhysRevA.91.023812},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Highly} efficient generation of single-mode photon pairs from a crystalline whispering-gallery-mode resonator source},
volume = {91},
year = {2015}
}
@article{faucris.110945604,
abstract = {Optical range sensors based on triangulation are widely used for the shape measurement of optically rough objects. The origin of the achievable measuring uncertainty of the distance is speckle noise. Speckle noise is unavoidable in spatially coherent systems. We demonstrate two experiments which prove that without spatial coherence, the measuring uncertainty can be dramatically reduced, and we present an on-line 3D-sensor for laser-material processing, exploiting this knowledge.},
author = {Häusler, Gerd and et al.},
author_hint = {Spellenberg B. , Herrmann J. M. , Häusler Gerd},
faupublication = {yes},
journal = {Optik},
keywords = {Coherent noise; Distance measurement; Laser material processing; Optical metrology; Triangulation},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.highly},
pages = {299-303},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Highly} improved range sensing - by reduction of spatial coherence},
volume = {112},
year = {2001}
}
@article{faucris.120613724,
abstract = {The modulation transfer function (MTF) is calculated for imaging with linearly, circularly and radially polarized light as well as for different numerical apertures and aperture shapes. Special detectors are only sensitive to one component of the electric energy density, e.g. the longitudinal component. For certain parameters this has advantages concerning the resolution when comparing to polarization insensitive detectors. It is also shown that in the latter case zeros of the MTF may appear which are purely due to polarization effects and which depend on the aperture angle. Finally some ideas are presented how to use these results for improving the resolution in lithography. © 2007 Optical Society of America.},
author = {Lindlein, Norbert and Quabis, Susanne and Peschel, Ulf and Leuchs, Gerd},
doi = {10.1364/OE.15.005827},
faupublication = {yes},
journal = {Optics Express},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.highnu},
pages = {5827-5842},
peerreviewed = {Yes},
title = {{High} numerical aperture imaging with different polarization patterns},
volume = {15},
year = {2007}
}
@inproceedings{faucris.107765064,
abstract = {Two solutions for high power terahertz radiation are discussed in this paper. The first solution is based on classical array theory, presenting an array of 55 elements, where we achieve upon combining the beams an increased directivity of 18 dB in comparison with the 8 dB of an isolated antenna. Measurements for the different elements of the array are presented. The second solution is the use of large area emitters, where the larger area allows a higher illumination power having a higher radiated power. © 2012 IEEE.},
author = {Andres-Garcia, Belen and Garcia-Munoz, Enrique and Segovia-Vargas, Daniel and Bauerschmidt, Sebastian and Döhler, Gottfried and Preu, Sascha and Malzer, Stefan and Lu, Hong and Gossard, Art},
booktitle = {6th European Conference on Antennas and Propagation, EuCAP 2012},
doi = {10.1109/EuCAP.2012.6206195},
faupublication = {yes},
pages = {1007-1010},
title = {{High} power terahertz photomixer arrays},
venue = {Prague},
year = {2012}
}
@inproceedings{faucris.233279688,
abstract = {We present a localization technique for an optically trapped
microparticle inside hollow-core photonic crystal fibers which is the
basis of a new generation of fiber optical sensors. A polystyrene
particle of diameter ~15 µm is optically trapped and moved inside the
hollow-core fiber by optical forces while its position is tracked using
coherent optical frequency domain reflectometry. We demonstrate that
this technique can locate the particle position with a standard
deviation of ~10 µm. By applying a time-apertured Fourier transform, the
dynamics of particle motion can be resolved with millisecond temporal
resolutio},
author = {Köppel, Max and Sharma, Abhinav and Renner, Esther and Xie, Shangran and Schmauß, Bernhard and Russell, P. St J.},
booktitle = {2019 IEEE SENSORS},
date = {2019-10-27/2019-10-30},
doi = {10.1109/SENSORS43011.2019.8956583},
faupublication = {yes},
isbn = {978-1-7281-1634-1},
month = {Jan},
peerreviewed = {unknown},
title = {{High}-{Precision} {Localization} of {Trapped} {Microparticles} inside {Hollow}-{Core} {Photonic} {Crystal} {Fibers} using {Coherent} {Optical} {Frequency} {Domain} {Reflectometry}},
url = {https://ieeexplore.ieee.org/document/8956583},
venue = {Montreal, QC},
year = {2020}
}
@article{faucris.245885380,
abstract = {The mobility of proteins and lipids within the cell, sculpted oftentimes by the organization of the membrane, reveals a great wealth of information on the function and interaction of these molecules as well as the membrane itself. Single particle tracking has proven to be a vital tool to study the mobility of individual molecules and unravel details of their behavior. Interferometric scattering (iSCAT) microscopy is an emerging technique well-suited for visualizing the diffusion of gold nanoparticle-labeled membrane proteins to a spatial and temporal resolution beyond the means of traditional fluorescent labels. We discuss the applicability of interferometric single particle tracking (iSPT) microscopy to investigate the minutia in the motion of a protein through measurements visualizing the mobility of the epidermal growth factor receptor in various biological scenarios on the live cell.},
author = {Taylor, Richard W. and Holler, Cornelia and Mahmoodabadi, Reza Gholami and Küppers, Michelle and Mirzaalian Dastjerdi, Houman and Zaburdaev, Vasily and Schambony, Alexandra and Sandoghdar, Vahid},
doi = {10.3389/fcell.2020.590158},
faupublication = {yes},
journal = {Frontiers in Cell and Developmental Biology},
keywords = {epidermal growth factor receptor; interferometric scattering microscopy; iSCAT; iSPT; live cell imaging; membrane organization; single particle tracking},
note = {CRIS-Team Scopus Importer:2020-11-27},
peerreviewed = {Yes},
title = {{High}-{Precision} {Protein}-{Tracking} {With} {Interferometric} {Scattering} {Microscopy}},
volume = {8},
year = {2020}
}
@article{faucris.286406456,
abstract = {We demonstrate generation of 7.6 fs near-UV pulses centered at 400 nm via 8-fold soliton-effect self-compression in an Ar-filled hollow-core kagome-style photonic crystal fiber with ultrathin core walls. Analytical calculations of the effective compression length and soliton order permit adjustment of the experimental parameters, and numerical modeling of the nonlinear pulse dynamics in the fiber accurately predicts the spectrotemporal profiles of the self-compressed pulses. After compensation of phase distortion introduced by the optical elements along the beam path from the fiber to the diagnostics, 71% of the pulse energy was in the main temporal lobe, with peak powers in excess of 0.2 GW. The convenient setup opens up new opportunities for time-resolved studies in spectroscopy, chemistry, and materials science. (c) 2022 Chinese Laser Press},
author = {Luan, Jie and Russell, Philip St. J. and Novoa, David},
doi = {10.1364/PRJ.464376},
faupublication = {yes},
journal = {Photonics Research},
note = {CRIS-Team WoS Importer:2022-12-09},
pages = {2405-2409},
peerreviewed = {Yes},
title = {{High}-quality 8-fold self-compression of ultrashort near-{UV} pulses in an {Ar}-filled ultrathin-walled photonic crystal fiber},
volume = {10},
year = {2022}
}
@inproceedings{faucris.200711340,
abstract = {Optically trapped “flying particles” inside hollow core photonic crystal
fiber (HC-PCF) can be used as multiparameter sensors of, for example,
temperature, radiation levels or external electric fields. They
represent a new type of optical fiber sensor, offering a spatial
resolution that is only limited by the particle size, while being
functionally reconfigurable. Here we demonstrate accurate measurement of
the axial position of flying particles using incoherent optical
frequency domain reflectometry in combination with model-based
estimation processing. The approach allows to measure the particle
position inside the HC-PCF with a precision of ~140 μ},
author = {Werzinger, Stefan and Bykov, Dmitry S. and Zeltner, Richard and Machnev, Andrey and Köppel, Max and Xie, Shangran and Schmauß, Bernhard and Russell, Philip St. John},
booktitle = {IEEE Sensors Conference},
doi = {10.1109/icsens.2017.8234084},
faupublication = {yes},
peerreviewed = {unknown},
title = {{High} resolution position measurement of “flying particles” inside hollow-core photonic crystal fiber},
venue = {Glasgow, GB},
year = {2017}
}
@inproceedings{faucris.229198968,
abstract = {Transmembrane proteins exhibit a wide variety of mobility in live cells, including diffusion in the plasma membrane and directed transport into the cell via endocytosis. Although a great deal has been uncovered about the biochemistry underlying these processes, their real-time visualisation in situ with the necessary nanoscopic resolution remains a daunting experimental challenge. Conventional microscopies rely on fluorescent labelling to monitor diffusion of such proteins within live cells. The resolution in both space and time by which one can successfully determine the position of the protein is curtailed by the finite and limited emission rate of the fluorophore.},
author = {Taylor, Richard and Mahmoodabadi, Reza Gholami and Schambony, Alexandra and Sandoghdar, Vahid},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872206},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{High}-resolution, three-dimensional investigation of protein diffusion and trafficking in the live {HeLa} cell via interferometrie scattering microscopy ({iSCAT})},
venue = {Munich},
year = {2019}
}
@inproceedings{faucris.316277714,
abstract = {
There is a plethora of options for optical 3D-metrology. Inspired by the progress of digital holography, we discuss two questions: Can we implement all classical (non-holographic) sensors via digital holography? And even more interesting: Can digital holography enable options beyond classical sensors?
},
author = {Häusler, Gerd and Willomitzer, Florian},
booktitle = {DGsO-Proceedings 2023},
date = {2023-05-30/2023-06-03},
editor = {Deutsche Gesellschaft für Angewandte Optik, Eds. Christian Faber and Gerd Haeusler},
faupublication = {yes},
isbn = {urn:nbn:de:0287-2023-B013},
keywords = {holography; metrology; topography; 3-D;},
peerreviewed = {No},
title = {{Holographic} {Measurement} of {Surface} {Topography} - {Limits} and {New} {Options}},
url = {https://www.dgao-proceedings.de/download/124/124{\_}b13.pdf},
venue = {Berlin},
year = {2023}
}
@inproceedings{faucris.110470184,
author = {Lindlein, Norbert and et al.},
author_hint = {Falkenstörfer O., Lindlein Norbert, Keineonen T., Schwider Johannes},
booktitle = {EOS Topical Meetings Digest Series},
faupublication = {yes},
note = {UnivIS-Import:2015-03-05:Pub.1995.nat.dphy.optik.1optik.hologr},
pages = {15-18},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Holographic} microlens arrays},
volume = {5},
year = {1995}
}
@article{faucris.115150244,
author = {Harder, Irina and Lano, Maik and Lindlein, Norbert and Schwider, Johannes},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-04-14:Pub.2004.nat.dphy.optik.1optik.homoge},
pages = {99-107},
peerreviewed = {Yes},
title = {{Homogenization} and beam shaping with micro lens arrays},
volume = {5456},
year = {2004}
}
@inproceedings{faucris.109260184,
abstract = {Mostly, the typical light distribution of a light source, as a LED or an excimer laser, is not suitable for the application. The excimer laser beam for example shows a distinct elliptical Gaussian profile. As another example the layout of the light emitting chip and the reflector of a LED form an extremely inhomogeneous luminescent area. To achieve a better adapted beam profile a homogenizing setup with beam shaping qualities can be used. In this talk two setups for homogenization with the help of refractive micro lens arrays are shown and compared. The main attention is turned on the influence of the numerical aperture of the micro lenses, the limitations due to the spatial coherence degree and the difficulties of the alignment of the systems. In addition, a diffractive solution of homogenization for spatial partially coherence is presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Harder I., Lano M., Lindlein N., Schwider J.},
booktitle = {Photon Management},
doi = {10.1117/12.549015},
editor = {Wyrowski F.},
faupublication = {yes},
keywords = {Beam shaping; Excimer; Homogenization; LED; Microlens array; Spatial coherence},
pages = {99-107},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Homogenization} and beam shaping with microlens arrays},
venue = {Strasbourg},
volume = {5456},
year = {2004}
}
@inproceedings{faucris.118757584,
author = {Häusler, Gerd},
booktitle = {Proceedings of Third International Conference on 3-DDigital Imaging and Modeling},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.howmuc},
pages = {281},
title = {{How} much {3D}-{Information} can weacquire? {Optical} {Range} {Sensors} at the {Physical} {Limit}, and where to apply them},
venue = {Quebec, Canada},
year = {2001}
}
@inproceedings{faucris.111356344,
author = {Häusler, Gerd},
booktitle = {Proceedings of ICO 04, Tokyo},
faupublication = {yes},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.howmuc},
pages = {611-612},
peerreviewed = {Yes},
title = {{How} much should we pay for optical 3d-sensors? - a respectable scientific question},
venue = {Tokyo},
year = {2004}
}
@article{faucris.216710511,
abstract = {Structured illumination allows for satisfying the first Kerker condition of in-phase perpendicular electric and magnetic dipole moments in any isotropic scatterer that supports electric and magnetic dipole resonances. The induced Huygens' dipole may be utilized for unidirectional coupling to waveguide modes that propagate transverse to the excitation beam. We study two configurations of a Huygens' dipole, longitudinal electric and transverse magnetic dipole moments or vice versa. We experimentally show that only the radially polarized emission of the first and azimuthally polarized emission of the second configuration are directional in the far field. This polarization selectivity implies that directional excitation of either transverse magnetic (TM) or transverse electric (TE) waveguide modes is possible. Applying this concept to a single dielectric nanoantenna excited with structured light, we are able to experimentally achieve scattering directivities of around 23 and 18 dB in TM and TE modes, respectively. This strong directivity paves the way for tunable polarization-controlled nanoscale light routing and applications in optical metrology, localization microscopy, and on-chip optical devices.},
author = {Nechayev, Sergey and Eismann, Jörg and Neugebauer, Martin and Wozniak, Pawel and Bag, Ankan and Leuchs, Gerd and Banzer, Peter},
doi = {10.1103/PhysRevA.99.041801},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2019-04-30},
peerreviewed = {Yes},
title = {{Huygens}' dipole for polarization-controlled nanoscale light routing},
volume = {99},
year = {2019}
}
@article{faucris.213318386,
abstract = {We review the recently emerged class of hybrid metal-dielectric colloidal photonic crystals. The hybrid approach is understood as the combination of a dielectric photonic crystal with a continuous metal film. It allows to achieve a strong modification of the optical properties of photonic crystals by involving the light scattering at electronic excitations in the metal component into moulding of the light flow in series to the diffraction resonances occurring in the body of the photonic crystal. We consider different realizations of hybrid plasmonic-photonic crystals based on two- and three-dimensional colloidal photonic crystals in association with flat and corrugated metal films. In agreement with model calculations, different resonance phenomena determine the optical response of hybrid crystals leading to a broadly tuneable functionality of these crystals.},
author = {Romanov, Sergei G. and Korovin, Alexander V. and Regensburger, Alois and Peschel, Ulf},
doi = {10.1002/adma.201100460},
faupublication = {yes},
journal = {Advanced Materials},
note = {EAM Import::2019-03-13},
pages = {2515-2533},
peerreviewed = {unknown},
title = {{Hybrid} {Colloidal} {Plasmonic}-{Photonic} {Crystals}},
volume = {23},
year = {2011}
}
@inproceedings{faucris.241188848,
abstract = {Control on the optical response of 2-dimensional colloidal photonic crystals was achieved by combining them with thin metal films. In such hybrids the light transport depends on the parameters of the sphere lattice and the topology of the metal film. This approach allows mixing Bloch modes and surface plasmon polariton modes in the total optical response of hybrid architectures. Stronger modification of the hybrid's optical properties was achieved in the case of tighter light confinement.},
author = {Bahrami, M. Reza and Lobaz, Volodymyr and Peukert, Wolfgang and Korovin, Alexander V. and Peschel, Ulf and Romanov, Sergei G.},
booktitle = {13th International Conference on Transparent Optical Networks (ICTON)},
date = {2011-06-26/2011-06-30},
editor = {IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA},
faupublication = {yes},
keywords = {hybrid photonic crystal;surface plasmon polariton;optical transmission},
peerreviewed = {unknown},
title = {{Hybrid} {Metal}-{Dielectric} {Photonic} {Crystals} with {Enhanced} {Plasmonic}-{Photonic} {Interaction}},
venue = {Stockholm},
year = {2011}
}
@article{faucris.241527472,
abstract = {Until recently, planar carbonaceous structures such as graphene did not show any birefringence under normal incidence. In contrast, a recently reported novel orthorhombic carbonaceous structure with metal nanoparticle inclusions does show intrinsic birefringence, outperforming other natural orthorhombic crystalline materials. These flake-like structures self-assemble during a laser-induced growth process. In this article, we explore the potential of this novel material and the design freedom during production. We study in particular the dependence of the optical and geometrical properties of these hybrid carbon-metal flakes on the fabrication parameters. The influence of the laser irradiation time, concentration of the supramolecular complex in the solution, and an external electric field applied during the growth process are investigated. In all cases, the self-assembled metamaterial exhibits a strong linear birefringence in the visible spectral range, while the wavelength-dependent attenuation was found to hinge on the concentration of the supramolecular complex in the solution. By varying the fabrication parameters one can steer the shape and size of the flakes. This study provides a route towards fabrication of novel hybrid carbon-metal flakes with tailored optical and geometrical properties.},
author = {Butt, Muhammad Abdullah and Mamonova, Daria and Petrov, Yuri and Proklova, Alexandra and Kritchenkov, Ilya and Manshina, Alina and Banzer, Peter and Leuchs, Gerd},
doi = {10.3390/nano10071376},
faupublication = {yes},
journal = {Nanomaterials},
note = {CRIS-Team WoS Importer:2020-08-14},
peerreviewed = {Yes},
title = {{Hybrid} {Orthorhombic} {Carbon} {Flakes} {Intercalated} with {Bimetallic} {Au}-{Ag} {Nanoclusters}: {Influence} of {Synthesis} {Parameters} on {Optical} {Properties}},
volume = {10},
year = {2020}
}
@article{faucris.233254279,
abstract = {The most common source of entangled photons is spontaneous parametric down-conversion (SPDC). The degree of energy and momentum entanglement in SPDC is determined by the nonlinear interaction volume. By reducing the length of a highly nonlinear material, we relax the longitudinal phase-matching condition and reach record levels of transverse momentum entanglement. The degree of entanglement is estimated using both correlation measurements and stimulated emission tomography in wave-vector space. The high entanglement of the state in wave-vector space can be used to massively increase the quantum information capacity of photons, but more interestingly the equivalent state measured in position space is correlated over distances far less than the photon wavelength. This property promises to improve the resolution of many quantum imaging techniques beyond the current state of the art.},
author = {Okoth, Cameron and Kovlakov, E. and Boensel, F. and Cavanna, A. and Straupe, S. and Kulik, S. P. and Chekhova, Maria},
doi = {10.1103/PhysRevA.101.011801},
faupublication = {yes},
journal = {Physical Review A},
month = {Jan},
note = {CRIS-Team WoS Importer:2020-02-04},
peerreviewed = {Yes},
title = {{Idealized} {Einstein}-{Podolsky}-{Rosen} states from non-phase-matched parametric down-conversion},
volume = {101},
year = {2020}
}
@article{faucris.276455614,
abstract = {Identifying the mode numbers in whispering-gallery mode resonators (WGMRs) is important for tailoring them to experimental needs. Here we report on a novel experimental mode analysis technique based on the combination of frequency analysis and far-field imaging for high mode numbers of large WGMRs. The radial mode numbers q and the angular mode numbers p = l-m are identified and labeled via far-field imaging. The polar mode numbers l are determined unambiguously by fitting the frequency differences between individual whispering gallery modes (WGMs). This allows for the accurate determination of the geometry and the refractive index at different temperatures of the WGMR. For future applications in classical and quantum optics, this mode analysis enables one to control the narrow-band phase-matching conditions in nonlinear processes such as second-harmonic generation or parametric down-conversion.},
author = {Schunk, Gerhard and Fuerst, Josef U. and Foertsch, Michael and Strekalov, Dmitry V. and Vogl, Ulrich and Sedlmeir, Florian and Schwefel, Harald G. L. and Leuchs, Gerd and Marquardt, Christoph},
doi = {10.1364/OE.22.030795},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {30795-30806},
peerreviewed = {Yes},
title = {{Identifying} modes of large whispering-gallery mode resonators from the spectrum and emission pattern},
volume = {22},
year = {2014}
}
@article{faucris.217787678,
abstract = {Double-β-decay involves the simultaneous conversion of two neutrons into two protons, and the emission of two electrons and two neutrinos; the neutrinoless process, although not yet observed, is thought to involve the emission of the two electrons but no neutrinos. The search for neutrinoless-double-β-decay probes fundamental properties of neutrinos, including whether or not the neutrino and antineutrino are distinct particles. Double-β-decay detectors are large and expensive, so it is essential to achieve the highest possible sensitivity with each study, and removing spurious contributions (‘background’) from detected signals is crucial. In the nEXO neutrinoless-double-β-decay experiment, the identification, or ‘tagging’, of the
136
Ba daughter atom resulting from the double-β decay of
136
Xe provides a technique for discriminating background. The tagging scheme studied here uses a cryogenic probe to trap the barium atom in a solid xenon matrix, where the barium atom is tagged through fluorescence imaging. Here we demonstrate the imaging and counting of individual barium atoms in solid xenon by scanning a focused laser across a solid xenon matrix deposited on a sapphire window. When the laser irradiates an individual atom, the fluorescence persists for about 30 seconds before dropping abruptly to the background level—a clear confirmation of one-atom imaging. Following evaporation of a barium deposit, the residual barium fluorescence is 0.16 per cent or less. Our technique achieves the imaging of single atoms in a solid noble element, establishing the basic principle of barium tagging for nEXO.},
author = {Chambers, C. and Walton, T. and Fairbank, D. and Craycraft, A. and Yahne, D. R. and Todd, J. and Iverson, A. and Fairbank, W. and Alamre, A. and Albert, J. B. and Anton, Gisela and Arnquist, I. J. and Badhrees, I. and Barbeau, P. S. and Beck, D. and Belov, V. and Bhatta, T. and Bourque, F. and Brodsky, J. P. and Brown, E. and Brunner, T. and Burenkov, A. and Cao, G. F. and Cao, L. and Cen, W. R. and Charlebois, S. A. and Chiu, M. and Cleveland, B. and Coon, M. and Côté, M. and Cree, W. and Dalmasson, J. and Daniels, T. and Darroch, L. and Daugherty, S. J. and Daughhetee, J. and Delaquis, S. and Der Mesrobian-Kabakian, A. and DeVoe, R. and Dilling, J. and Ding, Y. Y. and Dolinski, M. J. and Dragone, A. and Echevers, J. and Fabris, L. and Farine, J. and Feyzbakhsh, S. and Fontaine, R. and Fudenberg, D. and Gallina, G. and Giacomini, G. and Gornea, R. and Gratta, G. and Hansen, E. V. and Heffner, M. and Hoppe, E. W. and Hößl, Jürgen and House, A. and Hufschmidt, Patrick and Hughes, M. and Ito, Y. and Jamil, A. and Jessiman, C. and Jewell, M. J. and Jiang, X. S. and Karelin, A. and Kaufman, L. J. and Kodroff, D. and Koffas, T. and Kravitz, S. and Krücken, R. and Kuchenkov, A. and Kumar, K. S. and Lan, Y. and Larson, A. and Leonard, D. S. and Li, G. and Li, S. and Li, Z. and Licciardi, C. and Lin, Y. H. and Lv, P. and MacLellan, R. and Michel, Thilo and Mong, B. and Moore, D. C. and Murray, K. and Newby, R. J. and Ning, Z. and Njoya, O. and Nolet, F. and Nusair, O. and Odgers, K. and Odian, A. and Oriunno, M. and Orrell, J. L. and Ortega, G. S. and Ostrovskiy, I. and Overman, C. T. and Parent, S. and Piepke, A. and Pocar, A. and Pratte, J. F. and Qiu, D. and Radeka, V. and Raguzin, E. and Rao, T. and Rescia, S. and Retière, F. and Robinson, A. and Rossignol, T. and Rowson, P. C. and Roy, N. and Saldanha, R. and Sangiorgio, S. and Schmidt, Sebastian and Schneider, Jessica and Schubert, A. and Skarpaas, K. and Soma, A. K. and St-Hilaire, G. and Stekhanov, V. and Stiegler, T. and Sun, X. L. and Tarka, M. and Tolba, T. and Totev, T. I. and Tsang, R. and Tsang, T. and Vachon, F. and Veenstra, B. and Veeraraghavan, V. and Visser, G. and Vuilleumier, J. L. and Wagenpfeil, Michael and Wang, Q. and Watkins, J. and Weber, M. and Wei, W. and Wen, L. J. and Wichoski, U. and Wrede, Gerrit and Wu, S. X. and Wu, W. H. and Xia, Q. and Yang, L. and Yen, Y. R. and Zeldovich, O. and Zhang, X. and Zhao, J. and Zhou, Y. and Ziegler, Tobias},
doi = {10.1038/s41586-019-1169-4},
faupublication = {yes},
journal = {Nature},
note = {CRIS-Team Scopus Importer:2019-05-17},
peerreviewed = {Yes},
title = {{Imaging} individual barium atoms in solid xenon for barium tagging in {nEXO}},
volume = {569},
year = {2019}
}
@article{faucris.119944264,
abstract = {The quality of an image can be enhanced by using a stationary diffusively scattering screen placed in an intermediate image plane. Image impairment caused by small optical materials defects or dust particles is reduced. The effect is demonstrated using a microfilm reader.},
author = {Leuchs, Gerd},
faupublication = {yes},
journal = {Optik},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.imagin},
pages = {?},
peerreviewed = {Yes},
title = {{Imaging} {Quality} {Improvement} by a {Diffusively} {Scattering} {Screen}},
volume = {101},
year = {1996}
}
@incollection{faucris.122640364,
address = {Oxford},
author = {Häusler, Gerd},
booktitle = {Encyclopedia of Modern Optics},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2004.nat.dphy.optik.1optik.imagin},
pages = {114-123},
peerreviewed = {Yes},
publisher = {Elsevier},
title = {{Imaging}: {Speckle} and {Coherence}},
year = {2004}
}
@article{faucris.279583200,
abstract = {A cell is a complex material whose mechanical properties are essential for its normal functions. Heating can have a dramatic effect on these mechanical properties, similar to its impact on the dynamics of artificial polymer networks. We investigated such mechanical changes by the use of a microfluidic optical stretcher, which allowed us to probe cell mechanics when the cells were subjected to different heating conditions at different time scales. We find that HL60/S4 myeloid precursor cells become mechanically more compliant and fluid-likewhen subjected to either a sudden laser-induced temperature increase or prolonged exposure to higher ambient temperature. Above a critical temperature of 52±1°C, we observed active cell contraction, which was strongly correlatedwith calciuminflux through temperature-sensitive transient receptor potential vanilloid 2 (TRPV2) ion channels, followed by a subsequent expansion in cell volume. The change from passive to active cellular response can be effectively described by a mechanical model incorporating both active stress and viscoelastic components. Our work highlights the role of TRPV2 in regulating the thermomechanical response of cells. It also offers insights into how cortical tension and osmotic pressure govern cell mechanics and regulate cell-shape changes in response to heat and mechanical stress. © 2014 The Author(s).},
author = {Chan, C. J. and Whyte, Graeme and Boyde, L. and Salbreux, Guillaume and Guck, Jochen},
doi = {10.1098/rsfs.2013.0069},
faupublication = {no},
journal = {Interface Focus},
keywords = {Calcium; Cell contraction; Cell rheology; Cortical tension; Myeloid precursor cell; Optical stretcher},
note = {CRIS-Team Scopus Importer:2022-08-05},
peerreviewed = {Yes},
title = {{Impact} of heating on passive and active biomechanics of suspended cells},
volume = {4},
year = {2014}
}
@inproceedings{faucris.124091044,
abstract = {The design and simulation of printed polymer optical waveguides is a new approach in the field of raytracing techniques, to link the CAD routines with the simulation process of the waveguides via raytracing methods.},
author = {Loosen, Florian and Backhaus, Carsten and Lindlein, Norbert and Zeitler, Jochen Tobias and Franke, Jörg},
booktitle = {Frontiers in Optics 2016, OSA Technical Digest (online) (Optical Society of America, 2016), paper FW3H.2},
doi = {10.1364/FIO.2016.FW3H.2},
faupublication = {yes},
keywords = {Polymer waveguides (130.5460), Propagating methods (220.2560), Scattering, rough surfaces (290.5880)},
peerreviewed = {unknown},
publisher = {OSA},
title = {{Implementation} of a {Scattering} {Method} for {Rough} {Surfaces} in a {Raytracing} {Software} linked with a {CAD} ({Computer}-{Aided} {Design}) {Toolbox}},
venue = {Rochester},
year = {2016}
}
@inproceedings{faucris.121326304,
abstract = {In this paper, polymer optical waveguides (POWs), fabricated by using flexographic printing for printing conditioning lines onto polymethylmethacrylate (PMMA) foil substrate material and Aerosol Jet Printing for producing the core and cladding of the waveguide, are characterized by using Monte Carlo raytracing for the scattering process. This method offers the opportunity to simulate the propagation of light, which are traced through the produced POWs. In the first step, the surface roughness of all optical materials, which are involved in the fabrication process of the POWs, are measured. The roughness measurement of substrate, core and cladding material is necessary to interlink the surface roughness (Monte Carlo scattering model) with a non-sequential raytracing method. Not only the surface of each material is investigated, but also the roughness measurement of the interlayer between the printed core and cladding material is examined. To build up the complete manufacturing technology virtually, also the process parameters of the printing need to be investigated. The results of the tracing must be a value of the attenuation of a simulated printed POW to give the designer a feedback about the optical quality of the waveguide before the printing process. This project is part of the DFG (the German Research Foundation) founded research group OPTAVER where the goal is to build up the whole manufacturing process, from the CAD, over the simulation, to the fabrication process and coupling of such printed POWs. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.},
author = {Reitberger, Thomas and Franke, Jörg and Loosen, Florian and Lindlein, Norbert},
booktitle = {Proc. SPIE 10098, Physics and Simulation of Optoelectronic Devices XXV, 100981B (February 22, 2017)},
doi = {10.1117/12.2252520},
faupublication = {yes},
keywords = {Fabrication, Polymers, Simulations, Waveguides, Printing, Cladding, Scattering, Surface roughness, Manufacturing, Optical materials},
publisher = {SPIE},
title = {{Important} {Parameters} of {Printed} {Polymer} {Optical} {Waveguides} ({POWs}) in {Simulation} and {Fabrication}},
venue = {San Francisco},
year = {2017}
}
@article{faucris.121143264,
abstract = {White-light interferometry (WLI) on rough surfaces is based on interference from individual speckles. The measurement uncertainty of WLI is limited by a random shift of these individual interference patterns. The statistical error in each measurement point depends on the brightness of the corresponding speckle: a dark speckle yields a larger error than a bright speckle. In this paper, a novel method is presented to reduce the measurement uncertainty significantly: by sequentially switching the direction of the illumination, the camera sees several independent speckle patterns in sequence. From each pattern, the brightest speckles are selected to eventually calculate an accurate height map. This height map displays no outliers, and the measured surface roughness is close to the stylus measurements.},
author = {Häusler, Gerd and Hybl, Ondrej and Wiesner, Bernhard},
doi = {10.1364/AO.51.000751},
faupublication = {yes},
journal = {Applied Optics},
pages = {751-757},
peerreviewed = {unknown},
title = {{Improved} white-light interferometry on rough surfaces by statistically independent speckle patterns},
volume = {51},
year = {2012}
}
@inproceedings{faucris.111184744,
author = {Stephan, C. and Sponsel, K. and Onishchukov, G. and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (Qels), May},
doi = {10.1364/CLEO.2010.CThBB3},
faupublication = {yes},
note = {lhft{\_}intern.bib::Stephan10a},
peerreviewed = {Yes},
title = {{Improvement} of {NOLM}-based phase-preserving amplitude limiters by fiber optimizations},
year = {2010}
}
@article{faucris.107236184,
abstract = {GaN microrods were grown self-catalyzed by a fast and simple metal–organic vapor phase epitaxy method without any processing before or after deposition. The prismatic microrods with a regular hexagonal cross-section, sharp edges, straight, and smooth sidewall facets act as a microresonator, as seen by the appearance of whispering gallery modes in the yellow defect band range. To improve their optical properties, a reduced Ga precursor flow is required during growth. However, their hexagonal microrod morphology is not maintained under these growth conditions. The approach to start growth with a high Ga precursor flow and applying a ramp to a reduced precursor flow yield in significant enhancement of the near band edge emission in the upper part of the microrods. Whispering gallery modes in superposition with the near band edge emission can now be detected by cathodoluminescence measurements. These improvements lead to stimulated emission of a single whispering gallery mode up to ∼2 MW/cm2 and multimode lasing with a threshold of 2.86 MW/cm2 from an as-grown microrod under optical excitation at room temperature.},
author = {Tessarek, Christian and Roeder, Robert and Michalsky, Tom and Geburt, Sebastian and Franke, Helena and Schmidt-Grund, Ruediger and Heilmann, Martin and Hoffmann, Bjoern and Ronning, Carsten and Grundmann, Marius and Christiansen, Silke},
doi = {10.1021/ph500220v},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {GaN; growth; lasing; microrods; MOVPE; whispering gallery modes},
pages = {990-997},
peerreviewed = {Yes},
title = {{Improving} the {Optical} {Properties} of {Self}-{Catalyzed} {GaN} {Microrods} toward {Whispering} {Gallery} {Mode} {Lasing}},
volume = {1},
year = {2014}
}
@article{faucris.123484724,
author = {Mantel, Klaus Peter and Nercissian, Vanusch and Lindlein, Norbert},
faupublication = {yes},
journal = {Optics Letters},
pages = {4510--4513},
peerreviewed = {Yes},
title = {{Incoherent} averaging of phase singularities in speckle-shearing interferometry},
volume = {39},
year = {2014}
}
@article{faucris.227598346,
abstract = {Extreme events appear in many physics phenomena, whenever the probability distribution has a "heavy tail" differing very much from the equilibrium one. Most unusual are the cases of power-law (Pareto) probability distributions. Among their many manifestations in physics, from "rogue waves" in the ocean to Lévy flights in random walks, Pareto dependences can follow very different power laws. For some outstanding cases, the power exponents are less than 2, leading to indefinite values not only for higher moments but also for the mean. Here we present the first evidence of indefinite-mean Pareto distribution of photon numbers at the output of nonlinear effects pumped by parametrically amplified vacuum noise, known as bright squeezed vacuum (BSV). We observe a Pareto distribution with power exponent 1.31 when BSV is used as a pump for supercontinuum generation, and other heavy-tailed distributions (however, with definite moments) when it pumps optical harmonics generation. Unlike in other fields, we can flexibly control the Pareto exponent by changing the experimental parameters. This extremely fluctuating light is interesting for ghost imaging and for quantum thermodynamics as a resource to produce more efficiently nonequilibrium states by single-photon subtraction, the latter of which we demonstrate experimentally.},
author = {Manceau, Mathieu and Spasibko, Kirill Yu and Leuchs, Gerd and Filip, Radim and Chekhova, Maria},
doi = {10.1103/PhysRevLett.123.123606},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2019-10-08},
peerreviewed = {Yes},
title = {{Indefinite}-{Mean} {Pareto} {Photon} {Distribution} from {Amplified} {Quantum} {Noise}},
volume = {123},
year = {2019}
}
@inproceedings{faucris.276467910,
abstract = {Quantum key distribution (QKD) is poised to be the first widespread implementation of quantum communication. In principle, it offers unconditional security: an eavesdropper introduces errors and thus cannot remain concealed from the legitimate parties. However, in practical implementations the actual security depends on a host of technological and protocol-operational components. Eve could exploit imperfections in Alice's or Bob's equipment (such as source or detectors) remotely, or vulnerabilities in the actual implementation of the abstract QKD protocol. Several such attacks have been proposed [1,2], and various proof-of-principle demonstrations on commercial QKD devices have been performed in recent years [3-5]. © 2011 IEEE.},
author = {Jain, N. and Lydersen, L. and Wittmann, C. and Wiechers, C. and Elser, D. and Marquardt, Christoph and Makarov, V. and Leuchs, Gerd},
booktitle = {2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011},
date = {2011-05-22/2011-05-26},
doi = {10.1109/CLEOE.2011.5942990},
faupublication = {yes},
isbn = {9781457705335},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Inducing} a detector efficiency mismatch to hack a commercial quantum key distribution system},
venue = {DEU},
year = {2011}
}
@inproceedings{faucris.229197492,
abstract = {Recombination in gas ionised by femtosecond laser pulses generates heating and sound waves. The resulting transient refractive index changes can, at high enough laser repetition rates, affect propagation of successive pulses. In gas-filled hollow-core photonic crystal fibre (HC-PCF), where pulses with μ energies are sufficiently intense to ionise the gas, pulse-compression and UV-generation experiments revealed a clear dependence of the nonlinear dynamics on repetition rate [1]. In a recent study a probe laser was transmitted through a single-ring HC-PCF from the side to detect the single-shot temporal refractive index evolution [2]. The results suggest using atomically lighter gases to reduce detrimental ionisation effects, however capillary vibrations driven by plasma-induced sound waves caused additional probe-phase modulation which complicated a clear experimental proof.},
author = {Koehler, Johannes R. and Köttig, Felix and Tani, Francesco and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8871839},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Influence} of different gases on ionisation-induced refractive index changes in gas-filled hollow-core {PCF}},
venue = {Munich},
year = {2019}
}
@inproceedings{faucris.123900744,
abstract = {Numerical simulations have shown a significant influence of group-velocity dispersion (GVD) of the highly nonlinear fiber on the transfer characteristics of a nonlinear amplifying loop mirror (NALM). The effect is especially strong for the anomalous dispersion regime where an interaction of GVD and self-phase modulation (SPM) leads to formation of high-order solitons. The irregularities of the resulting NALM transfer functions can be used for phase-preserving amplitude regeneration of several, irregular-spaced amplitude states for multi-level modulation formats. The regeneration performance was estimated for a 16QAM signal with three amplitude states where a reduction of amplitude noise without significant signal phase distortions has been observe},
author = {Röthlingshöfer, Tobias and Toth, Daniel and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Transparent Optical Networks (ICTON)},
doi = {10.1109/ICTON.2012.6254448},
faupublication = {yes},
note = {lhft{\_}intern.bib::Roethlingshoefer2012ca},
peerreviewed = {Yes},
publisher = {Institute of Electrical and Electronics Engineers (IEEE)},
title = {{Influence} of group-velocity dispersion on multilevel phase-preserving amplitude regeneration in a nonlinear amplifying loop mirror},
year = {2012}
}
@inproceedings{faucris.120490964,
abstract = {The influence of dispersion of the highly nonlinear fiber in the loop of a nonlinear amplifying loop mirror on its performance as a 2R regenerator for phase-encoded optical signals has been studied. © 2008 Optical Society of Americ},
author = {Sponsel, Klaus and Cvecek, Kristian and Stephan, Christian and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Lasers and Electro-Optics, 2008 and Conference on Quantum Electronics and Laser Science, pages 1-2, 4 - 8 May},
date = {2008-05-04/2008-05-09},
doi = {10.1109/QELS.2008.4552890},
faupublication = {yes},
isbn = {1557528594},
note = {UnivIS-Import:2017-12-18:Pub.2008.tech.IE.LEH.influe},
peerreviewed = {Yes},
title = {{Influence} of {Group} {Velocity} {Dispersion} on phase-preserving {Amplitude} {Regeneration} by a {Nonlinear} {Amplifying} {Loop} {Mirror}},
venue = {San Jose, CA},
year = {2008}
}
@article{faucris.296595198,
abstract = {The influence of the initial surface roughness of TiAl6V4 samples on the orientation and periodicity of the resulting laser-induced periodic surface structures (LIPSS), as well as the surface wettability and chemistry is reported here. Before LIPSS fabrication, initial sample surface roughness is adjusted by variations of finial polishing steps with polishing grain sizes of 18.3, 8.4, 5, and 0.5 µm. A 3 × 3 irradiation matrix was defined and lasered on all samples by changing the laser power and distance between consecutive laser scans. The resulting structures were characterized by scanning electron microscopy (SEM), atomic force microscopy, Raman spectroscopy, and contact angle measurements. As a further step, three representative generated structures were chosen to explore their bone implant viability by resazurin assays, alkaline phosphatase activity, and direct SEM imaging of the induced cells (MG63) and bacteria (Escherichia coli and Staphylococcus aureus). Results show that initial surface roughness has big influence on the wettability of the resulting surface, as well as inducing small variations on the orientation of the generated LIPSS. Structures generated with a higher integrated fluence have also shown to enhance cell differentiation while reducing bacterial activity, making them a great candidate for improved bone implant compatibility and durability.},
author = {Sotelo, Lamborghini and Fontanot, Tommaso and Vig, Sanjana and Herre, Patrick and Yousefi, Peyman and Fernandes, Maria Helena and Sarau, George and Leuchs, Gerd and Christiansen, Silke},
doi = {10.1002/admt.202201802},
faupublication = {yes},
journal = {Advanced Materials Technologies},
keywords = {biocompatibility; laser functionalization; laser-induced periodic surface structures; TiAl6V4},
note = {CRIS-Team Scopus Importer:2023-04-20},
peerreviewed = {Yes},
title = {{Influence} of {Initial} {Surface} {Roughness} on {LIPSS} {Formation} and {Its} {Consecutive} {Impact} on {Cell}/{Bacteria} {Attachment} for {TiAl6V4} {Surfaces}},
year = {2023}
}
@inproceedings{faucris.106103844,
author = {Stephan, C. and Sponsel, K. and Onishchukov, G. and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Conference on OFC / NFOEC, March, San Diego},
doi = {10.1364/OFC.2010.OMH4},
faupublication = {yes},
note = {lhft{\_}intern.bib::Stephan10b},
peerreviewed = {Yes},
publisher = {The Optical Society},
title = {{Influence} of {Rayleigh} {Backscattering} on the {Performance} of {NOLM}-{Based} {Phase}-{Preserving} {Amplitude} {Limiters}},
year = {2010}
}
@inproceedings{faucris.123487584,
author = {Stephan, C. and Sponsel, K. and Onishchukov, G. and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {OSA Optics and Photonics Congress, Advanced Photonics, BGPP Topical Meeting, Karlsruhe, 21.-24. Juni},
faupublication = {yes},
note = {lhft{\_}intern.bib::Stephan10},
peerreviewed = {Yes},
publisher = {The Optical Society},
title = {{Influence} of {Rayleigh} {Backscattering} on the {Performance} of {NOLM}-{Based} {Phase}-{Preserving} {Amplitude} {Limiters}},
year = {2010}
}
@article{faucris.115330424,
abstract = {The present contribution deals with thermofluidynamical features occurring during the drawing of capillaries for microstructured optical fibres. Here, the process stability depends strongly on flow and thermal processes taking place as a preform is heated and drawn in the furnace. This is the case particularly for hollow fibres for which the existence of the inner hole directly depends on material parameters such as the surface tension and the rheological properties and on process parameter such as hole internal pressure and the process temperature. A fluid-mechanics model suggested in the literature that makes use of asymptotic analysis based on small aspect ratio of the micro capillaries, has been revisited and improved recently and the leading-order equations have been then examined in some asymptotic limits by Luzi et al.. Starting from the novel class of solutions of the simplified equations of motion the present paper focuses on the effect of both surface tension and internal hole pressure since those are of essential importance during drawing. Thus, comparisons with experimental data are performed, in order to validate the analytical model developed in , which will be briefly presented here. The theoretical model gives very accurate predictions both when the internal hole is pressurized or when no pressure is applied, as long as the temperature does not reach too high values. © 2006 IEEE.},
author = {Luzi, Giovanni and Epple, Philipp and Scharrer, Michael and Fujimoto Meinecke, Ken and Rauh, Cornelia and Delgado, Antonio},
doi = {10.1109/JLT.2010.2049251},
faupublication = {yes},
journal = {Journal of Lightwave Technology},
keywords = {Asymptotic analysis; Holey fibres; Micro structured optical fibres (MOFs); Numerical methods; Photonic crystal fibres},
note = {UnivIS-Import:2015-03-09:Pub.2010.tech.ITC.stmmec.influe},
pages = {1882-1888},
peerreviewed = {Yes},
title = {{Influence} of surface tension and inner pressure on the process of fibre drawing},
url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5458041},
volume = {28},
year = {2010}
}
@inproceedings{faucris.251906163,
abstract = {Printing polymer optical waveguides by means of combined printing
processes has proven to be a challenging but effective way of producing
waveguides with a loss less than 0.3dB/cm. In order to evaluate the
optical performance of the produced waveguides, optical simulations have
been carried out. In this work we show the influence on the optical
performance by simulating droplets and enclosures in multimode
waveguides with a proprietary raytracing algorithm. Critical waveguide
parameters such as width and height variation will be evaluated.
Finally, experimentally achieved optical performance is presented and
compared with the simulation resul},
author = {Backhaus, Carsten and Förner, Johannes and Wienke, Alexander and Hoffmann, Gerd-Albert and Eiche, Yannic and Lorenz, Lukas and Kaierle, Stefan and Overmeyer, Ludger and Franke, Jörg and Bock, Karlheinz and Lindlein, Norbert},
booktitle = {Physics and Simulation of Optoelectronic Devices XXIX},
date = {2021-03-06/2021-03-11},
doi = {10.1117/12.2577179},
editor = {Witzigmann B, Osiński M, Arakawa Y},
faupublication = {yes},
keywords = {Raytracing, Polymer Optical Waveguides, Aerosol Jet Printing, Optical Simulation, Waveguide Quality Analysis, Signal Attenuation, Waveguides, 3D Printing},
pages = {26 -- 34},
peerreviewed = {unknown},
publisher = {SPIE},
series = {Proc. SPIE 11680},
title = {{Influence} on the optical performance of droplets and enclosures in printed polymer optical waveguides},
volume = {1168009},
year = {2021}
}
@article{faucris.120152604,
abstract = {Most of the known optical range sensors require a large amount of two-dimensional raw data from which the three-dimensional (3D) data are decoded and so are associated with considerable cost. The cost arises from expensive hardware as well as from the time necessary to acquire the images. We will address the question of how one can acquire maximum shape information with a minimum amount of image raw data, in terms of information theory. It is shown that one can greatly reduce the amount of raw data needed by proper optical redundancy reduction. Through these considerations, a 3D sensor is introduced, which needs only a single color (red-green-blue) raw image and still delivers data with only approximately 2-μm longitudinal measurement uncertainty. © 003 Optical Society of America.},
author = {Häusler, Gerd and et al.},
author_hint = {Wagner Christoph, Häusler Gerd},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.inform},
pages = {5418-5426},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Information} theoretical optimization for optical range sensors,},
volume = {42},
year = {2003}
}
@inproceedings{faucris.116120884,
abstract = {Optical transmission systems made impressive progress in the field of system capacity, reach and flexibility. Beside all improvements achieved so far, signal distortion on the one hand side and noise accumulation on the other hand side are the limitations of optical transmission system performance. In terms of signal distortion besides advanced link design strategies optical regenerators are of high interest for signal conditioning along a fiber link. Our paper reviews signal regeneration techniques focusing on fiber nonlinearity based setups both in interferometric and non interferometric architecture. We analyze the impact of regenerator design parameters as fiber nonlinear parameters, regenerator input power and characteristics of filters on signal improvement and demonstrate e.g. the increase of system reach. In order to address the upcoming techniques of advanced modulation formats we introduce a fiber based regenerator scheme that shows attractive potential especially for phase modulated signals. Combining these new optical formats with regenerative methods is attractive for high performance systems. For the differential phase shift keying (DPSK) modulation format we investigate the potential of a cross phase modulation based type of regenerator in more detail. The availability of suitable regenerator components, especially highly nonlinear fibers is one of the challenges. Especially the new fiber types known as photonic crystal fibers can act as bases for new structures and thus will open the door for ultra high performance optical transmission systems.},
author = {Schmauß, Bernhard and Striegler, Arne and Meißner, Markus},
booktitle = {Invited talk, APOC, Wuhan, China, November},
date = {2003-11-04/2003-11-06},
doi = {10.1117/12.530113},
faupublication = {yes},
keywords = {Modulation Format; Optical Transmission; Regeneration},
note = {UnivIS-Import:2015-04-16:Pub.2003.tech.IE.LEH.innova},
pages = {263-277},
peerreviewed = {Yes},
publisher = {International Society for Optical Engineering; 1999},
title = {{Innovative} optical components and their impact on future transmission systems},
venue = {Wuhan},
year = {2003}
}
@article{faucris.108763644,
abstract = {Since its invention in the 1950s, semiconductor solar cell technology has evolved in great leaps and bounds. Solar power is now being considered as a serious leading contender for replacing fossil fuel based power generation. This article reviews the evolution and current state, and potential areas of near future research focus, of leading inorganic materials based solar cells, including bulk crystalline, amorphous thin-films, and nanomaterials based solar cells. Bulk crystalline silicon solar cells continue to dominate the solar power market, and continued efforts at device fabrication improvements, and device topology advancements are discussed. III-V compound semiconductor materials on c-Si for solar power generation are also reviewed. Developments in thin-film based solar cells are reviewed, with a focus on amorphous silicon, copper zinc tin sulfide, cadmium telluride, as well as nanostructured cadmium telluride. Recent developments in the use of nano-materials for solar power generation, including silicon and gallium arsenide nanowires, are also reviewed.},
author = {Ramanujam, Jeyakumar and Verma, Amit and Gonzalez-Diaz, B. and Guerrero-Lemus, Ricardo and Del Canizo, Carlos and Garcia-Tabares, Elisa and Rey-Stolle, Ignacio and Granek, Filip and Korte, Lars and Tucci, Mario and Rath, Jatin and Singh, Udai P. and Todorov, Teodor and Gunawan, Oki and Rubio, S. and Plaza, J. L. and Dieguez, Ernesto and Hoffmann, Björn and Christiansen, Silke and Cirlin, George E.},
doi = {10.1016/j.pmatsci.2016.03.005},
faupublication = {no},
journal = {Progress in Materials Science},
pages = {294-404},
peerreviewed = {Yes},
title = {{Inorganic} photovoltaics - {Planar} and nanostructured devices},
volume = {82},
year = {2016}
}
@article{faucris.107233984,
abstract = {
Since its invention in the 1950s, semiconductor solar cell technology has evolved in great leaps and bounds. Solar power is now being considered as a serious leading contender for replacing fossil fuel based power generation. This article reviews the evolution and current state, and potential areas of near future research focus, of leading inorganic materials based solar cells, including bulk crystalline, amorphous thin-films, and nanomaterials based solar cells. Bulk crystalline silicon solar cells continue to dominate the solar power market, and continued efforts at device fabrication improvements, and device topology advancements are discussed. III–V compound semiconductor materials on c-Si for solar power generation are also reviewed. Developments in thin-film based solar cells are reviewed, with a focus on amorphous silicon, copper zinc tin sulfide, cadmium telluride, as well as nanostructured cadmium telluride. Recent developments in the use of nano-materials for solar power generation, including silicon and gallium arsenide nanowires, are also reviewed.
},
author = {Ramanujam, Jeyakumar and Verma, Amit and Gonzalez-Diaz, B. and Guerrero-Lemus, Ricardo and Del Canizo, Carlos and Garcia-Tabares, Elisa and Rey-Stolle, Ignacio and Granek, Filip and Korte, Lars and Tucci, Mario and Rath, Jatin and Singh, Udai P. and Todorov, Teodor and Gunawan, Oki and Rubio, S. and Plaza, J. L. and Dieguez, Ernesto and Hoffmann, Björn and Christiansen, Silke and Cirlin, George E.},
doi = {10.1016/j.pmatsci.2016.03.005},
faupublication = {no},
journal = {Progress in Materials Science},
pages = {294-404},
peerreviewed = {Yes},
title = {{Inorganic} photovoltaics – {Planar} and nanostructured devices},
volume = {82},
year = {2016}
}
@inproceedings{faucris.123020304,
author = {Häusler, Gerd and et al.},
author_hint = {Klinger Peter, B. Spellenberg, J. M. Hermann, Häusler Gerd},
booktitle = {Proc. of Third International Conference on 3D Digital Imaging and Modeling},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.forsch.gradui.gradui{\_}6.inproc},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{In} {Process} {3D}-{Sensing} for {Laser} {Material} {Processing}},
venue = {Quebec City, QC Canada},
year = {2001}
}
@article{faucris.118493584,
abstract = {A novel process for uniform deposition of noble-metal catalyst nanoparticles on the inner core wall of a hollow-core photonic crystal fiber is presented. The resulting continuous flow microreactor enables heterogeneous catalysis reactions on extremely low (sub-\textgreekmL) sample volumes. Strikingly, the excellent single mode transmission properties of the HC-PCF are preserved after the deposition process, allowing sensitive in situ spectroscopy measurements over unprecedented length scales of up to 50 cm.},
author = {Cubillas, Ana Maria and Schmidt, Matthias and Euser, Tijmen G. and Taccardi, Nicola and Unterkofler, Sarah and Russell, Philip St. John and Wasserscheid, Peter and Etzold, Bastian},
doi = {10.1002/admi.201300093},
faupublication = {yes},
journal = {Advanced Materials Interfaces},
pages = {1300093},
peerreviewed = {Yes},
title = {{In} {Situ} {Heterogeneous} {Catalysis} {Monitoring} in a {Hollow}-{Core} {Photonic} {Crystal} {Fiber} {Microflow} {Reactor}},
volume = {1},
year = {2014}
}
@inproceedings{faucris.245143647,
abstract = {We monitor the reaction of an acid with an alcohol inside a hollow-core photonic crystal fibre using Raman spectroscopy. The method uses tiny amount of chemicals and allows precise measurement of the activation energy.},
author = {Schorn, Florian and Aubermann, Manfred and Zeltner, Richard and Wasserscheid, Peter and Haumann, Marco and Joly, Nicolas},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}SI.2020.SM4M.8},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{In}-situ monitoring of homogeneously catalysed reactions using raman spectroscopy inside hollow-core photonic crystal fibres},
venue = {Washington, DC},
volume = {Part F183-CLEO-SI 2020},
year = {2020}
}
@inproceedings{faucris.239917132,
abstract = {Nonlinear optical spectroscopic techniques, namely Second Harmonic Generation (SHG) spectroscopy and Sum Frequency Generation (SFG), are highly interface sensitive and can be used to obtain information exclusively from the surface of particles. Second Harmonic Generation (SHG) has proven to be a versatile technique that can be used to probe different kinds of surface properties of dispersed particle systems in in-situ. Prominent examples are the direct study of molecular adsorption at the surface of particles and the determination of surface potentials of nano- and microparticles. However, in most of these studies well-defined spherical and monodisperse particles with low number densities were used. Here we demonstrate the application of the SHG technique for the study of more complex and technically relevant particle systems. We discuss the influence of particle concentration and particle size distribution. Moreover, we apply a novel nonlinear Mie Model that is capable to simulate the SH scattering from the surface of spherical particles and we show that the model can be used to extract information about molecules at the particle liquid interfac},
author = {Schürer, Benedikt and Wunderlich, Sarina and Peschel, Ulf and Peukert, Wolfgang},
booktitle = {Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites},
date = {2010-06-21/2010-06-24},
faupublication = {yes},
isbn = {9781439834015},
keywords = {Nonlinear Mie model; Nanoparticles; Second Harmonic Generation; Optics; Surface characterization},
pages = {33-36},
peerreviewed = {unknown},
title = {{In}-{Situ} surface characterization of nano- and microparticles by optical {Second} {Harmonic} {Generation}},
url = {https://www.scopus.com/record/display.uri?eid=2-s2.0-78049441700&origin=inward},
venue = {Anaheim, CA},
volume = {1},
year = {2010}
}
@inproceedings{faucris.316661642,
abstract = {We are motivated by the question if scanning laser projection with low speckle noise is possible. Scanning laser projection requires "instantaneous" speckle reduction, within a few nanoseconds-meaning that no moving diffusors can be used. We will argue that instantaneous speckle reduction is possible by conversion of spatial coherence to spatial incoherence-but nature demands for a compensation. The cost can be estimated via the information theoretical concept "channel capacity", which incorporates the etendue as well as the signal-to-noise ratio. We will show that an optical system with low spatial coherence (=low speckle noise) must provide significantly more degrees of freedom than a coherent imaging system. The consequence for the technical optical system is serious: Significant speckle reduction can only be achieved by an excessively large projection aperture. This is not just a sophistic consideration, it seriously restricts the design of scanning laser projectors.},
author = {Häusler, Gerd and Dötzer, Florian and Mantel, Klaus},
booktitle = {Proceedings of SPIE - The International Society for Optical Engineering},
date = {2018-09-10/2018-09-12},
doi = {10.1117/12.2317925},
editor = {Leszek R. Jaroszewicz, Malgorzata Kujawinska},
faupublication = {yes},
isbn = {9781510622975},
keywords = {Channel capacity; Etendue; Laser projection; Speckle noise; Speckle noise reduction},
note = {Created from Fastlane, Scopus look-up},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Instantaneous} speckle reduction? {Yes}, but there is no free lunch!},
venue = {Janow Podlaski},
volume = {10834},
year = {2018}
}
@inproceedings{faucris.311244285,
abstract = {The limited range of quantum key distribution (QKD) in fiber based systems led to several projects aiming for the development of a satellite based QKD infrastructure, like the conduction of quantum limited measurements from a geostationary satellite [1] or the MICIUS mission, which impressively demonstrated QKD on a global scale [2]. However, due to the high costs of satellite launches the profitability of commercial systems would benefit dramatically from further reduction in size, weight and power. Photonic integration [3] addresses these points by allowing the integration of all optical components of a QKD system on a photonic integrated circuit (PIC). In this work, we are going to demonstrate building blocks for quantum communication from space based on photonic integration technology by building a payload for the CubeSat mission QUBE [4] consisting of an integrated sender for weak coherent states as well as an integrated Quantum Random Number Generator (QRNG).
eff = 10 µm) of the test. One measurement step using diffractive beam splitters and phase-shifting techniques delivers the surface information along one meridian. The full surface description can be stitched together from several phase results combined with appropriate object rotations. This publication includes, besides the short recapitulation of the measurement principle and experimental setup, a presentation of the simulated and measured data of an aspherical object under test. The data analysis of each meridian is focused on the elimination of the misalignment aberrations caused by specimen displacements. Finally, the stitching of multiple meridian regions to a 3D surface map of the specimen is shown.},
author = {Rothau, Sergey and Schamburek, Tobias and Mantel, K. and Lindlein, Norbert},
doi = {10.1364/AO.455003},
faupublication = {yes},
journal = {Applied Optics},
note = {CRIS-Team Scopus Importer:2022-06-03},
pages = {4246-4253},
peerreviewed = {Yes},
title = {{Interferometric} grazing incidence test of rough steep convex aspherics: full {3D} reconstruction of the object},
volume = {61},
year = {2022}
}
@article{faucris.229921892,
abstract = {In the past, grazing incidence interferometry has been applied for rough plane, cylindrical, acylindrical, and general rod-like surfaces using diffractive beam splitters. Here, we demonstrate that also rough convex steep rotational symmetric spherical or aspherical surfaces can be measured along one meridian in a single step using diffractive beam splitters and phase-shifting techniques. The extension to the whole surface can be attained by successive meridional measurements of the surface under test by azimuthal adjustments. The principle of the method is given and for a spherical ball lens as an extremely curved surface simulated, and experimental data are presented. The features of the interferogram are discussed, and the experimental evaluation of a single meridian including the unwrapped phase data is shown.},
author = {Rothau, Sergey and Lindlein, Norbert and Schwider, Johannes},
doi = {10.1364/AO.58.009082},
faupublication = {yes},
journal = {Applied Optics},
note = {CRIS-Team Scopus Importer:2019-11-29},
pages = {9082-9088},
peerreviewed = {Yes},
title = {{Interferometric} grazing incidence test of rough steep convex spherical and aspherical surfaces: {First} simulations and experimental proof of principle},
volume = {58},
year = {2019}
}
@article{faucris.247567686,
abstract = {Grazing incidence interferometry has been applied to plane, cylindrical, acylindrical, and general rod-like surfaces using diffractive beam splitters. Here, in a first step towards measuring aspherics, we demonstrate that also rough convex steep rotationally symmetric spherics can be measured along one meridian in a single step using diffractive beam splitters and phase shifting techniques. The measurement of rough surfaces is possible, i.e., without the need to polish the surfaces, due to the large effective wavelength (λeff ≈ 10 µm) of the test. We include, besides the short recapitulation of the measurement principle and experimental setup, a presentation of the measured data of one small meridian region for the special case of spherical objects under test. The subsequent data analysis combined with suitable simulations focuses on elimination of the misalignment aberrations from the results caused by specimen displacements in the setup.},
author = {Rothau, Sergey and Mantel, K. and Lindlein, Norbert},
doi = {10.1364/AO.410071},
faupublication = {yes},
journal = {Applied Optics},
month = {Jan},
note = {CRIS-Team Scopus Importer:2021-01-08},
pages = {52-59},
peerreviewed = {Yes},
title = {{Interferometric} grazing incidence test of rough steep convex spherics: {Experimental} data analysis},
volume = {60},
year = {2021}
}
@article{faucris.122759604,
author = {Mantel, Klaus Peter and Schwider, Johannes},
faupublication = {yes},
journal = {Applied Optics},
pages = {1897--1912},
peerreviewed = {Yes},
title = {{Interferometric} homogeneity test using adaptive frequency comb illumination},
volume = {52(9)},
year = {2013}
}
@inproceedings{faucris.122644764,
author = {Mantel, Klaus Peter and Schwider, Johannes},
booktitle = {Fringe 2013},
faupublication = {yes},
pages = {393--398},
peerreviewed = {unknown},
title = {{Interferometric} {Homogeneity} {Test} {Using} {Adaptive} {Frequency} {Comb} {Illumination}},
year = {2013}
}
@article{faucris.121537504,
abstract = {A holographic optical element can either be characterized by the wave aberrations or by the point spread function or alternatively by the modulation transfer function. Here we propose the measurement of the wave aberrations with the help of a Twyman-Green interferometer adapted to the requirements for testing holographic optical elements. The evaluation of the interferograms is done with the phase-shifting technique. The resulting wave aberrations are expressed by Zemike coefficients. In addition to this evaluation, the point spread function and the modulation transfer function are calculated from the wave aberrations. The set-up, the evaluation method and also exemplary results of a tested holographic optical element are presented. © 1993 Taylor & Francis Ltd.},
author = {Lindlein, Norbert and et al.},
author_hint = {FalkenstÖrfer O., Schwider J., Lindlein N., BÖhm A., Schreiber H., Otto A., VÖlkel R., ZÖller A.},
doi = {10.1080/09500349314550781},
faupublication = {yes},
journal = {Journal of Modern Optics},
pages = {733-742},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Interferometric} measurement of holographic lenslets},
volume = {40},
year = {1993}
}
@incollection{faucris.122232484,
address = {New York},
author = {Lindlein, Norbert and Lamprecht, Jürgen and Schwider, Johannes},
booktitle = {Microoptics},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2004.nat.dphy.optik.1optik.interf},
pages = {-},
peerreviewed = {Yes},
publisher = {Springer},
title = {{Interferometric} measurement of micro-lenses including cylindrical lenses},
year = {2004}
}
@article{faucris.121032824,
abstract = {We report on interferometric characterization of a deep parabolic mirror with a depth of more than five times its focal length. The interferometer is of Fizeau type; its core consists of the mirror itself, a spherical null element, and a reference flat. Because of the extreme solid angle produced by the paraboloid, the alignment of the setup appears to be very critical and needs auxiliary systems for control. Aberrations caused by misalignments are removed via fitting of suitable functionals provided by means of ray tracing simulations. It turns out that the usual misalignment approximations fail under these extreme conditions.© 2008 Optical Society of America.},
author = {Leuchs, Gerd and Mantel, Klaus and Berger, Andreas and Konermann, Hildegard and Sondermann, Markus and Peschel, Ulf and Lindlein, Norbert and Schwider, Johannes},
doi = {10.1364/AO.47.005570},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-04-14:Pub.2008.nat.dphy.optik.1optik.interf},
pages = {5570-5584},
peerreviewed = {unknown},
title = {{Interferometric} null test of a deep parabolic reflector generating a {Hertzian} dipole field},
volume = {47},
year = {2008}
}
@inproceedings{faucris.122628264,
abstract = {Interferometric surface tests of stigmatic aspherics can be carried out in a null test configuration. Null tests require reference null elements either plane or spherical surfaces or both. A parabolic reflector transforms a plane into a spherical wave which converges to the focus of the paraboloid. Therefore, a spherical ball lens or a steel ball can be placed into the focus enabling a double-pass geometry for the null test. Here a Fizeau interferometer geometry has been selected in order to guarantee invariance against polarization distortions under the assumption that radially polarized laser light is used for the interferometer. Radial polarized light is necessary to mimic a Hertzian dipole field. Due to the extreme solid angle produced by the paraboloid the alignment of the setup is very critical and needs auxiliary systems for the control. Aberrations caused by misalignments are removed via fitting of suitable functional provided through ray-trace simulations. It turned out that the usual vector approximations fail under these extreme circumstances. Test results are given for a paraboloid with 2mm focal length transforming a plane wave into a near dipole wave comprising a solid angle of about 3,4π.},
author = {Lindlein, Norbert and et al.},
author_hint = {Leuchs G., Mantel K., Berger A., Konermann H., Sondermann M., Peschel U., Lindlein N., Schwider J.},
booktitle = {Interferometry XIV: Techniques and Analysis},
doi = {10.1117/12.797423},
faupublication = {yes},
isbn = {9780819472830},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Interferometric} null test of a parabolic reflector generating a {Hertzian} dipole field},
venue = {San Diego, CA},
volume = {7063},
year = {2008}
}
@article{faucris.121045144,
abstract = {Increasing accuracy requirements in aspheric metrology make the development of absolute testing procedures for aspheric surfaces important. One strategy is transferring the standard practice three-position test for spheres to aspherics. The three-position test, however, involves a cat's eye position and therefore has certain drawbacks. We propose an absolute testing method for rotationally symmetric aspherics where the cat's eye position is replaced with a radially sheared position. Together with rotational movements of the specimen, the surface deviations can be obtained in an absolute manner. To demonstrate the validity of the procedure, we present a measurement result for a sphere and compare it with a result obtained by the standard three-position test. © 2009 Optical Society of America.},
author = {Mantel, Klaus Peter and Geist, Eduard and Harder, Irina and Lindlein, Norbert and Leuchs, Gerd},
doi = {10.1364/OL.34.003178},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-04-14:Pub.2009.nat.dphy.optik.1optik.interf},
pages = {3178-3180},
peerreviewed = {Yes},
title = {{Interferometric} quasi-absolute tests for aspherics using a radial shear position},
volume = {34},
year = {2009}
}
@article{faucris.216841782,
abstract = {Many of the biological functions of a cell are dictated by the intricate motion of proteins within its membrane over a spatial range of nanometres to tens of micrometres and time intervals of microseconds to minutes. This rich parameter space is not accessible by fluorescence microscopy, but it is within reach of interferometric scattering (iSCAT) particle tracking. However, as iSCAT is sensitive even to single unlabelled proteins, it is often accompanied by a large speckle-like background, which poses a substantial challenge for its application to cellular imaging. Here, we employ a new image processing approach to overcome this difficulty and demonstrate tracking of transmembrane epidermal growth factor receptors with nanometre precision in all three dimensions at up to microsecond speeds and for durations of tens of minutes. We provide examples of nanoscale motion and confinement in ubiquitous processes such as diffusion in the plasma membrane, transport on filopodia and rotational motion during endocytosis.},
author = {Taylor, Richard W. and Mahmoodabadi, Reza Gholami and Rauschenberger, Verena and Gießl, Andreas and Schambony, Alexandra and Sandoghdar, Vahid},
doi = {10.1038/s41566-019-0414-6},
faupublication = {yes},
journal = {Nature Photonics},
note = {CRIS-Team Scopus Importer:2019-05-02},
peerreviewed = {Yes},
title = {{Interferometric} scattering microscopy reveals microsecond nanoscopic protein motion on a live cell membrane},
year = {2019}
}
@misc{faucris.118433084,
author = {Lindlein, Norbert and Schwider, Johannes},
faupublication = {yes},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.interf{\_}5},
peerreviewed = {automatic},
title = {{Interferometric} testsfor micro-optics},
year = {1996}
}
@inproceedings{faucris.264326146,
author = {Rothau, Sergej and Schamburek, Tobias and Lindlein, Norbert},
booktitle = {122},
editor = {DGaO},
faupublication = {yes},
peerreviewed = {unknown},
series = {DGaO Proceedings},
title = {{Interferometrie} in streifender {Inzidenz} an {Asphären}},
venue = {Bremen},
year = {2021}
}
@inproceedings{faucris.227102492,
author = {Rothau, Sergej and Schwider, Johannes and Mantel, Klaus and Lindlein, Norbert},
booktitle = {120. Annual Meeting of the DGaO},
faupublication = {yes},
pages = {B28},
peerreviewed = {No},
title = {{Interferometrie} in streifender {Inzidenz}: {Simulationen} und {Messergebnisse}},
venue = {Darmstadt},
year = {2019}
}
@article{faucris.119500964,
abstract = {We demonstrate interferometric 3D-measurements of technical objects with rough surfaces. Objects with heights of a few millimetres up to several centimetres are measured from a distance of about one meter. With an integration time of 60ms a distance resolution of a few 10μm is achieved.},
author = {Leuchs, Gerd and et al.},
author_hint = {Trautner Johannes, Walcher Karl, Krauß Manfred , Leuchs Gerd, Bodermann B. , Telle H.R. },
faupublication = {yes},
journal = {VDI-Berichte},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.interf{\_}89},
pages = {159-164},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Interferometrischer} {3D}-{Sensor} zur berührungslosen {Vermessung} technischer {Oberflächen}},
volume = {1572},
year = {2000}
}
@article{faucris.121004664,
abstract = {Fabrication errors of cylindrical lenses may be divided into two categories: surface deviations and errors in the position and orientation of the surfaces relative to each other. A simultaneous measurement of both error sources is possible by means of grazing incidence interferometry. Thereby, the surface deviations and the misalignment errors of each surface relative to the diffractive null elements can be acquired for up to three surfaces at the same time. The misalignment errors provide information about the relative position of the surfaces and allow the detection of various error types like wedge errors and centering errors.},
author = {Mantel, Klaus Peter and Lindlein, Norbert and Schwider, Johannes},
faupublication = {yes},
journal = {VDI-Berichte},
note = {UnivIS-Import:2015-04-14:Pub.2002.nat.dphy.optik.1optik.interf{\_}4},
pages = {29-34},
peerreviewed = {unknown},
title = {{Interferometry} {Simultaneous} {Measurement} of the {Surfaces} of {Cylindrical} {Lenses} by {Grazing} {Incidence} {Interferometry}},
volume = {1694},
year = {2002}
}
@inproceedings{faucris.229197008,
abstract = {Nonlinear propagation of intense ultrashort laser pulses in gases is mostly understood to be influenced only by the pulse itself, i.e., by single-shot dynamics, because relaxation processes are typically faster than the time between pulses. Using single-ring hollow-core photonic crystal fibre (PCF) [1], strong-field intensities can be reached by μ-level pulses, available from MHz-level repetition rate fibre lasers. At these high repetition rates it is not clear that pulse-to-pulse interactions can still be neglected. Indeed, experiments involving photoionization show a strong repetition rate-dependence, suggesting that the pulse dynamics are influenced by inter-pulse effects [1]. Recently it has been shown, using interferometric side-probing [2], that fs photoionization and subsequent recombination-induced heating leads to a drop in refractive index tens of μs long, caused by a gas density depression in the core after an acoustic shock wave has propagated away. Here we report that this modifies the characteristics of the fibre, influencing pulse propagation even at 100 kHz repetition rate.},
author = {Köttig, Felix and Koehler, Johannes R. and Tani, Francesco and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872301},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Inter}-pulse dynamics at high repetition rates by femtosecond ionization in gas-filled fibres},
venue = {Munich, DEU},
year = {2019}
}
@article{faucris.276453121,
abstract = {It has been predicted and experimentally demonstrated that by injecting squeezed light into an optomechanical device, it is possible to enhance the precision of a position measurement. Here, we present a fundamentally different approach where the squeezing is created directly inside the cavity by a nonlinear medium. Counterintuitively, the enhancement of the signal-to-noise ratio works by deamplifying precisely the quadrature that is sensitive to the mechanical motion without losing quantum information. This enhancement works for systems with a weak optomechanical coupling and/or strong mechanical damping. This can allow for larger mechanical bandwidth of quantum-limited detectors based on optomechanical devices. Our approach can be straightforwardly extended to quantum nondemolition qubit detection.},
author = {Peano, Vittorio and Schwefel, Harald and Marquardt, Christoph and Marquardt, Florian},
doi = {10.1103/PhysRevLett.115.243603},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Intracavity} {Squeezing} {Can} {Enhance} {Quantum}-{Limited} {Optomechanical} {Position} {Detection} through {Deamplification}},
volume = {115},
year = {2015}
}
@inproceedings{faucris.111695364,
author = {Wen, J. and Kriesch, Arian and Ploss, Daniel and Banzer, Peter and Schmauß, Bernhard and Peschel, Ulf},
booktitle = {Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference},
doi = {10.1109/CLEOE.2011.5943610},
faupublication = {yes},
note = {lhft{\_}intern.bib::Wen2011},
peerreviewed = {No},
publisher = {Institute of Electrical & Electronics Engineers (IEEE)},
title = {{Investigating} plasmonic gap modes coupled to nanoantennas},
venue = {Munich},
year = {2011}
}
@article{faucris.216842483,
abstract = {Carbon-based and carbon–metal hybrid materials hold great potential for applications in optics and electronics. Here, a novel material made of carbon and gold–silver nanoparticles is discussed, fabricated using a laser-induced self-assembly process. This self-assembled metamaterial manifests itself in the form of cuboids with lateral dimensions on the order of several micrometers and a height of tens to hundreds of nanometers. The carbon atoms are arranged following an orthorhombic unit cell, with alloy nanoparticles intercalated in the crystalline carbon matrix. The optical properties of this metamaterial are analyzed experimentally using a microscopic Müller matrix measurement approach and reveal a high linear birefringence across the visible spectral range. Theoretical modeling based on local-field theory applied to the carbon matrix links the birefringence to the orthorhombic unit cell, while finite-difference time-domain simulations of the metamaterial relates the observed optical response to the distribution of the alloy nanoparticles and the optical density of the carbon matrix.},
author = {Butt, Muhammad Abdullah and Lesina, Antonino Calà and Neugebauer, Martin and Bauer, Thomas and Ramunno, Lora and Vaccari, Alessandro and Berini, Pierre and Petrov, Yuriy and Danilov, Denis and Manshina, Alina and Banzer, Peter and Leuchs, Gerd},
doi = {10.1002/smll.201900512},
faupublication = {yes},
journal = {Small},
keywords = {computational modeling; laser-induced deposition; metal alloy nanoparticles; microscopic Müller matrix measurement technique; orthorhombic carbon},
note = {CRIS-Team Scopus Importer:2019-05-02},
peerreviewed = {Yes},
title = {{Investigating} the {Optical} {Properties} of a {Laser} {Induced} {3D} {Self}-{Assembled} {Carbon}–{Metal} {Hybrid} {Structure}},
volume = {15},
year = {2019}
}
@inproceedings{faucris.241029230,
abstract = {We investigate Second Harmonic Generation at the surface of nanoparticles both by modeling and experiment. We present an ab initio simulation method, which allows deducing surface properties as well as the nature of adsorbed molecules. (C) 2010 Optical Society of America},
author = {Wunderlich, Sarina and Peschel, Ulf and Schürer, Benedikt and Peukert, Wolfgang},
booktitle = {Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS)},
date = {2010-05-16/2010-05-21},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Investigating} the {Surface} of {Nanoparticles} by {Second} {Harmonic} {Generation}},
venue = {San Jose, CA},
year = {2010}
}
@inproceedings{faucris.229199452,
abstract = {Ytterbium-doped fiber laser amplifiers are known for their high single-pass gain and average powers up to the kilowatt range, while maintaining single-mode output. An upper limitation for the achievable output power is given by transverse mode instabilities (TMI). Due to the interference with higher order modes that create a thermally induced long period grating, chaotic power transfer happens above a certain threshold, which degrades the beam quality. It has been shown that this effect can be influenced by manipulating the grating strength itself. It has also been shown that a certain phase relation of the grating to the guided modes is necessary to efficiently transfer power or hinder the effect by phase disturbance [1]. A natural phase disturbance is given by noise, which is introduced by the pump or seed source in a fiber amplifer. In this contribution, we experimentally investigate the amount of intensity noise in a fiber-pre-amplifer, which is typically used in kW experiments and relate it to the fundamental shot noise limit (SNL). In the experiments, we used a single-frequency external cavity diode laser as a low noise source and amplify it by 30 dB from 10 mW to an output power of 10 W. This is a typical pre-amplifier configuration, before such sources can be amplified to the kW level. The fiber amplifier is a double-clad fiber with a 10/125 μm geometry, pumped by a wavelength stabilized pump diode at 976 nm via a monolithic pump coupler. In order to prevent stimulated Brillouin scattering, the seed laser is phase modulated by a combination of a sinusoid and white noise and thus broadened to 50 GHz linewidth. The noise measurements are done by balanced self-homodyne detection including optimized photodiode readout circuits spanning different frequency ranges. The recorded spectra are given in Fig. 1. The SNL was verified through an attenuation measurement for the subtracted detector signals. Finally, the measured excess noise values are fitted by their corresponding second-order polynomial power dependency and extrapolated to the full power of the amplifier. The seed source, phase modulator and fiber amplifier have been characterized in this setup separately to investigate their contributions. For the fiber amplifier, both co- and counter-pumping configuration, are analysed. Due to detector limitations, all given spectra are measured at an optical power in the mW regime corresponding to approx. 30 dB of attenuation in the amplifiers.},
author = {Popp, Alexandra and Bock, Victor and Sedlmeir, Florian and Muller, Christian R. and Haarlammert, Nicoletta and Schreiber, Thomas and Marquardt, Christoph and Tunnermann, Andreas and Leuchs, Gerd},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8873411},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Investigation} of noise sources down to the shot-noise limit in {Yb}-doped fiber amplifers for {TMI} investigations},
venue = {Munich},
year = {2019}
}
@article{faucris.119501624,
author = {Leuchs, Gerd and et al.},
author_hint = {Dorn Ralf, Quabis Susanne, Piringer M. , Eberler Manfred, Leuchs Gerd},
faupublication = {yes},
journal = {Technisches Messen},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.invest},
pages = {421},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Investigation} of phase singularities in the vicinity of small structures using a {Linnik} interference microscope},
volume = {67},
year = {2000}
}
@article{faucris.121747824,
abstract = {We report measurements of the isotope shifts of the 3d(6)4s(2) a (5)D(4)-3d(6)4s4p z (5)F(5)(o) Fe I resonance line at 372 nm between all four stable isotopes (54)Fe, (56)Fe, (57)Fe, and (58)Fe, as well as the complete hyperfine structure of that line for (57)Fe, the only stable isotope having a nonzero nuclear spin. The field and specific mass shift coefficients of the transition have been derived from the data, as well as the experimental value for the hyperfine structure magnetic dipole coupling constant A of the excited state of the transition in (57)Fe: A(3d(6)4s4p z (5)F(5)(o)) = 81.69(86) MHz. The measurements were carried out by means of high-resolution Doppler-free laser saturated absorption spectroscopy in a Fe-Ar hollow cathode discharge cell using both natural and enriched iron samples. The measured isotope shifts and hyperfine constants are reported with uncertainties at the percent leve},
author = {Krins, S. and Oppel, Steffen and Huet, N. and von Zanthier, Joachim and Bastin, T.},
doi = {10.1103/PhysRevA.80.062508},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Isotope} shifts and hyperfine structure of the {Fe} {I} 372-nm resonance line},
volume = {80},
year = {2009}
}
@article{faucris.109515384,
author = {Häusler, Gerd and Leuchs, Gerd},
faupublication = {yes},
journal = {Uni-Kurier-Magazin},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.isttec},
pages = {32-34},
peerreviewed = {Yes},
title = {{Ist} '{Technisches} {Sehen}' gleich '{Kamera} + {Computer}'?},
volume = {104},
year = {2003}
}
@article{faucris.115320304,
abstract = {Holographic optical lens elements (HOEs) are volume grating in thick material such as dichromated gelatine (DCG) which suffer from the wavelength mismatch between the recording process and the practical application e.g., at laser diode wavelengths. Wavelength mismatch between recording and reconstruction is caused by the fact that the best recording materials are sensitive only in the blue region of the spectrum. The advantage of volume gratings (thickness 13 μm) is the large angle of deflection of the first diffraction order with a high diffraction efficiency. An optimized recording geometry using only spherical wave fronts allows on the one hand for the elimination of one of the third order aberrations (predominantly: astigmatism) or on the other hand for the fulfillment of the Bragg condition. To optimize the properties of holographic optical lens elements with one aspheric recording wave a kind of iterative procedure for the manufacturing is proposed. Each iteration consists of three different steps.},
author = {Lindlein, Norbert and et al.},
author_hint = {Falkenstörfer O., Keinonen T., Lindlein Norbert, Schwider Johannes, Streibl N.},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-05:Pub.1994.nat.dphy.optik.1optik.iterat},
pages = {200-201},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Iterative} correction of holographic lenses},
volume = {2169},
year = {1994}
}
@article{faucris.121413644,
author = {Berkels, Benjamin and Bauer, Sebastian and Ettl, Svenja and Arold, Oliver and Hornegger, Joachim and Rumpf, Martin},
doi = {10.1118/1.4816675},
faupublication = {yes},
journal = {Medical Physics},
pages = {091703 1-10},
peerreviewed = {Yes},
title = {{Joint} {Surface} {Reconstruction} and {4D} {Deformation} {Estimation} from {Sparse} {Data} and {Prior} {Knowledge} for {Marker}-{Less} {Respiratory} {Motion} {Tracking}},
url = {http://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2013/Berkels13-JSR.pdf},
volume = {40},
year = {2013}
}
@inproceedings{faucris.123574704,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St., Lampalzer R., Schönfeld H., Stockinger F.},
booktitle = {3.Optische Formerfassung},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.nat.dphy.optik.1optik.kalibr},
pages = {?},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Kalibrierung} einer {3D} {Video} {Kamera}},
venue = {Esslingen},
year = {1996}
}
@article{faucris.118717544,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Schönfeld H., Stockinger F.},
faupublication = {yes},
journal = {Optik},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.kalibr{\_}2},
pages = {93-100},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Kalibrierung} von optischen {3D}-{Sensoren}},
volume = {102},
year = {1996}
}
@inproceedings{faucris.106699384,
author = {Lindlein, Norbert and Mantel, Klaus and Geist, Eduard and Hussendörfer, Benjamin},
booktitle = {DGaO-Proceedings 2010 - http://www.dgao-proceedings.de - ISSN: 1614-8436},
faupublication = {yes},
pages = {P32},
peerreviewed = {No},
title = {{Kalibrierverfahren} von {Sphären} bei partieller {Kohärenz}},
year = {2010}
}
@article{faucris.253939014,
abstract = {Geometrical chirality is a property of objects that describes a three-dimensional mirror-symmetry violation and therefore it requires a nonvanishing spatial extent. In contrary, optical chirality describes only the local handedness of electromagnetic fields and neglects the spatial geometrical structure of optical beams. In this Letter we put forward the physical significance of geometrical chirality of spatial structure of optical beams, which we term Kelvin's chirality. Furthermore, we report on an experiment revealing the coupling of Kelvin's chirality to optical chirality upon transmission of a focused beam through a planar medium. Our work emphasizes the importance of Kelvin's chirality in all light-matter interaction experiments involving structured light beams with spatially inhomogeneous phase and polarization distributions.},
author = {Nechayev, Sergey and Eismann, Jörg and Alaee, Rasoul and Karimi, Ebrahim and Boyd, Robert W. and Banzer, Peter},
doi = {10.1103/PhysRevA.103.L031501},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2021-04-02},
peerreviewed = {Yes},
title = {{Kelvin}'s chirality of optical beams},
volume = {103},
year = {2021}
}
@article{faucris.248385010,
abstract = {We study scattering phenomena such as the Kerker effect, superscattering, and scattering dark states in a subwavelength atomic antenna consisting of atoms with only electric dipole transitions. We show that an atomic antenna can exhibit arbitrarily large or small scattering cross sections depending on the geometry of the structure and the direction of the impinging light. We also demonstrate that atoms with only an electric dipole transition can exhibit a directional radiation pattern with zero backscattering when placed in a certain configuration. This is a special case of a phenomenon known as the Kerker effect, which typically occurs in the presence of both electric and magnetic transitions. Our findings open a pathway to design highly directional emitters, nonradiating sources, and highly scattering objects based on individually controlled atoms.},
author = {Alaee, Rasoul and Safari, Akbar and Sandoghdar, Vahid and Boyd, Robert W.},
doi = {10.1103/PhysRevResearch.2.043409},
faupublication = {yes},
journal = {Physical Review Research},
note = {CRIS-Team WoS Importer:2021-01-29},
peerreviewed = {Yes},
title = {{Kerker} effect, superscattering, and scattering dark states in atomic antennas},
volume = {2},
year = {2020}
}
@inproceedings{faucris.319237185,
abstract = {Experiments are reported in which the quantum properties of intense optical pulses at 1.5 micrometer are controlled via their non-linear interaction with the optical fiber. Intense light pulses may exhibit non-classical features such as entanglement with application in quantum communication. The role of phase control will be discussed.
1 cm
2
. The chirality originates from symmetry breaking by the introduction of a step within the crescent structure. This step is produced by an intermediate layer of silicon dioxide onto which the metal crescent structure is deposited. It is experimentally demonstrated that the chiroptical properties in such structures can be tailored by changing the position of the step within the crescent. These experiments are complemented by finite element simulations and the application of a multipole expansion to elucidate the physical origin of the circular dichroism of the crescent structures.},
author = {Görlitzer, Eric and Mohammadi, Reza and Nechayev, Sergey and Banzer, Peter and Vogel, Nicolas},
doi = {10.1002/adom.201801770},
faupublication = {yes},
journal = {Advanced Optical Materials},
keywords = {chirality; colloidal lithography; multipole decomposition; plasmonics; split-ring resonator},
note = {CRIS-Team Scopus Importer:2019-06-04},
peerreviewed = {Yes},
title = {{Large}-{Area} {3D} {Plasmonic} {Crescents} with {Tunable} {Chirality}},
year = {2019}
}
@inproceedings{faucris.120153924,
author = {Häusler, Gerd and et al.},
author_hint = {Colonna de Lega X., Biegen J., de Groot P., Häusler Gerd, Andretzky Peter},
booktitle = {18th Annual Meeting of American Society for Precision Engineering},
faupublication = {yes},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.largef},
pages = {403-406},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Large} field-of-view scanning white-light interferometers},
volume = {30},
year = {2003}
}
@article{faucris.288297738,
abstract = {We present an efficient and easily implemented approach for creating stable electrocatalytically active nanocomposites based on polyaniline (PANI) with metal NPs. The approach combines in situ synthesis of polyaniline followed by laser-induced deposition (LID) of Ag, Pt, and AgPt NPs. The observed peculiarity of LID of PANI is the role of the substrate during the formation of multi-metallic nanoparticles (MNP). This allows us to solve the problem of losing catalytically active particles from the electrode's surface in electrochemical use. The synthesized PANI/Ag, PANI/Pt, and PANI/AgPt composites were studied with different techniques, such as SEM, EDX, Raman spectroscopy, and XPS. These suggested a mechanism for the formation of MNP on PANI. The MNP-PANI interaction was demonstrated, and the functionality of the nanocomposites was studied through the electrocatalysis of the hydrogen evolution reaction. The PANI/AgPt nanocomposites demonstrated both the best activity and the most stable metal component in this process. The suggested approach can be considered as universal, since it can be extended to the creation of electrocatalytically active nanocomposites with various mono- and multi-metallic NPs.},
author = {Vasileva, Anna A. A. and Mamonova, Daria V. V. and Petrov, Yuri V. V. and Kolesnikov, Ilya E. E. and Leuchs, Gerd and Manshina, Alina A. A.},
doi = {10.3390/nano13010088},
faupublication = {yes},
journal = {Nanomaterials},
month = {Jan},
note = {CRIS-Team WoS Importer:2023-01-27},
peerreviewed = {Yes},
title = {{Laser}-{Induced} {Synthesis} of {Electrocatalytically} {Active} {Ag}, {Pt}, and {AgPt}/{Polyaniline} {Nanocomposites} for {Hydrogen} {Evolution} {Reactions}},
volume = {13},
year = {2023}
}
@article{faucris.228440175,
abstract = {We evaluate prospects, performance and temperature limits of a new approach to macroscopic scale laser refrigeration. The considered refrigeration device is based on exciplex-mediated frequency up-conversion inside hollow-core fibers pressurized with a dopant - buffer gas mixture. Exciplexes are excited molecular states formed by two atoms (dopant and buffer) which do not form a molecule in the ground state but exhibit bound states for electronically excited states. The cooling cycle consists of absorption of laser photons during atomic collisions inducing light assisted exciplex formation followed by blue-shifted spontaneous emission on the atomic line of the bare dopant atoms after molecular separation. This process, closely related to reversing the gain mechanism in excimer lasers, allows for a large fraction of collision energy to be extracted in each cycle. The hollow-core fiber plays a crucial role as it allows for strong light-matter interactions over a long distance, which maximizes the cooling rate per unit volume and the cooling efficiency per injected photon while limiting re-absorption of spontaneously emitted photons channeled into unguided radiation modes. Using quantum optical rate equations and refined dynamical simulations we derive general conditions for efficient cooling of both the gas and subsequently of the surrounding solid state environment. Our analytical approach is applicable to any specific exciplex system considered and reveals the shape of the exciplex potential landscapes as well as the density of the dopant as crucial tuning knobs. The derived scaling laws allow for the identification of optimal exciplex characteristics that help to choose suitable gas mixtures that maximize the refrigeration efficiency for specific applications.},
author = {Sommer, C. and Joly, Nicolas and Ritsch, H. and Genes, C.},
doi = {10.1063/1.5121491},
faupublication = {yes},
journal = {AIP Advances},
note = {CRIS-Team Scopus Importer:2019-10-29},
peerreviewed = {Yes},
title = {{Laser} refrigeration of gas filled hollow-core fibres},
volume = {9},
year = {2019}
}
@article{faucris.110424204,
abstract = {This paper presents a theoretical discussion of the fundamental uncertainty of distance measurements by caused by speckle during laser triangulation. Other contributing factors are the observation aperture and the angle of triangulation. For short-range macroscopic applications this uncertainty is in the range of couple micrometers to more than 10 μm, and is independent of the size of the spot size projected, provided this spot is larger than the observed speckle. Low temporal illumination reduces the uncertainty by more than twice for rough surfaces, although N-fold loss of lateral resolution results from an N-fold improvement in the distance uncertainty.},
author = {Häusler, Gerd and et al.},
author_hint = {Dorsch R. D., Häusler Gerd, Herrmann J. M.},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-05:Pub.1994.nat.dphy.optik.1optik.lasert},
pages = {1306-1314},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Laser} triangulation: {Fundamental} uncertainty in distance measurement},
volume = {33},
year = {1994}
}
@article{faucris.120105524,
abstract = {The physical limits of optical lithography are mainly determined by the aperture of the mask projection system and the wavelength of the light. In addition to the wavelength shift to the deep UV the application of special techniques to improve the processing window are required. This has furthered the application of the phase shift mask as a lithography tool. The generation of the exact intensity distribution needed in the plane of the wafer strongly depends on the accuracy of the phase shift introduced by the phase shift mask. However, one difficult issue is the reliable measurement of the phase shift introduced by the phase mask at the working wavelength. This is of course mainly due to the lack of suitable and simple interferometric devices for the deep-UV-region - here 193 nm. We propose the use of a diffractive shearing interferometer as a way out. By combining two Ronchi-phase gratings it is possible to produce shear and phase shifts for the evaluation of the fringe patterns simply by axial and lateral shifts of the phase gratings relative to each other. Since the excimer laser emits spatially partial coherent light only the coherence issue is one of the physical problems dealt with in our experiments. The state of the art of our experiments so far reached will be presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Fütterer Gerald, Lano M., Lindlein Norbert, Schwider Johannes},
doi = {10.1117/12.474601},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {193 nm lithography; Complex degree of coherence; Phase measurement; Phase shift mask; Shearing interferometer},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.latera},
pages = {541},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Lateral} {Shearing} {Interferometer} for {Phase} {Shift} {Mask} {Measurement} at 193 nm},
volume = {4691},
year = {2002}
}
@inproceedings{faucris.121538824,
author = {Lindlein, Norbert and et al.},
author_hint = {Nercissian V., Lindlein N., Mantel K., Harder I.},
booktitle = {6th International Workshop on Advanced Optical Metrology, Fringe 2009},
doi = {10.1007/978-3-642-03051-2-117},
faupublication = {yes},
isbn = {9783642030505},
pages = {701-704},
peerreviewed = {unknown},
publisher = {Springer-Verlag Berlin Heidelberg},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Lateral} {Shearing} {Interferometry} with {Simultaneous} {Detection} of both {Gradient} {Fields} on a {Common} {Detector} {Grid}},
venue = {Stuttgart},
year = {2009}
}
@article{faucris.123338424,
abstract = {We investigate the lateral transport of (longitudinal) spin angular momentum in a special polarization tailored light beam composed of a superposition of a y-polarized zero-order and an x-polarized first-order Hermite-Gaussian mode. This phenomenon is linked to the relative Gouy phase shift between the individual modes upon propagation, but can also be interpreted as a geometric phase effect. Experimentally, we demonstrate the implementation of such a mode and measure the spin density upon propagation.},
author = {Neugebauer, Martin and Grosche, Simon and Rothau, Sergej and Leuchs, Gerd and Banzer, Peter},
doi = {10.1364/OL.41.003499},
faupublication = {no},
journal = {Optics Letters},
pages = {3499-3502},
peerreviewed = {Yes},
title = {{Lateral} spin transport in paraxial beams of light},
volume = {41},
year = {2016}
}
@article{faucris.268922952,
abstract = {Asymmetric transmission - direction-selective electromagnetic transmission between two ports - is a phenomenon exhibited by two-dimensional chiral systems. The possibility of exploiting this phenomenon in chiral metasurfaces opens exciting possibilities for applications such as optical isolation and routing without external magnetic fields. This work investigates optical asymmetric transmission in chiral plasmonic metasurfaces supporting lattice plasmon modes and unveils its physical origins. We show numerically and experimentally that asymmetric transmission is caused by an unbalanced excitation of such lattice modes by circularly polarized light of opposite handedness. The excitation efficiencies of the lattice modes, and hence, the strength of the asymmetric transmission, are controlled by engineering the in-plane scattering of the individual plasmonic nanoparticles such that the maximum scattering imbalance occurs along one of the in-plane diffraction orders of the metasurface. Furthermore, we show that only the nonzero diffraction orders contribute to this effect. By highlighting the role of the localized plasmon modes supported by the nanoparticle and their radiative coupling to the lattice structure, our study provides a guideline for designing metasurfaces with asymmetric transmission enabled by lattice plasmons.},
author = {Apurv Chaitanya, N. and Butt, Muhammad and Reshef, O. and Boyd, Robert W. and Banzer, Peter and De Leon, Israel},
doi = {10.1063/5.0074849},
faupublication = {yes},
journal = {APL Photonics},
month = {Jan},
note = {CRIS-Team Scopus Importer:2022-02-04},
peerreviewed = {Yes},
title = {{Lattice}-plasmon-induced asymmetric transmission in two-dimensional chiral arrays},
volume = {7},
year = {2022}
}
@book{faucris.122176164,
address = {Weinheim},
author = {Leuchs, Gerd and et al.},
author_hint = {Bruss D., Leuchs Gerd},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-02:Pub.2006.nat.dphy.optik.1optik.lectur},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Lectures} on {Quantum} {Information}},
year = {2006}
}
@book{faucris.117866804,
address = {Weinheim},
edition = {1},
editor = {Leuchs, Gerd and et al.},
faupublication = {yes},
note = {UnivIS-Import:2015-05-08:Pub.2006.nat.dphy.optik.1optik.contin{\_}6},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Lectures} on {Quantum} {Information}},
year = {2006}
}
@article{faucris.240544603,
abstract = {The extrinsic and intrinsic curvature of a two-dimensional wave-guide influences wave propagation therein. While this can already be apprehended from a geometric point of view in terms of geodesics generalizing straight lines as the shortest distance between any two points, in wave optics interference phenomena strongly govern the field evolution, too. Radii of curvature in the order of the wavelength of light modify the local effective refractive index by altering the mode profile. Macroscopic radii only influence light propagation for non-vanishing intrinsic (or Gaussian) curvature. A positive Gaussian curvature leads to refocusing and thus an imaging behavior, whereas negative Gaussian curvature forces the field profile to diverge exponentially. These effects can be explained by an effective transverse potential acting on the electromagnetic field distribution's envelope. This can also be extended to nonlinear beam propagation. In this review paper we give a thorough introduction to differential geometry in two-dimensional manifolds and its incorporation with Maxwell's equations. We report on first fundamental experiments in this newly emerging field, which may lead to applications in integrated optical circuits. The dose conceptual analogy to phenomena in four-dimensional spacetime with constant curvature as well as toy-models of the Schwarzschild metric and a wormhole topology are also discussed.},
author = {Schultheiß, Vincent and Schultheiß, Vincent and Batz, Sascha and Peschel, Ulf},
doi = {10.1080/23746149.2020.1759451},
faupublication = {yes},
journal = {Advances in Physics: X},
month = {Jan},
note = {CRIS-Team WoS Importer:2020-07-17},
peerreviewed = {Yes},
title = {{Light} in curved two-dimensional space},
volume = {5},
year = {2020}
}
@article{faucris.107119364,
abstract = {We review recent experimental advances in the field of efficient coupling of single atoms and light in free space. Furthermore, a comparison of efficient free space coupling and strong coupling in cavity quantum electrodynamics (QED) is given. Free space coupling does not allow for observing oscillatory exchange between the light field and the atom which is the characteristic feature of strong coupling in cavity QED. Like cavity QED, free space QED does, however, offer full switching of the light field, a 180° phase shift conditional on the presence of a single atom as well as 100% absorption probability of a single photon by a single atom. Furthermore, free space cavity QED comprises the interaction with a continuum of modes. © 2013 Copyright Taylor and Francis Group, LLC.},
author = {Leuchs, Gerd and Sondermann, Markus},
doi = {10.1080/09500340.2012.716461},
faupublication = {yes},
journal = {Journal of Modern Optics},
keywords = {atom-photon coupling; free space QED; strong focussing},
pages = {36-42},
peerreviewed = {Yes},
title = {{Light}-matter interaction in free space},
volume = {60},
year = {2013}
}
@inproceedings{faucris.109301764,
abstract = {The correspondence between the linear integral transform and the ray-transfer matrix of a diffraction-free first-order optical system is used to describe the ray trajectory and to study the point spread function (PSF) in an active GRIN microlens characterized by a complex refractive index. The results show that the active microlens is regarded as a lossless microlens with a Gaussian mask induced by the complex refractive index. Comparison between light propagation effects in passive and active GRIN microlens is outlined.},
author = {Lindlein, Norbert and et al.},
author_hint = {Gomez-Reino C., Flores-Arias M., Castelo A., Meuret Y., Ruwisch C., Thienpont H., Lindlein N.},
booktitle = {Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration},
doi = {10.1117/12.661993},
faupublication = {yes},
isbn = {9780819462411},
keywords = {Active material; GRIN optics; PSF; Ray-tracing},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Light} propagation in a {GRIN} microlens with gain or loss and comparison with lossless case},
venue = {Strasbourg},
volume = {6185},
year = {2006}
}
@incollection{faucris.118891124,
address = {Berlin, Heidelberg, New York},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Ettl Peter, Schenk M., Bohn G., Laszlo I.},
booktitle = {Trends in Optics and Phototonics},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.1999.nat.dphy.optik.1optik.limits},
pages = {328-342},
peerreviewed = {Yes},
publisher = {Springer Verlag},
series = {Springer Series in Optical Sciences},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Limits} of {Optical} {Range} {Sensors} and {How} to {Exploit} {Them}},
volume = {74},
year = {1999}
}
@incollection{faucris.297036851,
abstract = {Photonic mesh lattices provide a versatile experimental platform for studying light propagation in a discrete environment. By using standard telecommunication equipment it is possible to influence the evolution of light by actively modulating its amplitude and phase. Fiber components thus offer a ready to use solution for creating a PT -symmetric optical network. Here, we analyze two classes of PT -symmetric networks: Those with local PT symmetry fulfilling the conditions of PT symmetry in each time step but not globally and those with global PT symmetry providing completely real eigenvalues. We investigate light propagation in these dissipative media in the linear and nonlinear regime and discuss nonlinear localization as well as the formation of soliton. Furthermore, Bloch oscillations are induced by an external phase modulation and are found to restore pseudo-Hermitian propagation.},
address = {Singapore},
author = {Wimmer, Martin and Christodoulides, Demetrios and Peschel, Ulf},
booktitle = {Parity-time Symmetry and Its Applications},
doi = {10.1007/978-981-13-1247-2{\_}1},
editor = {Demetrios Christodoulides, Jianke Yang},
faupublication = {yes},
isbn = {978-981-13-1247-2},
note = {CRIS-Team Scopus Importer:2023-04-20},
pages = {1-32},
peerreviewed = {unknown},
publisher = {Springer},
series = {Springer Tracts in Modern Physics},
title = {{Linear} and nonlinear experiments in {PT}-{Symmetric} photonic mesh lattices},
volume = {280},
year = {2018}
}
@article{faucris.110945824,
author = {Häusler, Gerd and et al.},
author_hint = {Laboureux Xavier, Häusler Gerd},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.locali},
pages = {5206-5216},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Localization} and registration of {3D}-objects in space - where are the limits?},
volume = {40},
year = {2001}
}
@inproceedings{faucris.265515130,
abstract = {Liquid-core fibers are a versatile platform for nonlinear light-matter interactions, combining highly nonlinear materials like carbon disulfide (CS 2 ) or nitrobenzene with the confinement and long interaction length of optical fibers. While there is only minor influence of strain inside the fiber core due to the liquid phase, pressure effects have a dominant role depending on the thermodynamic regime and filling of the fiber core [1]. In our experiments we use Brillouin Optical Correlation Domain Analysis (BOCDA) to create a localized Brillouin response [2]. Due to the associated refractive index change, this response is strain, pressure and temperature dependent. While the discrimination of strain and temperature effects in silica fibers is complicated due to the combined Brillouin response [3] , CS 2 filled fibers have the advantage of thermo- and piezo-optical coefficients with different signs. While the thermo-optic coefficient is negative, resulting in a downshifted acoustic response for higher temperature, the piezo-optic coefficient is positive, resulting in an upshifted Brillouin frequency for increased pressure. To investigate the response of the CS 2 , we heated different parts of the 60cm liquid-core fiber on a hotplate up to a temperature of 135 C while measuring the distributed Brillouin response with a resolution of 4cm.},
author = {Popp, Alexandra and Geilen, Andreas and Walter, Daniel and Chemnitz, Mario and Junaid, Saher and Poulton, Christopher G. and Marquardt, Christoph and Schmidt, Markus A. and Stiller, Birgit},
booktitle = {2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021},
date = {2021-06-21/2021-06-25},
doi = {10.1109/CLEO/Europe-EQEC52157.2021.9542349},
faupublication = {yes},
isbn = {9781665418768},
note = {CRIS-Team Scopus Importer:2021-10-29},
pages = {paper ch{\_}12{\_}3},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Localized} temperature and pressure measurements inside {CS2}-filled fiber using stimulated {Brillouin} scattering},
url = {https://opg.optica.org/abstract.cfm?uri=CLEO{\_}Europe-2021-ch{\_}12{\_}3},
venue = {Munich, DEU},
volume = {Fiber-based Sensors I (ch{\_}12)},
year = {2021}
}
@inproceedings{faucris.312941353,
abstract = {While modern communication systems pose a high standard of security using state-of-the-art encryption techniques based on computational hardness problems, quantum key distribution (QKD) offers a unique advantage using the laws of quantum mechanics. A secret key is shared between two parties, using quantum states of light over a quantum channel. Due to the quantum nature of the states, any interception or other way of eavesdropping will manifest in the distortion of the quantum state resulting in a change of accessible parameters. Whenever such a change of parameters is noticed, the shared key is marked unsecure and hashed down largely or, in the worst case, discarded.
3D-printing technologies, such as biofabrication, capitalize on the homogeneous distribution and growth of
cells inside biomaterial hydrogels, ultimately aiming to allow for cell differentiation, matrix remodeling, and
functional tissue analogues. However, commonly, only the mechanical properties of the bioinks or matrix
materials are assessed, while the detailed influence of cells on the resulting mechanical properties of hydro-
gels remains insufficiently understood. Here, we investigate the properties of hydrogels containing cells and
spherical PAAm microgel beads through multi-modal complex mechanical analyses in the small- and large-
strain regimes. We evaluate the individual contributions of different filler concentrations and a non-fibrous oxi-
dized alginate-gelatin hydrogel matrix on the overall mechanical behavior in compression, tension, and shear.
Through material modeling, we quantify parameters that describe the highly nonlinear mechanical response
of soft composite materials. Our results show that the stiffness significantly drops for cell- and bead concen-
trations exceeding four million per milliliter hydrogel. In addition, hydrogels with high cell concentrations
(≥6 mio ml−1) show more pronounced material nonlinearity for larger strains and faster stress relaxation. Our
findings highlight cell concentration as a crucial parameter influencing the final hydrogel mechanics, with
implications for microgel bead drug carrier-laden hydrogels, biofabrication, and tissue engineering.
},
author = {Distler, Thomas and Kretzschmar, Lena and Schneidereit, Dominik and Girardo, Salvatore and Goswami, Ruchi and Friedrich, Oliver and Detsch, Rainer and Guck, Jochen and Boccaccini, Aldo R. and Budday, Silvia},
doi = {10.1039/D0BM02117B},
faupublication = {yes},
journal = {Biomaterials Science},
peerreviewed = {Yes},
title = {{Mechanical} properties of cell- and microgel bead-laden oxidized alginate-gelatin hydrogels},
url = {https://pubs.rsc.org/en/content/articlelanding/2021/bm/d0bm02117b},
year = {2021}
}
@article{faucris.123301464,
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Korolkova Natalia, Lütkenhaus Norbert},
faupublication = {yes},
journal = {Zeitschrift für Physik},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.mehrsi},
pages = {20-21},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Mehr} {Sicherheit} durch {Quantenschlüssel}},
volume = {2},
year = {2003}
}
@article{faucris.123579104,
author = {Leuchs, Gerd and et al.},
author_hint = {Trautner Johannes, Walcher Karl, Leuchs Gerd, Bodermann Bernd, Telle Harald},
faupublication = {yes},
journal = {Technisches Messen},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.mehrwe},
pages = {406-409},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Mehrwellenlängen}-{Interferometrie} zur absoluten {Abstandsmessung} und {3D}-{Bildgebung}},
volume = {67},
year = {2000}
}
@article{faucris.114065864,
author = {Leuchs, Gerd and et al.},
author_hint = {Stepper F., Raff H., Leuchs Gerd},
faupublication = {yes},
journal = {Kontrolle : Qualitätssicherung in der Produktion},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.messen},
pages = {40-42},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Messen} ohne {Auszuspannen} - {Langer} {Lasertaster} für {Schleifmaschinen}},
volume = {94},
year = {1996}
}
@article{faucris.281726842,
author = {Wang, Kai and Chekhova, Maria and Kivshar, Yuri},
doi = {10.1063/pt.3.5062},
faupublication = {yes},
journal = {Physics Today},
note = {CRIS-Team WoS Importer:2022-09-16},
pages = {38-44},
peerreviewed = {unknown},
title = {{METASURFACES} for quantum technologies},
volume = {75},
year = {2022}
}
@inproceedings{faucris.119502504,
author = {Häusler, Gerd and et al.},
author_hint = {Veit K., Häusler Gerd},
booktitle = {Proceedings of the Vision Modeling and Visualization Conference 2001},
faupublication = {yes},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.metric},
pages = {33-38},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Metrical} calibration of a {Phase} measuring triangulation sensors},
year = {2000}
}
@article{faucris.213079253,
abstract = {Micrometer-sized particles are trapped in front of an air-filled hollow-core photonic crystal fiber using a novel dual-beam trap. A backward guided mode produces a divergent beam that diffracts out of the core, and simultaneously a focused laser beam launches a forward-propagating mode into the core. By changing the backward/forward power balance, a trapped particle can be selectively launched into the hollow core. Once inside, particles can be optically propelled along several meters of fiber with mobilities as high as 19 cm$·$s$-$1 W$-$1 (precisely measured using in-fiber Doppler velocimetry). The results are in excellent agreement with theory. The system allows determination of fiber loss as well as the mass density and refractive index of single particles.},
author = {Schmidt, O. A. and Garbos, M. K. and Euser, T. G. and Russell, Philip St. John},
doi = {10.1364/OL.37.000091},
faupublication = {no},
journal = {Optics Letters},
note = {EAM Import::2019-03-12},
peerreviewed = {Yes},
title = {{Metrology} of laser-guided particles in air-filled hollow-core photonic crystal fiber},
volume = {37},
year = {2012}
}
@article{faucris.107297784,
author = {Lange, Janina and Steinwachs, Julian and Kolb, Thorsten and Lautscham, Lena and Harder, Irina and Whyte, Graeme and Fabry, Ben},
doi = {10.1016/j.bpj.2015.05.029},
faupublication = {yes},
journal = {Biophysical Journal},
pages = {26-34},
peerreviewed = {Yes},
title = {{Microconstriction} {Arrays} for {High}-{Throughput} {Quantitative} {Measurements} of {Cell} {Mechanical} {Properties}},
volume = {109},
year = {2015}
}
@inproceedings{faucris.115759424,
address = {Amsterdam},
author = {Mantel, Klaus Peter and Lamprecht, Jürgen and Lindlein, Norbert and Schreiner, Roland and Schwider, Johannes and Ferstl, Manfred},
booktitle = {Fringe 2001},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.microc},
pages = {100-105},
publisher = {Elsevier},
title = {{Micro}-cylinder-lens testing using computer-generated holograms},
year = {2001}
}
@article{faucris.223209127,
abstract = {We introduce "microdeflectometry," a novel technique for measuring the microtopography of specular surfaces. The primary data are the local slope of the surface under test. Measuring the slope instead of the height implies high information efficiency and extreme sensitivity to local shape irregularities. The lateral resolution can be better than 1 μm, whereas the resulting height resolution is in the range of 1 nm. Microdeflectometry can be supplemented by methods to expand the depth of field, with the potential to provide quantitative 3D imaging with scanning-electron-microscope-like features. © 2008 Optical Society of America.},
author = {Häusler, Gerd and Richter, Claus and Leitz, Karl-Heinz and Knauer, Markus C.},
doi = {10.1364/OL.33.000396},
faupublication = {yes},
journal = {Optics Letters},
note = {LFT Import::2019-07-29 (1515)},
pages = {449-451},
peerreviewed = {Yes},
title = {{Microdeflectometry} - a novel tool to acquire three-dimensional microtopography with nanometer height resolution},
volume = {33},
year = {2008}
}
@article{faucris.213078752,
abstract = {Liquid-filled hollow-core photonic crystal fibers (HC-PCFs) are perfect optofluidic channels, based on their unique feature of low loss optical guidance in a liquid medium. Thereby, the overlap of the dissolved specimen and the intense light field in the micron-sized core is increased manifold as compared to conventional bioanalytical techniques, facilitating highly efficient photoactivation processes. Here we introduce a novel integrated analytical technology for photochemistry by microfluidic coupling of a HC-PCF nanoflow reactor to supplementary detection devices. Applying a continuous flow through the fiber, we deliver photochemical reaction products to a mass spectrometer in an online and hence rapid fashion, which is highly advantageous over conventional cuvette-based approaches.},
author = {Unterkofler, S. and Mcquitty, R. J. and Euser, T. G. and Farrer, N. J. and Sadler, P. J. and Russell, Philip St. John},
doi = {10.1364/OL.37.001952},
faupublication = {no},
journal = {Optics Letters},
note = {EAM Import::2019-03-12},
peerreviewed = {Yes},
title = {{Microfluidic} integration of photonic crystal fibers for online photochemical reaction analysis},
volume = {37},
year = {2012}
}
@inproceedings{faucris.121541024,
abstract = {Many applications in laser manufacturing like semiconductor lithography, micro-machining, micro-structuring or material-analysis require a homogeneous intensity distribution of the laser beam over its complete profile. Refractive and diffractive beam homogenizer solutions have been developed for this challenge, but their applicability strongly depends on the physics of the individual laser beam. This paper investigates the influence of laser beam properties like spatial coherence for microlens beam homogenizers. Diffraction at the small lens apertures and interference effects of periodic arrays are explained by using diffraction theory. Different microlens beam homogenizer configurations are presented. Design considerations that might be helpful for the layout of a specific microlens beam homogenizer system are discussed. It is shown that, among other factors, the Fresnel number is the most important quantity to characterize the influence of diffraction effects on microlens laser beam homogenizers. The influence of the spatial partial coherence will be explained for the example of a Fly's eye condenser. For cw laser sources, the influence of a rotating diffuser plate on grating interference and speckles effects is investigated. Finally, the theory will be compared to some practical examples in planar laser measurement techniques, in combustion diagnostics and micromachining with Excimer laser},
author = {Zimmermann, Maik and Lindlein, Norbert and Völkl, Ralf and Weible, Ken},
booktitle = {Laser Beam Shaping VIII},
doi = {10.1117/12.731391},
faupublication = {yes},
isbn = {9780819468116},
keywords = {Coherence; Diffraction; Diffuser; Flat-top; Homogenizer; Laser; Microlens; Shaping},
note = {LFT Import::2019-08-05 (1478)},
peerreviewed = {unknown},
title = {{Microlens} laser beam homogenizer - {From} theory to application},
venue = {San Diego, CA},
volume = {6663},
year = {2007}
}
@article{faucris.234619367,
abstract = {We report, for the first time, the observation of spontaneous parametric down-conversion (SPDC) free of phase matching (momentum conservation). We alleviate the need to conserve momentum by exploiting the position-momentum uncertainty relation and using a planar geometry source, a 6 μm thick layer of lithium niobate. Nonphase-matched SPDC opens up a new platform on which to investigate fundamental quantum effects but it also has practical applications. The ultrasmall thickness leads to a frequency spectrum an order of magnitude broader than that of phase-matched SPDC. The strong two-photon correlations are still preserved due to energy conservation. This results in ultrashort temporal correlation widths and huge frequency entanglement. The studies we make here can be considered as the initial steps into the emerging field of nonlinear quantum optics on the microscale and nanoscale.},
author = {Okoth, Cameron and Cavanna, Andrea and Santiago-Cruz, T. and Chekhova, Maria},
doi = {10.1103/PhysRevLett.123.263602},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2020-02-21},
peerreviewed = {Yes},
title = {{Microscale} {Generation} of {Entangled} {Photons} without {Momentum} {Conservation}},
volume = {123},
year = {2019}
}
@article{faucris.256885548,
abstract = {Recently, it was shown that vector beams can be utilized for fast kinematic sensing via measurements of their global polarization state [Optica 2, 864 (2015)]. The method relies on correlations between the spatial and polarization degrees of freedom of the illuminating field which result from its nonseparable mode structure. Here, we extend the method to the nonparaxial regime. We study experimentally and theoretically the far-field polarization state generated by the scattering of a dielectric microsphere in a tightly focused vector beam as a function of the particle position. Using polarization measurements only, we demonstrate position sensing of a Mie particle in three dimensions. Our work extends the concept of back focal plane interferometry and highlights the potential of polarization analysis in optical tweezers employing structured light.},
author = {Berg-Johansen, Stefan and Neugebauer, Martin and Aiello, Andrea and Leuchs, Gerd and Banzer, Peter and Marquardt, Christoph},
doi = {10.1364/OE.419540},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2021-04-30},
pages = {12429-12439},
peerreviewed = {Yes},
title = {{Microsphere} kinematics from the polarization of tightly focused nonseparable light},
volume = {29},
year = {2021}
}
@inproceedings{faucris.288239566,
abstract = {The high level of control achievable over quantized degrees of freedom has turned superconducting circuits into one of the prime physical architectures for quantum computing and simulation. Along with the continuing progress towards building a universal quantum computer, the availability of small-scale quantum devices has raised interest in hybrid quantum-classical algorithms, in which the power of quantum computation is combined with classical optimization [1]. In my talk, I will present an experimental realization of this idea based on the controlled generation of matrix product states (MPS) -- a class of states which has proven extremely powerful as a variational ansatz for numerical simulations. The correlation properties of these states are used to experimentally find the ground state of an interacting Bose gas confined in one dimension [2]. Our findings reveal interesting connections between the physics of cavity QED, solid state theory, and quantum information science. Extensions of the presented approach may be envisaged to also explore dynamical phenomena and discrete lattice models, offering interesting interdisciplinary perspectives. Technologically crucial for our experiments have been the development of quantum limited amplifiers [3] and the ability to measure photon statistics in the microwave frequency range [4]. Apart from being essential in our quest to build a practical quantum simulation platform, these technologies turn out very useful for exploring other systems such as spins and electrons in semiconductors [5,6]. [1] S. Barret et al., PRL 110, 090501 (2013), J.R. McClean et al., NJP 18, 023023, (2016) [2] C. Eichler et al., Phys. Rev. X 5, 041044 (2015) [3] C. Eichler et al. Phys. Rev. Lett. 106, 220503 (2011), C. Eichler et al. PRA 86, 032106 (2012) [4] C. Eichler et al., PRL 113, 110502 (2014), C. Eichler et al., PRL 107, 113601 (2011) [5] Y. Liu, et al., Science 347, 258 (2015), J. Stehlik et al., Phys. Rev. Applied 4, 014018 (2015) [6] Eichler et al., Phys. Rev. Lett. 118, 037701 (2017)},
address = {Munich, Germany},
author = {Eichler, Christopher},
booktitle = {Resonator QED Conference},
date = {2017-08-29},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Microwave} {Quantum} {Optics} with {Superconducting} {Circuits}: {From} {Quantum} {Variational} {Algorithms} to {Sensitive} {Electron} {Spin} {Resonance} ({ESR}) {Measurements}},
venue = {Munich, Germany},
year = {2017}
}
@article{faucris.221258140,
abstract = {We demonstrate that achiral electric-dipole scatterers can mimic an interaction of light with chiral matter by generating far-field circular polarization upon scattering, even though the optical chirality of the incident field as well as that of the scattered light is zero. On the one hand, the presented effect originates from the fact that electric-dipole scatterers respond selectively only to the incident electric field, which eventually results in depolarization of the transmitted beam and in generation of far-field circular polarization. On the other hand, although the incident beam does not possess any optical chirality, it lacks reflection symmetry and therefore it is geometrically chiral. To experimentally demonstrate this effect, we utilize a cylindrical vector beam with spiral polarization and a spherical gold nanoparticle positioned on the optical axis-the axis of rotational symmetry of the system. Our experiment and a simple theoretical model address the fundamentals of duality symmetry in optics and chiral light-matter interactions, accentuating their richness and ubiquity yet in highly symmetric configurations.},
author = {Nechayev, Sergey and Banzer, Peter},
doi = {10.1103/PhysRevB.99.241101},
faupublication = {yes},
journal = {Physical Review B},
note = {CRIS-Team WoS Importer:2019-06-25},
peerreviewed = {Yes},
title = {{Mimicking} chiral light-matter interaction},
volume = {99},
year = {2019}
}
@article{faucris.111776764,
author = {Lindlein, Norbert and et al.},
author_hint = {Pfund Johannes, Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.misali},
pages = {22-27},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Misalignment} effects of the {Shack}-{Hartmann} sensor},
volume = {1},
year = {1997}
}
@article{faucris.121542124,
abstract = {The Shack–Hartmann sensor uses a microlens array and a CCD camera for wave–front measurements. To obtain wave–front measurements with high accuracy, an accurate relative alignment of both is essential. The different states of misalignment of the Shack–Hartmann sensor are divided into groups and are treated theoretically and experimentally. Their effect on the accuracy of wave–front measurements is evaluated. In addition, a practical method for proper alignment of the Shack–Hartmann sensor is proposed. © 1998 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Pfund J., Lindlein N., Schwider J.},
doi = {10.1364/AO.37.000022},
faupublication = {yes},
journal = {Applied Optics},
pages = {22-27},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Misalignment} effects of the shack–hartmann sensor},
volume = {37},
year = {1998}
}
@inproceedings{faucris.276463492,
abstract = {We report on a compact and stable optical parametric oscillator in a whispering gallery mode resonator, that combines very low pump thresholds with versatile tunability. © 2012 OSA.},
author = {Förtsch, Michael and Schunk, Gerhard and Sedlmeir, Florian and Fürst, Josef and Wittmann, Christoffer and Strekalov, Dmitry and Schwefel, Harald G.L. and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {2012 Conference on Lasers and Electro-Optics, CLEO 2012},
date = {2012-05-06/2012-05-11},
faupublication = {yes},
isbn = {9781467318396},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Mode}-hop-free tunable optical parametric oscillator utilizing a whispering gallery mode resonator},
venue = {USA},
year = {2012}
}
@inproceedings{faucris.226028399,
abstract = {This paper shows the modeling, simulation and production of polymer optical waveguides using the OPTAVER process. The additive manufactured multimode waveguides with their typical cross-section of a circle shape are of low cost and high-performance.
2+ / H2O 2 [5]. © 2011 IEEE.},
author = {Cubillas, Ana Maria and Schmidt, Matthias and Scharrer, Michael and Euser, T. G. and Etzold, Bastian and Taccardi, Nicola and Wasserscheid, Peter and Russell, Philip St. John},
booktitle = {2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011},
date = {2011-05-22/2011-05-26},
doi = {10.1109/CLEOE.2011.5943061},
faupublication = {yes},
isbn = {9781457705335},
note = {CRIS-Team Scopus Importer:2023-08-15},
peerreviewed = {unknown},
title = {{Monitoring} of catalytic reactions in photonic crystal fiber},
venue = {DEU},
year = {2011}
}
@inproceedings{faucris.265514642,
abstract = {Optical modes in whispering-gallery-mode (WGM) resonators generally come in pairs of degenerate modes with opposite propagation directions: a clockwise and a counter-clockwise mode. However, sub-wavelength-size imperfections on the surface and in the bulk material of the resonators, usually cause some amount of Rayleigh scattering between the modes [1]. For sufficiently high levels of backscattering, the coupling between the modes can be observed as a resolvable splitting in the frequency domain [2]. Coupling of the modes is unfavourable for some WGM resonator applications, for example gyroscopes [3] , dual frequency combs [4] , and applications relying on symmetry breaking of counter-propagating light [5] , [6].},
author = {Svela, Andreas O. and Silver, Jonathan M. and Del Bino, Leonardo and Zhang, Shuangyou and Woodley, Michael T.M. and Vanner, Michael R. and Del'Haye, Pascal},
booktitle = {2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021},
date = {2021-06-21/2021-06-25},
doi = {10.1109/CLEO/Europe-EQEC52157.2021.9542007},
faupublication = {yes},
isbn = {9781665418768},
note = {CRIS-Team Scopus Importer:2021-10-29},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{More} {Than} 34 {dB} {Backscattering} {Suppression} in {Microresonators}},
venue = {Munich},
year = {2021}
}
@inproceedings{faucris.120768384,
abstract = {A novel regenerator scheme for all-optical multilevel simultaneous amplitude and phase noise suppression is proposed. For a star-8QAM signal, consisting of two amplitude and four phase states, EVM reduction is 4 dB and 2.5 dB for the high- and low-power states, respectively. The limiting effects of the regenerator performance have been considered.},
author = {Röthlingshöfer, Tobias and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Transparent Optical Networks (ICTON)},
doi = {10.1364/ECEOC.2012.Tu.1.A.3},
faupublication = {yes},
note = {lhft{\_}intern.bib::Roethlingshoefer2012cb},
peerreviewed = {Yes},
publisher = {The Optical Society},
title = {{Multilevel} amplitude and phase regeneration in a nonlinear amplifying loop mirror with a phase-sensitive amplifier},
year = {2012}
}
@article{faucris.111714944,
author = {Hierold, Martin and Roethlingshoefer, Tobias and Sponsel, Klaus and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/LPT.2011.2149510},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
note = {lhft{\_}intern.bib::Hierold2011},
pages = {1007-1009},
peerreviewed = {Yes},
title = {{Multilevel} {Phase}-{Preserving} {Amplitude} {Regeneration} {Using} a {Single} {Nonlinear} {Amplifying} {Loop} {Mirror}},
volume = {23},
year = {2011}
}
@article{faucris.258785506,
abstract = {Phase-sensitive optical parametric amplification of squeezed states helps to overcome detection loss and noise and thus increases the robustness of sub-shot-noise sensing. Because such techniques, e.g., imaging and spectroscopy, operate with multimode light, multimode amplification is required. Here we find the optimal methods for multimode phase-sensitive amplification and verify them in an experiment where a pumped second-order nonlinear crystal is seeded with a Gaussian coherent beam. Phase-sensitive amplification is obtained by tightly focusing the seed into the crystal, rather than seeding with close-to-plane waves. This suggests that phase-sensitive amplification of sub-shot-noise images should be performed in the near field. A similar recipe can be formulated for the time and frequency, which makes this work relevant for quantum-enhanced spectroscopy.},
author = {Frascella, Gaetano and Zakharov, R. V. and Tikhonova, O. V. and Chekhova, Maria},
doi = {10.1364/OL.422876},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2021-05-21},
pages = {2364-2367},
peerreviewed = {Yes},
title = {{Multimode} optical parametric amplification in the phase-sensitive regime},
volume = {46},
year = {2021}
}
@incollection{faucris.120962644,
address = {London},
author = {Leuchs, Gerd and et al.},
author_hint = {Korolkova Natalia, Leuchs Gerd},
booktitle = {Coherence and Statistics of Photons and Atoms},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2001.nat.dphy.optik.1optik.multim},
pages = {111-158},
peerreviewed = {Yes},
publisher = {John Wiley & Sons, Inc.},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Multimode} {Quantum} {Correlations}},
year = {2001}
}
@article{faucris.108262704,
author = {Schwider, Johannes and Leuchs, Gerd},
faupublication = {yes},
journal = {Optics Express},
pages = {8094--8106},
peerreviewed = {Yes},
title = {{Multi}-pass {Shack}-{Hartmann} planeness test: monitoring thermal stress},
volume = {18},
year = {2010}
}
@inproceedings{faucris.245145950,
abstract = {Light generated through strongly pumped parametric down-conversion has extremely strong photon-number fluctuations and is therefore highly efficient for multiphoton effects. In addition, its spectral and spatial properties can be tailored to allow two-dimensional multiphoton spectroscopy.},
author = {Kopylov, D. A. and Spasibko, K. Yu and Cutipa, P. and Murzina, T. V. and Chekhova, Maria},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}AT.2020.JTh3N.1},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Multiphoton} effects with bright squeezed vacuum},
venue = {Washington, DC},
volume = {Part F181-CLEO-AT 2020},
year = {2020}
}
@article{faucris.109233564,
author = {Leuchs, Gerd and et al.},
author_hint = {Trautner J. , Walcher K. , Leuchs Gerd, Bodermann B. , Telle H. R.},
faupublication = {yes},
journal = {Technisches Messen},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.multip},
pages = {406},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Multiple}-{Wavelength} {Interferometry} for {Absolute} {Distance} {Measurement} and {Three}-{Dimentional} {Imaging}},
volume = {67},
year = {2000}
}
@article{faucris.276460058,
abstract = {We advocate a simple multipole expansion of the polarization density matrix. The resulting multipoles appear as successive moments of the Stokes variables and can be obtained from feasible measurements. In terms of these multipoles we construct a whole hierarchy of measures that accurately assess higher-order polarization fluctuations. © 2013 American Physical Society.},
author = {De La Hoz, Pablo and Klimov, A. B. and Bjork, G. and Kim, Y. -H. and Mueller, C. and Marquardt, Christoph and Leuchs, Gerd and Sanchez-Soto, L. L. and Marquardt, Christoph},
doi = {10.1103/PhysRevA.88.063803},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Multipolar} hierarchy of efficient quantum polarization measures},
volume = {88},
year = {2013}
}
@article{faucris.218419227,
abstract = {Electromagnetic plane waves, solutions to Maxwell's equations, are said to be 'transverse' in vacuum. Namely, the waves' oscillatory electric and magnetic fields are confined within a plane transverse to the waves' propagation direction. Under tight-focusing conditions however, the field can exhibit longitudinal electric or magnetic components, transverse spin angular momentum, or non-trivial topologies such as Mobius strips. Here, we show that when a suitably spatially structured beam is tightly focused, a three-dimensional polarization topology in the form of a ribbon with two full twists appears in the focal volume. We study experimentally the stability and dynamics of the observed polarization ribbon by exploring its topological structure for various radii upon focusing and for different propagation planes.},
author = {Bauer, Thomas and Banzer, Peter and Bouchard, Frederic and Orlov, Sergej and Marrucci, Lorenzo and Santamato, Enrico and Boyd, Robert W. and Karimi, Ebrahim and Leuchs, Gerd},
doi = {10.1088/1367-2630/ab171b},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team WoS Importer:2019-05-24},
peerreviewed = {Yes},
title = {{Multi}-twist polarization ribbon topologies in highly-confined optical fields},
volume = {21},
year = {2019}
}
@article{faucris.115204144,
abstract = {We employ a straightforward relation between mutually unbiased and Bell bases to extend the latter in terms of a direct construction for the former. We analyze in detail the properties of these generalized Bell states, showing that they constitute an appropriate tool for testing entanglement in bipartite multiqudit systems. © 2009 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Klimov Andrei B, Sych Denis, Sanchez-Soto Luis L, Leuchs Gerd},
doi = {10.1103/PhysRevA.79.052101},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-04-14:Pub.2009.nat.dphy.optik.1optik.mutual},
pages = {052101},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Mutually} unbiased bases and generalized {Bell} states},
volume = {79},
year = {2009}
}
@inproceedings{faucris.276470635,
abstract = {A nanoscale hole placed centrally in the core of a PCF breaks the degeneracy between radially and azimuthally polarized modes, causing a large splitting in phase velocity, group velocity and dispersion. © 2010 Optical Society of America.},
author = {Euser, T. G. and Joly, N. Y. and Gabriel, C. and Marquardt, Christoph and Zang, L. Y. and Banzer, P. and Brenn, A. and Elser, D. and Förtsch, M. and Rammler, S. and Scharrer, M. and Leuchs, Gerd and Russell, P. St J.},
booktitle = {Optics InfoBase Conference Papers},
date = {2010-05-16/2010-05-21},
faupublication = {yes},
isbn = {9781557528896},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Nanobore} {PCF} maintaining cylindrically polarized modes},
venue = {USA},
year = {2010}
}
@inproceedings{faucris.243606162,
abstract = {We report non-destructive measurement of the diameter of submicron air-clad waveguides to nanometer precision, based on parametric amplification of a broadband seed signal. Ultrashort pump and seed pulses allow the diameter to be longitudinally resolved.},
author = {Hammer, Jonas and Haupl, Daniel R. and Russell, Philip St. John and Joly, Nicolas},
booktitle = {Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS},
date = {2020-05-10/2020-05-15},
faupublication = {yes},
isbn = {9781943580767},
note = {CRIS-Team Scopus Importer:2020-10-09},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Nanometer} {Precision} {Measurement} of {Submicron} {Fibers} via {Seeded} {Four}-{Wave}-{Mixing}},
venue = {San Jose, CA},
volume = {2020-May},
year = {2020}
}
@article{faucris.240993344,
author = {Sandoghdar, Vahid},
doi = {10.1021/acs.nanolett.0c02199},
faupublication = {yes},
journal = {Nano Letters},
note = {CRIS-Team Scopus Importer:2020-07-31},
peerreviewed = {No},
title = {{Nano}-{Optics} in 2020 ± 20},
year = {2020}
}
@article{faucris.213074486,
abstract = {We experimentally demonstrate an ultracompact PlasMOStor, a plasmon slot waveguide field-effect modulator based on a transparent conducting oxide active region. By electrically modulating the conducting oxide material deposited into the gaps of highly confined plasmonic slot waveguides, we demonstrate field-effect dynamics giving rise to modulation with high dynamic range (2.71 dB/\textgreekmm) and low waveguide loss ($∼$0.45 dB/\textgreekmm). The large modulation strength is due to the large change in complex dielectric function when the signal wavelength approaches the surface plasmon resonance in the voltage-tuned conducting oxide accumulation layer. The results provide insight about the design of ultracompact, nanoscale modulators for future integrated nanophotonic circuits.},
author = {Lee, Ho W. and Papadakis, Georgia and Burgos, Stanley P. and Chander, Krishnan and Kriesch, Arian and Pala, Ragip and Peschel, Ulf and Atwater, Harry A.},
doi = {10.1021/nl502998z},
faupublication = {yes},
journal = {Nano Letters},
note = {EAM Import::2019-03-12},
pages = {6463-6468},
peerreviewed = {Yes},
title = {{Nanoscale} {Conducting} {Oxide} {PlasMOStor}},
year = {2014}
}
@inproceedings{faucris.266776616,
abstract = {We generate entangled photons via spontaneous parametric down-conversion (SPDC) in subwavelength films of nonlinear materials and all-dielectric nonlinear metasurfaces. The SPDC spectra reveal resonances: Fabry-Perot in the first case and Mie in the second case.},
author = {Chekhova, Maria},
booktitle = {Optics InfoBase Conference Papers},
date = {2021-08-09/2021-08-13},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-12-03},
peerreviewed = {unknown},
publisher = {The Optical Society},
title = {{Nanoscale} spontaneous parametric down-conversion},
venue = {Virtual, Online},
year = {2021}
}
@article{faucris.256886053,
abstract = {We present efficient evanescent coupling of single organic molecules to a gallium phosphide (GaP) subwavelength waveguide (nanoguide) decorated with microelectrodes. By monitoring their Stark shifts, we reveal that the coupled molecules experience fluctuating electric fields. We analyze the spectral dynamics of different molecules over a large range of optical powers in the nanoguide to show that these fluctuations are light-induced and local. A simple model is developed to explain our observations based on the optical activation of charges at an estimated mean density of 2.5×1022 m-3 in the GaP nanostructure. Our work showcases the potential of organic molecules as nanoscopic sensors of the electric charge as well as the use of GaP nanostructures for integrated quantum photonics.},
author = {Shkarin, Alexey and Rattenbacher, Dominik and Renger, Jan and Hönl, Simon and Utikal, Tobias and Seidler, Paul and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1103/PhysRevLett.126.133602},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2021-04-30},
peerreviewed = {Yes},
title = {{Nanoscopic} {Charge} {Fluctuations} in a {Gallium} {Phosphide} {Waveguide} {Measured} by {Single} {Molecules}},
volume = {126},
year = {2021}
}
@article{faucris.244326205,
abstract = {Atom-light interactions in micro- and nanoscale systems hold great promise for alternative technologies based on integrated emitters and optical modes. We present the design architecture, construction method, and characterization of an all-glass alkali-metal vapor cell with nanometer-scale internal structure. Our cell has a glue-free design that allows versatile optical access, in particular with high numerical aperture optics, and incorporates a compact integrated heating system in the form of an external deposited indium tin oxide layer. By performing spectroscopy in different illumination and detection schemes, we investigate atomic densities and velocity distributions in various nanoscopic landscapes. We apply a two-photon excitation scheme to atoms confined in one dimension within our cells, achieving resonance line widths more than an order of magnitude smaller than the Doppler width. We also demonstrate sub-Doppler line widths for atoms confined in two dimensions to micron-sized channels. Furthermore, we illustrate control over vapor density within our cells through nanoscale confinement alone, which could offer a scalable route towards room-temperature devices with single atoms within an interaction volume. Our design offers a robust platform for miniaturized devices that could easily be combined with integrated photonic circuits.},
author = {Cutler, T. F. and Hamlyn, W. J. and Renger, J. and Whittaker, K. A. and Pizzey, D. and Hughes, I. G. and Sandoghdar, Vahid and Adams, C. S.},
doi = {10.1103/PhysRevApplied.14.034054},
faupublication = {yes},
journal = {Physical Review Applied},
note = {CRIS-Team WoS Importer:2020-10-23},
peerreviewed = {Yes},
title = {{Nanostructured} {Alkali}-{Metal} {Vapor} {Cells}},
volume = {14},
year = {2020}
}
@article{faucris.242415167,
abstract = {Many fields such as biospectroscopy and photochemistry often require sources of vacuum ultraviolet (VUV) pulses featuring a narrow line width and tunable over a wide frequency range. However, the majority of available VUV light sources do not simultaneously fulfill those two requirements and few if any are truly compact, cost-effective, and easy to use by nonspecialists. Here we introduce a novel approach that goes a long way to meeting this challenge. It is based on hydrogen-filled hollow-core photonic crystal fiber pumped simultaneously by two spectrally distant pulses. Stimulated Raman scattering enables the generation of coherence waves of collective molecular motion in the gas, which together with careful dispersion engineering and control over the modal content of the pump light, facilitates cooperation between the two separate Raman combs, resulting in a spectrum that reaches deep into the VUV. Using this system, we demonstrate the generation of a dual Raman comb of narrowband lines extending down to 141 nm using only 100 mW of input power delivered by a commercial solid-state laser. The approach may enable access to tunable VUV light to any laboratory and therefore boost progress in many research areas across multiple disciplines.},
author = {Tyumenev, Rinat and Russell, Philip St. John and Novoa, David},
doi = {10.1021/acsphotonics.0c00929},
faupublication = {yes},
journal = {ACS Photonics},
note = {CRIS-Team WoS Importer:2020-09-11},
pages = {1989-1993},
peerreviewed = {Yes},
title = {{Narrowband} {Vacuum} {Ultraviolet} {Light} via {Cooperative} {Raman} {Scattering} in {Dual}-{Pumped} {Gas}-{Filled} {Photonic} {Crystal} {Fiber}},
volume = {7},
year = {2020}
}
@inproceedings{faucris.245143890,
abstract = {A Raman comb extending down to 140 nm in the vacuum UV is generated in hydrogen-filled hollow-core photonic crystal fiber pumped simultaneously by visible and UV pulses obtained from a compact 1030 nm pump laser.},
author = {Tyumenev, Rinat and Novoa, David and Russell, Philip St. John},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}QELS.2020.FM2P.6},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Narrowband} {VUV} light by molecular modulation in dual-pumped {H2}-filled hollow-core photonic crystal fiber},
venue = {Washington, DC},
volume = {Part F182-CLEO-QELS 2020},
year = {2020}
}
@article{faucris.276472120,
abstract = {We demonstrate for the first time natural phase matching for optical frequency doubling in a high-Q whispering-gallery-mode resonator made of lithium niobate. A conversion efficiency of 9% is achieved at 30μW in-coupled continuous wave pump power. The observed saturation pump power of 3.2 mW is almost 2 orders of magnitude lower than the state-of-the-art value. This suggests an application of our frequency doubler as a source of nonclassical light requiring only a low-power pump, which easily can be quantum noise limited. Our theoretical analysis of the three-wave mixing in a whispering-gallery-mode resonator provides the relative conversion efficiencies for frequency doubling in various modes. © 2010 The American Physical Society.},
author = {Fuerst, J. U. and Strekalov, D. V. and Elser, Dominique Alexander and Lassen, M. and Andersen, U. L. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.104.153901},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Naturally} phase-matched second-harmonic generation in a whispering-gallery-mode resonator},
volume = {104},
year = {2010}
}
@inproceedings{faucris.276470876,
abstract = {We observed conversion efficiencies of 9% at 30 μW pump power in LiNbO3, as well as self-limiting effects at high powers. The continuous-wave pump at a wavelength of 1064nm and the second-harmonic feature Q > 10
7. © 2010 Optical Society of America.},
author = {Fürst, Josef and Strekalov, Dmitry and Elser, Dominique Alexander and Lassen, Mikael and Andersen, Ulrik L. and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010},
date = {2010-05-16/2010-05-21},
faupublication = {yes},
isbn = {9781557528902},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Naturally} phase matched second harmonic generation in a whispering gallery mode resonator},
venue = {USA},
year = {2010}
}
@article{faucris.213072738,
abstract = {Plasmonic metasurfaces are investigated that consist of a sub-wavelength line pattern in an ultrathin (~10 nm) silver film, designed for extraordinary suppressed transmission (EOST) in the visible spectral range. Measurements with a near-field scanning optical microscope (NSOM) demonstrate that farfield irradiation resonantly excites antenna-like (bright) modes that are localized on the metal ridges. The re-radiation of these modes into the far-field interferes destructively with the transmitted wave, thus suppressing transmission almost completely. In contrast, a second type of mode, bound (dark) surface plasmon polaritons (SPPs) launched from an NSOM tip, propagates well across the metasurface, preferentially perpendicular to the grating lines.},
author = {Dobmann, Sabine and Kriesch, Arian and Ploss, Daniel and Peschel, Ulf},
doi = {10.1002/adom.201400237},
faupublication = {yes},
journal = {Advanced Optical Materials},
note = {EAM Import::2019-03-12},
pages = {990-999},
peerreviewed = {Yes},
title = {{Near}-{Field} {Analysis} of {Bright} and {Dark} {Modes} on {Plasmonic} {Metasurfaces} {Showing} {Extraordinary} {Suppressed} {Transmission}},
volume = {2},
year = {2014}
}
@article{faucris.276453624,
abstract = {We demonstrate a method to perform spectroscopy of near-infrared single photons without the need of dispersive elements. This method is based on a photon energy resolving transition edge sensor and is applied for the characterization of widely wavelength tunable narrow-band single photons emitted from a crystalline whispering gallery mode resonator. We measure the emission wavelength of the generated signal and idler photons with an uncertainty of up to 2 nm.},
author = {Foertsch, Michael and Gerrits, Thomas and Stevens, Martin J. and Strekalov, Dmitry and Schunk, Gerhard and Fuerst, Josef U. and Vogl, Ulrich and Sedlmeir, Florian and Schwefel, Harald G. L. and Leuchs, Gerd and Nam, Sae Woo and Marquardt, Christoph},
doi = {10.1088/2040-8978/17/6/065501},
faupublication = {yes},
journal = {Journal of Optics},
keywords = {boronitrene; graphene; nonlinear optics; sum-frequency generation},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Near}-infrared single-photon spectroscopy of a whispering gallery mode resonator using energy-resolving transition edge sensors},
volume = {17},
year = {2015}
}
@inproceedings{faucris.117973284,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Karbacher St., Böttcher F., Ettl Peter, Lampalzer R., Laboureux Xavier, Schön Nikolaus, Veit Klaus, Häusler Gerd},
booktitle = {Optische 3D-Formerfassung},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1999.nat.dphy.optik.1optik.neueer},
pages = {?},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Neue} {Ergebnisse} in der optischen {Datengewinnung} und der {Weiterverarbeitung}},
venue = {Osterfildern},
year = {1999}
}
@inproceedings{faucris.227009961,
abstract = {Recent fabrication methods print polymer optical waveguides (POWs) on three-dimensional carriers. The special geometry of the POWs enables the realisation of an optical ray splitter which is simulated by raytracing using a new bisection-algorithm.},
author = {Backhaus, Carsten and Dötzer, Florian and Hoffmann, Gerd-Albert and Lorenz, Lukas and Overmeyer, Ludger and Bock, Karlheinz and Lindlein, Norbert},
booktitle = {Frontiers in Optics + Laser Science APS/DLS},
doi = {10.1364/fio.2019.jw4a.56},
faupublication = {yes},
keywords = {Laser light; Optical design; Polymer waveguides; Printed circuit boards; Ray tracing; Stray light},
peerreviewed = {Yes},
publisher = {Optical Society of America},
title = {{New} concept of a polymer optical ray splitter simulated by {Raytracing} with a new {Bisection}-{Algorithm}},
url = {http://www.osapublishing.org/abstract.cfm?URI=FiO-2019-JW4A.56},
year = {2019}
}
@article{faucris.106865484,
abstract = {High-quality fabrication of plasmonic devices often relies on wet-chemically grown ultraflat, presumably single-crystalline gold flakes due to their superior materials properties. However, important details about their intrinsic structure and their optical properties are not well understood yet. In this study, we present a synthesis routine for large flakes with diameters of up to 70 mu m and an in-depth investigation of their structural and optical properties. The flakes are precisely analyzed by transmission electron microscopy, electron backscatter diffraction and micro-ellipsometry. We found new evidence for the existence of twins extending parallel to the Au flake {111} surfaces which have been found to not interfere with the presented nanopatterning. Micro-Ellipsometry was carried out to determine the complex dielectric function and to compare it to previous measurements of bulk single crystalline gold. Finally, we used focused ion beam milling to prepare smooth crystalline layers and high-quality nanostructures with desired thickness down to 10 nm to demonstrate the outstanding properties of the flakes. Our findings support the plasmonics and nano optics community with a better understanding of this material which is ideally suited for superior plasmonic nanostructures.},
author = {Hoffmann, B. and Bashouti, M. Y. and Feichtner, Thorsten and Mackovic, Mirza and Dieker, Christel and Salaheldin, A. M. and Richter, P. and Gordan, O. D. and Zahn, D. R. T. and Spiecker, Erdmann and Christiansen, S. and Hoffmann, Björn},
doi = {10.1039/c5nr04439a},
faupublication = {yes},
journal = {Nanoscale},
month = {Jan},
pages = {4529-4536},
peerreviewed = {Yes},
title = {{New} insights into colloidal gold flakes: structural investigation, micro-ellipsometry and thinning procedure towards ultrathin monocrystalline layers},
volume = {8},
year = {2016}
}
@inproceedings{faucris.117964044,
author = {Häusler, Gerd and et al.},
author_hint = {Ammon G., Andretzky P., Blossey S., Bohn G., Ettl Peter, Habermeier H.-P., Häusler Gerd, Laszlo I., Schmidt B.},
booktitle = {Proc. of the 3rd Int. Workshop on Automatic Processing of Fringe Patterns},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1997.nat.dphy.optik.1optik.newmod},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{New} {Modifications} of the {Coherence} {Radar}},
venue = {Bremen},
year = {1997}
}
@inproceedings{faucris.120604484,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Kreipel S., Lampalzer R., Schielzeth A., Spellenberg B.},
booktitle = {Proc. of the EOS Topical Meeting on Optoelectronics Distance Measurements and Applications},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1997.nat.dphy.optik.1optik.newran},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{New} {Range} {Sensors} at the {Physical} {Limit} of {Measuring} {Uncertainty}},
venue = {Nantes},
year = {1997}
}
@article{faucris.120377664,
author = {Leuchs, Gerd and et al.},
author_hint = {Courty J.M., Spälter Stefan, Sizmann Andreas, Leuchs Gerd},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.noisef},
pages = {1501-1598},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Noise}-free {QND}-measurement using optical solitons},
volume = {58},
year = {1998}
}
@article{faucris.276472371,
abstract = {Phase-insensitive optical amplification of an unknown quantum state is known to be a fundamentally noisy operation that inevitably adds noise to the amplified state. However, this fundamental noise penalty in amplification can be circumvented by resorting to a probabilistic scheme as recently proposed and demonstrated in refs 6, 7, 8. These amplifiers are based on highly non-classical resources in a complex interferometer. Here we demonstrate a probabilistic quantum amplifier beating the fundamental quantum limit using a thermal-noise source and a photon-number-subtraction scheme. The experiment shows, surprisingly, that the addition of incoherent noise leads to a noiselessly amplified output state with a phase uncertainty below the uncertainty of the state before amplification. This amplifier might become a valuable quantum tool in future quantum metrological schemes and quantum communication protocols. © 2010 Macmillan Publishers Limited. All rights reserved.},
author = {Usuga, Mario A. and Müller, Christian and Wittmann, Christoffer and Marek, Petr and Filip, Radim and Marquardt, Christoph and Leuchs, Gerd and Andersen, Ulrik L.},
doi = {10.1038/nphys1743},
faupublication = {yes},
journal = {Nature Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {767-771},
peerreviewed = {Yes},
title = {{Noise}-powered probabilistic concentration of phase information},
volume = {6},
year = {2010}
}
@article{faucris.111536304,
abstract = {We present a nonlinear optical loop mirror (NOLM)-based 2R-regenerator setup, which is capable of regenerating signals modulated in phase-sensitive modulation formats. In a conventional NOLM, fluctuations of the signal amplitude are converted into phase fluctuations. Therefore, it is not suitable for regeneration of signals, modulated in formats such as differential phase-shift keying (DPSK) or duobinary. In this letter, we present a modified NOLM setup for 2R-regeneration taking return-to-zero DPSK as an example. © 2005 IEEE.},
author = {Striegler, Arne and Meißner, Markus and Cvecek, Kristian and Sponsel, Klaus and Leuchs, Gerd and Schmauß, Bernhard},
doi = {10.1109/LPT.2004.842320},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
keywords = {All-optical regeneration; Differential phase-shift keying (DPSK); Nonlinear optical loop mirror (NOLM)},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.nolmba},
pages = {639-641},
peerreviewed = {Yes},
title = {{NOLM} based {DPSK} {Signal} {Regeneration}},
volume = {17},
year = {2005}
}
@inproceedings{faucris.276465227,
abstract = {We present the generation of quantum correlated twin beams in a whispering gallery mode resonator made from lithium niobate and the first direct observation of amplitude squeezing for the single parametric beams. © 2011 AOS.},
author = {Förtsch, Michael and Schunk, G. and Fürst, J. U. and Strekalov, D. V. and Aiello, A. and Andersen, U. L. and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2011-08-28/2011-09-01},
faupublication = {yes},
isbn = {9780977565771},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {92-93},
peerreviewed = {unknown},
title = {{Non}-classical light generated in a whispering gallery mode parametric oscillator},
venue = {AUS},
year = {2011}
}
@article{faucris.212752944,
abstract = {The efficient manipulation with optical spectra of colloidal photonic crystals was achieved using the metal mirror positioned either immediately or at a distance from the crystal surface. If the mirror is close to the surface, the changes are mostly quantitative and relate to the improved light confinement. If the spacer provides a 2\textgreekp phase shift for round trip of the light at the wavelength of the diffraction resonance of the opal lattice, the defect band is formed in the photonic stop-band leading to 20--40 times increase of the transmission. The upper limit of the quality factor of the defect band was estimated by extrapolating the development of the defect transmission band as a function of the photonic crystal thickness. The specific features related to the photonic crystal dimensionality were revealed in the defect band spectra. The obtained results support the idea of achieving the control on the optical functionality of photonic crystals by recycling the transmitted light in the crystal volume.},
author = {Romanov, Sergei G. and Regensburger, Alois and Korovin, Alexander V. and Romanova, Alexandra and Peschel, Ulf},
doi = {10.1103/PhysRevB.88.125418},
faupublication = {yes},
journal = {Physical Review B},
note = {EAM Import::2019-03-08},
peerreviewed = {Yes},
title = {{Noninvasive} manipulation of the optical response of opal photonic crystals},
volume = {88},
year = {2013}
}
@article{faucris.228438671,
abstract = {Single-ring hollow-core photonic crystal fibers, consisting of a ring of one or two thin-walled glass capillaries surrounding a central hollow core, hold great promise for use in optical communications and beam delivery, and are already being successfully exploited for extreme pulse compression and efficient wavelength conversion in gases. However, achieving low loss over long (km) lengths requires highly accurate maintenance of the microstructure—a major fabrication challenge. In certain applications, for example adiabatic mode transformers, it is advantageous to taper the fibers, but no technique exists for measuring the delicate and complex microstructure without first cleaving the taper at several positions along its length. In this Letter, we present a simple non-destructive optical method for measuring the diameter of individual capillaries. Based on recording the spectrum scattered from whispering gallery modes excited in the capillary walls, the technique is highly robust, allowing real-time measurement of fiber structure during the draw with sub-micron accuracy.},
author = {Frosz, Michael H. and Pennetta, Riccardo and Enders, Michael T. and Ahmed, Goran and Russell, Philip St. John},
doi = {10.1364/OE.27.030842},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2019-10-29},
pages = {30842-30851},
peerreviewed = {Yes},
title = {{Non}-invasive real-time characterization of hollow-core photonic crystal fibers using whispering gallery mode spectroscopy},
volume = {27},
year = {2019}
}
@inproceedings{faucris.229196524,
abstract = {Single-ring hollow-core photonic crystal fibre (SR-PCF), consisting of a ring of thin-walled glass capillaries surrounding a central hollow core, can offer remarkably low transmission loss [1], and is finding applications in, e.g., wavelength conversion and pulse compression in gases, high-power beam delivery and circular dichroism [2]. As with all microstructured fibres, it is highly desirable to continuously measure the internal structural parameters (e.g. the capillary diameter) during fibre drawing. This would improve the yield of useful fibre lengths, as well as offering better control of structural uniformity along the fibre. Successful tapering of hollow-core fibres also requires a non-destructive method of verifying structural integrity along the taper.},
author = {Frosz, Michael H. and Pennetta, Riccardo and Enders, Michael T. and Ahmed, Goran and Russell, Philip St. John},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8873228},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Non}-invasive real-time characterization of hollow-core photonic crystal fibres using whispering gallery mode spectroscopy},
venue = {Munich, DEU},
year = {2019}
}
@article{faucris.276450109,
abstract = {Optical whispering gallery modes (WGMs) derive their name from a famous acoustic phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This phenomenon has a rather general nature, equally applicable to sound and all other waves. It enables resonators of unique properties attractive both in science and engineering. Very high quality factors of optical WGM resonators persisting in a wide wavelength range spanning from radio frequencies to ultraviolet light, their small mode volume, and tunable in- and out- coupling make them exceptionally efficient for nonlinear optical applications. Nonlinear optics facilitates interaction of photons with each other and with other physical systems, and is of prime importance in quantum optics. In this paper we review numerous applications of WGM resonators in nonlinear and quantum optics. We outline the current areas of interest, summarize progress, highlight difficulties, and discuss possible future development trends in these areas.},
author = {Strekalov, Dmitry V. and Marquardt, Christoph and Matsko, Andrey B. and Schwefel, Harald G. L. and Leuchs, Gerd},
doi = {10.1088/2040-8978/18/12/123002},
faupublication = {yes},
journal = {Journal of Optics},
keywords = {microresonators; non-classical light; optical wave mixing},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Nonlinear} and quantum optics with whispering gallery resonators},
volume = {18},
year = {2016}
}
@article{faucris.264870825,
abstract = {Optical gyroscopes based on the Sagnac effect have been the mainstay of inertial navigation in aerospace and shipping for decades. These gyroscopes are typically realized either as ring-laser gyroscopes (RLGs) or fiber-optic gyroscopes (FOGs). With the recent rapid progress in the field of ultrahigh-quality optical whispering-gallery mode and ring microresonators, attention has been focused on the development of microresonator-based Sagnac gyroscopes as a more compact alternative to RLGs and FOGs. One avenue that has been explored is the use of exceptional points in non-Hermitian systems to enhance the responsivity to rotation. We use a similar phenomenon, namely, the critical point of a spontaneous symmetry-breaking transition between counterpropagating light, to demonstrate a microresonator gyroscope with a responsivity enhanced by a factor of around 10(4). We present a proof-of-principle rotation measurement as well as a characterization of the system's dynamical response, which shows the universal critical behaviors of responsivity enhancement and critical slowing down, both of which are beneficial in an optical gyroscope. We believe that this concept could be used to realize simple and cheap chip-based gyroscopes with sensitivities approaching those of today's RLGs and FOGs. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement},
author = {Silver, Jonathan M. and Del Bino, Leonardo and Woodley, Michael T. M. and Ghalanos, George N. and Svela, Andreas O. and Moroney, Niall and Zhang, Shuangyou and Grattan, Kenneth T. and Del'Haye, Pascal},
doi = {10.1364/OPTICA.426018},
faupublication = {yes},
journal = {Optica},
note = {CRIS-Team WoS Importer:2021-10-08},
pages = {1219-1226},
peerreviewed = {Yes},
title = {{Nonlinear} enhanced microresonator gyroscope},
volume = {8},
year = {2021}
}
@article{faucris.276462027,
author = {Marquardt, Christoph and Strekalov, Dmitry V. and Fürst, Josef and Förtsch, Michael and Leuchs, Gerd},
doi = {10.1364/OPN.24.7.000038},
faupublication = {yes},
journal = {Optics and Photonics News},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {38-45},
peerreviewed = {unknown},
title = {{Nonlinear} optics in crystalline: {Whispering} gallery resonators},
volume = {24},
year = {2013}
}
@article{faucris.222054281,
author = {Penjweini, Rojiar and Weber, Markus and Sondermann, Markus and Boyd, Robert W. and Leuchs, Gerd},
doi = {10.1364/OPTICA.6.000878},
faupublication = {yes},
journal = {Optica},
pages = {878--883},
peerreviewed = {Yes},
title = {{Nonlinear} optics with full three-dimensional illumination},
volume = {6},
year = {2019}
}
@inproceedings{faucris.267486692,
abstract = {We use single solid state organic molecules strongly coupled to a tunable FabryPerot microcavity to perform nonlinear optics experiments at the single quantum limit.},
author = {Pscherer, Andre and Meierhofer, Manuel and Wang, Daqing and Kelkar, Hrishikesh and Martin-Cano, DIego and Utikal, Tobias and Gotzinger, Stephan and Sandoghdar, Vahid},
booktitle = {2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings},
date = {2021-05-09/2021-05-14},
faupublication = {yes},
isbn = {9781943580910},
note = {CRIS-Team Scopus Importer:2021-12-24},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Nonlinear} optics with one molecule and two photons},
venue = {Virtual, Online, USA},
year = {2021}
}
@inproceedings{faucris.107124424,
author = {Sponsel, K. and Stephan, C. and Onishchukov, G. and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {OSA Optics and Photonics Congress, Advanced Photonics, BGPP Topical Meeting, Karlsruhe, 21.-24. Juni},
doi = {10.1364/OFC.2010.OWF8},
faupublication = {yes},
note = {lhft{\_}intern.bib::Sponsel10},
peerreviewed = {Yes},
publisher = {The Optical Society},
title = {{Nonlinear} {Phase} {Noise} {Compensation} {Using} a {Modified} {Nonlinear} {Optical} {Loop} {Mirror}},
year = {2010}
}
@article{faucris.118684104,
abstract = {The performance of a nonlinear amplifying loop mirror as a phase-preserving amplitude 2R regenerator in a differential phase-shift-keying transmission system with nonlinear phase noise as dominant limiting effect has been investigated in a recirculating fiber-loop setup. The experimental results show that cascaded regenerators can efficiently prevent the accumulation of nonlinear phase noise in such systems. It was possible to significantly increase the transmission quality; alternatively, a considerable increase of fiber launch power could be achieved for the same bitor ratio. As a limiting effect, the amplified Rayleigh backscattering in the highly nonlinear fiber is identified when the regenerator is passed multiple times. © 2009 IEEE.},
author = {Stephan, Christian and Sponsel, Klaus and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/LPT.2009.2034539},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
keywords = {2r regeneration; Differential phase-shift keying (DPSK); Nonlinear amplifying loop mirror (NALM); Nonlinear phase noise},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.nonlin},
pages = {1864-1866},
peerreviewed = {Yes},
title = {{Nonlinear} {Phase} {Noise} {Reduction} in a {DPSK} {Transmission} {System} {Using} {Cascaded} {Nonlinear} {Amplifying} {Loop} {Mirrors}},
volume = {21},
year = {2009}
}
@inproceedings{faucris.106102744,
abstract = {The nonlinear amplifying loop mirror as a nonlinear phase-shift compensator for multilevel phase-encoded optical signals is considered. Simulations of a 20 Gb/s DQPSK transmission system showed a significant BER improvement for post-compensation.},
author = {Schmauß, Bernhard and Sponsel, Klaus and Stephan, C. and Onishchukov, Georgy and Leuchs, Gerd},
booktitle = {Conference on Lasers and Electro-Optics CLEO, Paper JThE59, San Jose, May},
doi = {10.1364/CLEO.2010.JThE59},
faupublication = {yes},
isbn = {978-1-55752-890-2},
note = {lhft{\_}intern.bib::Schmauss10a},
peerreviewed = {Yes},
publisher = {The Optical Society},
title = {{Nonlinear} {Phase}-{Shift} {Compensation} by a {Nonlinear} {Amplifying} {Loop} {Mirror}},
year = {2010}
}
@article{faucris.241759209,
abstract = {Photon pairs and heralded single photons, obtained from cavity-assisted parametric down conversion (PDC), play an important role in quantum communications and technology. This motivated a thorough study of the spectral and temporal properties of parametric light, both above the optical parametric oscillator (OPO) threshold, where the semiclassical approach is justified, and deeply below it, where the linear cavity approximation is applicable. The pursuit of a higher two-photon emission rate leads into an interesting intermediate regime, between above OPO threshold and very low pump power, where the OPO still operates considerably below the threshold but the nonlinear cavity phenomena cannot be neglected anymore. Here, we investigate this intermediate regime and show that the spectral and temporal properties of the photon pairs, as well as their emission rate, may significantly differ from the widely accepted linear model. The observed phenomena include frequency pulling and broadening in the temporal correlation for the down-converted optical fields. These factors need to be taken into account when devising practical applications of the high-rate cavity-assisted spontaneous PDC sources.},
author = {Shafiee, Golnoush and Strekalov, Dmitry and Otterpohl, Alexander and Sedlmeir, Florian and Schunk, Gerhard and Vogl, Ulrich and Schwefel, Harald G. L. and Leuchs, Gerd and Marquardt, Christoph},
doi = {10.1088/1367-2630/ab9a87},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team WoS Importer:2020-08-21},
peerreviewed = {Yes},
title = {{Nonlinear} power dependence of the spectral properties of an optical parametric oscillator below threshold in the quantum regime},
volume = {22},
year = {2020}
}
@inproceedings{faucris.276455371,
abstract = {Whispering gallery resonators made from nonlinear crystals offer high quality factors combined with small mode volumes leading to an enhanced effective X
(2) nonlinearity. These properties facilitate studying quantum optical effects in the nonlinear regime with interacting fields differing in frequency by up to four orders of magnitude. Furthermore, the small size results in a large mode spacing allowing for heralded single photon generation in a single mode},
author = {Leuchs, Gerd and Marquardt, Christoph and Schwefel, Harald},
booktitle = {Nonlinear Optics, NLO 2015},
date = {2015-07-26/2015-07-31},
doi = {10.1364/NLO.2015.NW2A.5},
faupublication = {yes},
isbn = {9781557520012},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Nonlinear} {Quantum} {Optics} in a {Millimeter} {Size} {Whispering} {Gallery} {Mode} {Resonator}},
venue = {Kauai, HI, USA},
year = {2015}
}
@inproceedings{faucris.260823978,
abstract = {Nonlinear electro-optical conversion of microwave radiation into the optical telecommunication band is achieved within a crystalline whispering gallery mode resonator, reaching 0.1% photon number conversion efficiency with MHz bandwidth.},
author = {Rueda, Alfredo and Sedlmeir, Florian and Collodo, Michele and Vogl, Ulrich and Stiller, Birgit and Schunk, Gerhard and Strekalov, Dmitry V. and Marquardt, Christoph and Fink, Johannes M. and Painter, Oskar and Leuchs, Gerd and Schwefel, Harald G.L.},
booktitle = {Optics InfoBase Conference Papers},
date = {2016-09-05/2016-09-08},
doi = {10.1364/NP.2016.NTh3A.6},
faupublication = {yes},
isbn = {9781943580170},
note = {CRIS-Team Scopus Importer:2021-06-29},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Nonlinear} single sideband microwave to optical conversion using an electro-optic {WGM}-resonator},
venue = {Sydney},
year = {2016}
}
@article{faucris.121748924,
abstract = {We demonstrate that intensity correlations of second order in the fluorescence light of N > 2 single-photon emitters may violate locality while the visibility of the signal remains below 1/root 2 approximate to 71%. For this, we derive a homogeneous Bell-Wigner-type inequality, which can be applied to a broad class of experimental setups. We trace the violation of this inequality back to path entanglement created by the process of detectio},
author = {Thiel, Christoph and Wiegner, Ralph and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1103/PhysRevA.82.032116},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Nonlocality} from {N} > 2 independent single-photon emitters},
volume = {82},
year = {2010}
}
@inproceedings{faucris.120901704,
author = {Lindlein, Norbert and Pfund, Johannes and Schwider, Johannes},
booktitle = {OSA Technical Digest},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2000.nat.dphy.optik.1optik.nonnul},
pages = {112-114},
title = {{Non}-null testing of aspherical surfaces by using a {Shack}-{Hartmann} sensor},
venue = {Quebec},
year = {2000}
}
@article{faucris.110946704,
abstract = {An optical setup for the testing of rotationally symmetric aspheres without a null optic is proposed. The optical setup is able to transfer the strongly curved wave fronts that stem from the reflection of a spherical testing wave front at a rotationally symmetric asphere. By simulation it is proved that the algorithms of the Shack-Hartmann sensor that is used can cope with the steep wave-front slopes (∼110λ/mm) in the detection plane. The systematic errors of the testing configuration are analyzed and separated. For all types of error, functionals are derived whose significance is proved by simulation. The maximum residual errors in the simulations are fewer than λ/500 (peak to valley). © 2001 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Pfund Johannes, Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.nonnul},
pages = {439-446},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Nonnull} testing of rotationally symmetric aspheres: a systematic error assessment},
volume = {40},
year = {2001}
}
@article{faucris.276473118,
abstract = {We develop a theoretical description for polarizers that goes beyond the paraxial approximation. By combining existing theories for fields with nonplanar wavefronts, we are able to derive a simple power series expansion expressing the electric field of a light beam after a polarizer as a linear function of the field and its spatial derivatives evaluated before the polarizer. The first few terms of such expansion are explicitly given, and their physical meaning is discussed. © 2009 Optical Society of America.},
author = {Aiello, Andrea and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OL.34.003160},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {3160-3162},
peerreviewed = {Yes},
title = {{Nonparaxial} polarizers},
volume = {34},
year = {2009}
}
@inproceedings{faucris.221877883,
abstract = {We report the generation of entangled photon pairs via type-0 spontaneous parametric down conversion in ultra-thin lithium niobate in which momentum between the.},
author = {Okoth, Cameron and Santiago, Tomás and Cavanna, Andrea and Chekhova, Maria},
booktitle = {Optics InfoBase Conference Papers},
date = {2019-05-05/2019-05-10},
doi = {10.1364/CLEO{\_}AT.2019.JTu2A.44},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2019-07-09},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Non}-phase matched spontaneous parametric down conversion in ultra-thin lithium niobate},
venue = {San Jose, CA},
volume = {Part F127-CLEO{\_}AT 2019},
year = {2019}
}
@article{faucris.284492111,
abstract = {Optical nonreciprocity, which breaks the symmetry between forward and backward propagating optical waves, has become vital in photonic systems and enables many key applications. So far, all the existing nonreciprocal systems are implemented for linearly or randomly polarized fundamental modes. Optical vortex modes, with wavefronts that spiral around the central axis of propagation, have been extensively studied over the past decades and offer an additional degree of freedom useful in many applications. Here, we report a light-driven nonreciprocal isolation system for optical vortex modes based on topology-selective stimulated Brillouin scattering (SBS) in chiral photonic crystal fiber. The device can be reconfigured as an amplifier or an isolator by adjusting the frequency of the control signal. The experimental results show vortex isolation of 22 decibels (dB), which is at the state of the art in fundamental mode isolators using SBS. This device may find applications in optical communications, fiber lasers, quantum information processing, and optical tweezers.},
author = {Zeng, Xinglin and Russell, Philip St J. and Wolff, Christian and Frosz, Michael H. and Wong, Gordon K.L. and Stiller, Birgit},
doi = {10.1126/sciadv.abq6064},
faupublication = {yes},
journal = {Science Advances},
note = {CRIS-Team Scopus Importer:2022-11-04},
pages = {eabq6064-},
peerreviewed = {Yes},
title = {{Nonreciprocal} vortex isolator via topology-selective stimulated {Brillouin} scattering},
volume = {8},
year = {2022}
}
@article{faucris.121258544,
abstract = {We propose and experimentally demonstrate an optimal nonunity gain Gaussian scheme for partial measurement of an unknown coherent state that causes minimal disturbance of the state. The information gain and the state disturbance are quantified by the noise added to the measurement outcomes and to the output state, respectively. We derive the optimal trade-off relation between the two noises and we show that the tradeoff is saturated by nonunity gain teleportation. Optimal partial measurement is demonstrated experimentally using a linear optics scheme with feedforward. © 2007 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Sabuncu Metin, Mista Ladislav Jr., Fiurasek Jaromir, Filip R., Leuchs Gerd, Andersen Ulrik L.},
doi = {10.1103/PhysRevA.76.032309},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.nonuni},
pages = {032309},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Nonunity} gain minimal-disturbance measurement},
volume = {76},
year = {2007}
}
@article{faucris.106317024,
author = {Leuchs, Gerd and et al.},
author_hint = {Schneider Jessica, Glöckl O., Leuchs Gerd, Andersen U.L:},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.nonuni},
pages = {2628-2630},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Non}-unity gain quantum nondemolition measurements based on measurement and re-preparation},
volume = {31},
year = {2006}
}
@article{faucris.252088080,
abstract = {Idiopathic forms of Focal Segmental Glomerulosclerosis (FSGS) are caused by circulating permeability factors, which can lead to early recurrence of FSGS and kidney failure after kidney transplantation. In the past three decades, many research endeavors were undertaken to identify these unknown factors. Even though some potential candidates have been recently discussed in the literature, “the” actual factor remains elusive. Therefore, there is an increased demand in FSGS research for the use of novel technologies that allow us to study FSGS from a yet unexplored angle. Here, we report the successful treatment of recurrent FSGS in a patient after living-related kidney transplantation by removal of circulating factors with CytoSorb apheresis. Interestingly, the classical published circulating factors were all in normal range in this patient but early disease recurrence in the transplant kidney and immediate response to CytoSorb apheresis were still suggestive for pathogenic circulating factors. To proof the functional effects of the patient’s serum on podocytes and the glomerular filtration barrier we used a podocyte cell culture model and a proteinuria model in zebrafish to detect pathogenic effects on the podocytes actin cytoskeleton inducing a functional phenotype and podocyte effacement. We then performed Raman spectroscopy in the < 50 kDa serum fraction, on cultured podocytes treated with the FSGS serum and in kidney biopsies of the same patient at the time of transplantation and at the time of disease recurrence. The analysis revealed changes in podocyte metabolome induced by the FSGS serum as well as in focal glomerular and parietal epithelial cell regions in the FSGS biopsy. Several altered Raman spectra were identified in the fractionated serum and metabolome analysis by mass spectrometry detected lipid profiles in the FSGS serum, which were supported by disturbances in the Raman spectra. Our novel innovative analysis reveals changed lipid metabolome profiles associated with idiopathic FSGS that might reflect a new subtype of the disease.},
author = {Müller-Deile, Janina and Sarau, George and Kotb, Ahmed M. and Jaremenko, Christian and Rolle-Kampczyk, Ulrike E. and Daniel, Christoph and Kalkhof, Stefan and Christiansen, Silke H. and Schiffer, Mario},
doi = {10.1038/s41598-021-83883-w},
faupublication = {yes},
journal = {Scientific Reports},
note = {CRIS-Team Scopus Importer:2021-03-19},
peerreviewed = {Yes},
title = {{Novel} diagnostic and therapeutic techniques reveal changed metabolic profiles in recurrent focal segmental glomerulosclerosis},
volume = {11},
year = {2021}
}
@inproceedings{faucris.276472877,
author = {Milanovic, Josip and Lassen, Mikael and Förtsch, Michael and Marquardt, Christoph and Andersen, Ulrik Lund and Leuchs, Gerd},
booktitle = {CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference},
date = {2009-06-14/2009-06-19},
doi = {10.1109/CLEOE-EQEC.2009.5191598},
faupublication = {yes},
isbn = {9781424440801},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Novel} sources for polarisation squeezing and polarisation entanglement using photonic crystal fibres},
venue = {DEU},
year = {2009}
}
@article{faucris.115899344,
abstract = {A fiber optic Mach-Zehnder-interferometer is described, which allows the test of cylindrical microlenses with a high numerical aperture in transmitted light. The interferometer is working in the near infrared and uses diffractive optical elements as null lenses providing a reference cylindrical wave. The setup, the null-optic, the light source and a method to eliminate misalignment aberrations are described in detail and a typical measurement sequence is presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lamprecht Jürgen, Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {VDI-Berichte},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.nullte},
pages = {111-116},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Null}-{Test}-{Measurement} of {Cylindrical} {Microlenses} in {Transmitted} {Light}},
volume = {1694},
year = {2002}
}
@inproceedings{faucris.120769484,
abstract = {An interferometrical measurement method is presented for determining the quality of cylindrical micro lenses with a numerical aperture of up to 0.8 in transmitted light. In order to maximize the achievable accuracy, a null test configuration was chosen. The reference cylindrical waves are shaped by computer generated diffractive optical elements (DOEs), which are made by optical or e-beam lithography. The resulting wave front is analyzed by a fiber optic phase-shifting Mach-Zehnder-interferometer or a Shack-Hartmann wave front sensor. Besides the general setup, which is working in the near infrared (NIR), special aspects will be presented concerning the elimination of misalignment aberrations, the complete filtering of parasitic diffraction orders and the generation of an anamorphic optical transformation for increasing the lateral resolution perpendicular to the cylindrical axis. By means of experimental results the possibilities and accuracy of this technique are discussed.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lamprecht J., Lindlein N., Schwider J.},
booktitle = {Optical Manufacturing and Testing V},
editor = {Philip Stahl H.},
faupublication = {yes},
keywords = {Cylindrical micro lens; Diffractive optics; Null test; Phase shifting interferometry},
pages = {253-260},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Null} test measurement of high-numerical aperture cylindrical micro lenses in transmitted light},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=1842451871&origin=inward},
venue = {San Diego, CA},
volume = {5180},
year = {2003}
}
@inproceedings{faucris.288231337,
abstract = {The generation of entanglement between stationary qubits and propagating photons both enables the study of non-local effects in quantum mechanics and provides a resource for communication between different nodes in a quantum network. Qubit - photon entanglement has so far only been implemented at optical frequencies with single atoms or electron spins. Recent progress in the development of superconducting qubits and in the characterization of propagating microwave fields has also enabled exciting new quantum optics experiments using microwaves. Here, we present experiments in which we prepare and reconstruct the state of non-classical microwave fields by combining novel photon field characterization methods with efficient measurement techniques. We also demonstrate the generation of entangled states between a superconducting qubit and a photon field. Extracting all relevant correlations between the two systems we are able to reconstruct the full density matrix and to verify the entanglement of Bell type states and more complex ones.},
author = {Eichler, Christopher},
date = {2012-06-29},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Observation} of {Entanglement} between a superconducting {Qubit} and an {Itinerant} {Microwave} {Field}},
venue = {Walther Meißner Institut Munich},
year = {2012}
}
@article{faucris.115408084,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Herrmann J. M., Kummer R., Lindner M.},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.observ},
pages = {1087-1089},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Observation} of light propagation in volume scatterers with 10 11-fold slow motion},
volume = {21},
year = {1996}
}
@article{faucris.122553904,
abstract = {Quantum correlations of photon numbers in different spectral components of ultrashort optical solitons have been observed experimentally. These correlations are crucial for the understanding and characterization of the internal quantum structure of soliton pulses and contribute significantly to soliton squeezing by spectral filtering. The accessible information on the nonclassical state of the correlated spectral components is discussed with the example of two modes. The method may be generalized to obtain a complete quantum description of a multimode field.},
author = {Leuchs, Gerd and et al.},
author_hint = {Spälter Stefan, Korolkova Natalia, König Frieder, Sizmann Andreas, Leuchs Gerd},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.observ},
pages = {786-789},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Observation} of multimode quantum correlations in fiber optical solitons},
volume = {81},
year = {1998}
}
@article{faucris.118752084,
author = {Korger, Jan and Aiello, Andrea and Chille, Vanessa and Wittmann, Christoffer and Lindlein, Norbert and Marquardt, Christoph and Leuchs, Gerd},
faupublication = {yes},
journal = {Physical Review Letters},
pages = {113902},
peerreviewed = {Yes},
title = {{Observation} of the {Geometric} {Spin} {Hall} {Effect} of {Light}},
volume = {112(11)},
year = {2014}
}
@article{faucris.297036113,
abstract = {As time flow dictates all evolution, its effective reversal is a topic of active research in a broad range of disciplines, including acoustics, hydrodynamics and optics. This multifarious set of environments is reflected by a great diversity of approaches to observe various echoes of wave functions. Here, we experimentally demonstrate time reversal of a pulse sequence propagating through a photonic mesh lattice realized by two coupled loops of telecommunication fibres. Our system features a symmetric band structure, which allows for almost perfect reversal of its evolution by exchanging the population between two opposing bands. The protocol applied is based on a non-adiabatic and instantaneous exchange of eigenstates resulting in highly efficient time reversal of a pulse chain.},
author = {Wimmer, Martin and Peschel, Ulf},
doi = {10.1038/s41598-018-20577-w},
faupublication = {no},
journal = {Scientific Reports},
note = {CRIS-Team Scopus Importer:2023-04-20},
peerreviewed = {Yes},
title = {{Observation} of {Time} {Reversed} {Light} {Propagation} by an {Exchange} of {Eigenstates}},
volume = {8},
year = {2018}
}
@article{faucris.206310178,
abstract = {The ability to confine and manipulate light below the diffraction limit is a major goal of future multifunctional optoelectronic/plasmonic systems. Here, we demonstrate the design and realization of a tunable and localized electrical source of excitons coupled to surface plasmons based on a polymer light emitting field-effect transistor (LEFET). Gold nanorods that are integrated into the channel support localized surface plasmons and serve as nanoantennas for enhanced electroluminescence. By precise spatial control of the near-infrared emission zone in the LEFET via the applied voltages the near-field coupling between electrically generated excitons and the nanorods can be turned on or off as visualized by a change of electroluminescence intensity. Numerical calculations and spectroscopic measurements corroborate significant local electroluminescence enhancement due to the high local density of photonic states in the vicinity of the gold nanorods. Importantly, the integration of plasmonic nanostructures hardly influences the electrical performance of the LEFETs, thus, highlighting their mutual compatibility in novel active plasmonic devices.},
author = {Zakharko, Yuriy and Held, Martin and Sadafi, Fabrizio-Zagros and Gannott, Florentina and Mandavi, Ali and Peschel, Ulf and Klupp Taylor, Robin and Zaumseil, Jana},
doi = {10.1021/acsphotonics.5b00413},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {surface plasmon polariton;organic semiconductor;field-effect transistor;electroluminescence;Purcell effect;active plasmonics},
month = {Jan},
pages = {1-7},
peerreviewed = {Yes},
title = {{On}-{Demand} {Coupling} of {Electrically} {Generated} {Excitons} with {Surface} {Plasmons} via {Voltage}-{Controlled} {Emission} {Zone} {Position}},
volume = {3},
year = {2016}
}
@article{faucris.261061349,
abstract = {We report on the use of hollow-core photonic crystal fibers to monitor the evolution of chemical reactions. The combination of tight confinement and long interaction length allows single-pass spectroscopic measurements using less than a microliter volume of chemicals with good accuracy. As a proof of principle, we used here nonlinear Raman spectroscopy for a reaction screening of the acidic catalyzed esterification of methanol and acetic acid.},
author = {Schorn, Florian and Aubermann, Manfred and Zeltner, Richard and Haumann, Marco and Joly, Nicolas},
doi = {10.1021/acscatal.1c01264},
faupublication = {yes},
journal = {ACS Catalysis},
keywords = {esterification; hollow-core photonic crystal fibers; in situ spectroscopy; microreactor; Raman},
note = {CRIS-Team Scopus Importer:2021-07-02},
pages = {6709-6714},
peerreviewed = {Yes},
title = {{Online} {Monitoring} of {Microscale} {Liquid}-{Phase} {Catalysis} {Using} in-{Fiber} {Raman} {Spectroscopy}},
volume = {11},
year = {2021}
}
@article{faucris.260661373,
abstract = {Quantum efficiency is a key quantity that describes the performance of light-emitting materials and is, thus, an important metric for assessing novel nanophotonic systems. This Perspective provides a concise discussion of the difficulties encountered in the characterization of quantum efficiencies, especially for studies that involve single emitters. In particular, we review various approaches that have been recently used for determining quantum efficiencies of emitters coupled to plasmonic antennas and highlight the subtleties and challenges that hinder precise measurements.},
author = {Matsuzaki, Korenobu and Liu, Hsuan Wei and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1021/acsphotonics.1c00169},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {antenna; plasmonic; Purcell enhancement; quantum efficiency; quenching; spontaneous emission},
note = {CRIS-Team Scopus Importer:2021-06-25},
peerreviewed = {Yes},
title = {{On} {Quantum} {Efficiency} {Measurements} and {Plasmonic} {Antennas}},
year = {2021}
}
@article{faucris.121255244,
abstract = {A single atom in free space can have a strong influence on a light beam and a single photon can have a strong effect on a single atom in free space. Regarding this interaction, two conceptually different questions can be asked: can a single atom fully absorb a single photon and can a single atom fully reflect a light beam. The conditions for achieving the full effect in either case are different. Here we discuss related questions in the context of an optical resonator. When shaping a laser pulse properly it will be fully absorbed by an optical resonator, i.e., no light will be reflected and all the pulse energy will accumulate inside the resonator before it starts leaking out. We show in detail that in this case the temporal pulse shape has to match the time-reversed pulse obtained by the cavity's free decay. On the other hand a resonator, made of highly reflecting mirrors which normally reflect a large portion of any incident light, may fully transmit the light, as long as the light is narrow band and resonant with the cavity. The analogy is the single atom-normally letting most of the light pass-which under special conditions may fully reflect the incident light beam. Using this analogy we are able to study the effects of practical experimental limitations in the atom-photon coupling, such as finite pulses, bandwidths, and solid angle coverage, and to use the optical resonator as a test bed for the implementation of the quantum experiment. © 2010 Pleiades Publishing, Ltd.},
author = {Heugel, Simon Tobias and Villar, Alessandro and Sondermann, Markus and Peschel, Ulf and Leuchs, Gerd},
doi = {10.1134/S1054660X09170095},
faupublication = {yes},
journal = {Laser Physics},
pages = {100-106},
peerreviewed = {Yes},
title = {{On} the analogy between a single atom and an optical resonator},
volume = {20},
year = {2010}
}
@article{faucris.212757117,
abstract = {We demonstrate an experimental method to separately test the optical response of a single sub-wavelength nano-structure to tailored electric and magnetic field distributions in the optical domain. For this purpose a highly focused y-polarized TEM10-mode is used which exhibits spatially separated longitudinal magnetic and transverse electric field patterns. By displacing a single sub-wavelength nano-structure, namely a single split-ring resonator (SRR), in the focal plane, different coupling scenarios can be achieved. It is shown experimentally that the single split-ring resonator tested here responds dominantly as an electric dipole. A much smaller but yet statistically significant magnetic dipole contribution is also measured by investigating the interaction of a single SRR with a magnetic field component perpendicular to the SRR plane (which is equivalent to the curl of the electric field) as well as by analyzing the intensity and polarization distribution of the scattered light with high spatial resolution. The developed experimental setup as well as the measurement techniques presented in this paper are a versatile tool to investigate the optical properties of single sub-wavelength nano-structures.},
author = {Banzer, Peter and Peschel, Ulf and Quabis, Susanne and Leuchs, Gerd},
doi = {10.1364/OE.18.010905},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-08},
pages = {10905-10923},
peerreviewed = {Yes},
title = {{On} the experimental investigation of the electric and magnetic response of a single nano-structure},
volume = {18},
year = {2010}
}
@article{faucris.230327362,
abstract = {Efficient monitoring of airborne particulate matter (PM), especially particles with aerodynamic diameter less than 2.5 µm (PM2.5), is crucial for improving public health. Reliable information on the concentration, size distribution and chemical characteristics of PMs is key to evaluating air pollution and identifying its sources. Standard methods for PM2.5 characterization require sample collection from the atmosphere and post-analysis using sophisticated equipment in a laboratory environment, and are normally very time-consuming. Although optical methods based on analysis of scattering of free-space laser beams or evanescent fields are in principle suitable for real-time particle counting and sizing, lack of knowledge of the refractive index in these methods not only leads to inevitable sizing ambiguity but also prevents identification of the particle material. In the case of evanescent wave detection, the system lifetime is strongly limited by adhesion of particles to the surfaces. Here we report a novel technique for airborne particle metrology based on hollow-core photonic crystal fibre. It offers in situ particle counting, sizing and refractive index measurement with effectively unlimited device lifetime, and relies on optical forces that automatically capture airborne particles in front of the hollow core and propel them into the fibre. The resulting transmission drop, together with the time-of-flight of the particles passing through the fibre, provide unambiguous mapping of particle size and refractive index with high accuracy. The technique offers unique advantages over currently available real-time particle metrology systems, and can be directly applied to monitoring air pollution in the open atmosphere as well as precise particle characterization in a local environment such as a closed room or a reaction vessel.},
author = {Sharma, Abhinav and Xie, Shangran and Zeltner, Richard and Russell, Philip St. John},
doi = {10.1364/OE.27.034496},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2019-12-10},
pages = {34496-34504},
peerreviewed = {Yes},
title = {{On}-the-fly particle metrology in hollow-core photonic crystal fibre},
volume = {27},
year = {2019}
}
@article{faucris.121760804,
abstract = {We present a physical setup with which it is possible to produce arbitrary symmetric long-lived multiqubit entangled states in the internal ground levels of photon emitters, including the paradigmatic Greenberger-Horne-Zeilinger and W states. In the case of three emitters, where each tripartite entangled state belongs to one of two well-defined entanglement classes, we prove a one-to-one correspondence between well-defined sets of experimental parameters, i.e., locally tunable polarizer orientations, and multiqubit entanglement classes inside the symmetric subspac},
author = {Bastin, T. and Thiel, Christoph and von Zanthier, Joachim and Lamata, Lucas and Solano, E. and Agarwal, G. S.},
doi = {10.1103/PhysRevLett.102.053601},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Operational} {Determination} of {Multiqubit} {Entanglement} {Classes} via {Tuning} of {Local} {Operations}},
volume = {102},
year = {2009}
}
@inproceedings{faucris.229198484,
abstract = {In recent decades large efforts have been made to push optical imaging to the limit, for example for detecting very small proteins. Great achievements have been obtained with fluorescence microscopy, both in terms of localization precision and study of the dynamics of different molecules. Despite the constant improvements, fluorescence-based methods suffer from intrinsic limitations, such as the finite number of emitted photons and photo damage, which limits the temporal resolution and the duration of a measurement. Furthermore, if the molecule of interest is intrinsically non-fluorescent, it has to be labelled with a suitable fluorophore, which in case of biological molecules could interfere with their activity and behavior.},
author = {Nicoli, Francesca and König, Katharina and Dahmardeh, Mahyar and Gemeinhardt, André and Mahmoodabadi, Reza Gholami and Mirzaalian Dastjerdi, Houman and Köstler, Harald and Sandoghdar, Vahid},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872414},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Opportunities} and challenges of single protein detection with {iSCAT}},
venue = {Munich},
year = {2019}
}
@incollection{faucris.122935384,
address = {Boston-Dordrecht-London},
author = {Häusler, Gerd},
booktitle = {Principles of 3D Image Analysis and Synthesis},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2000.nat.dphy.optik.1optik.optica{\_}0},
pages = {1-23},
peerreviewed = {Yes},
publisher = {Kluwer Academic
Publishers},
title = {{Optical} {3D} {Sensors}},
year = {2000}
}
@article{faucris.111798984,
abstract = {In this paper we evaluate experimentally measured signal-to-noise ratio performance of different types of optical amplifiers [V. Josse, M. Sabuncu, N. Cerf, et al., Phys. Rev. Lett. 96 163602 (2006); Z.Y. Ou, S.F. Pereira and H.J. Kimble, Phys. Rev. Lett. 70 3239 (1993)]. We pay particular attention to the low gain regime where the quantum limit of the amplifier varies with gain. Independent of the amplifier type the noise performance is remarkably close to the quantum limit. Low gain optical amplifiers are of interest for quantum communication.},
author = {Andersen, Ulrik Lund and Leuchs, Gerd},
doi = {10.1080/09500340701639599},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.optica},
pages = {2351-2356},
peerreviewed = {Yes},
title = {{Optical} amplification at the quantum limit},
volume = {54},
year = {2007}
}
@article{faucris.108502064,
abstract = {In this article, we present a coupling concept for an interruption-free asymmetric bidirectional optical bus coupler for board and module level. With this approach, it is possible to connect several electro-optical devices to a single waveguide. A core-to-core connection principle is used, where the cores get into physical contact at their side faces. The coupling ratio can be tuned by adjusting the overlap area of the two cores with different contact pressures. Because of a bending in one of the waveguides, it is possible to achieve a specific asymmetric coupler design, where the coupling ratio depends on the coupling direction (bent waveguide to rigid one or vice versa). To derive design rules for prototyping, a simulation is performed using two different independent approaches for cross-checking. With a ray tracing simulation, coupling ratios and energy distribution within the bent core are analyzed. In addition, a simulation with the beam propagation method is used to take wave optical effects into account as well as to establish a holistic view on the coupling concept.},
author = {Lorenz, Lukas and Nieweglowski, Krzysztof and Wolter, Klaus-Jürgen and Loosen, Florian and Lindlein, Norbert and Bock, Karlheinz},
doi = {10.4071/imaps.530},
faupublication = {yes},
journal = {Journal of Microelectronics and Electronic Packaging},
keywords = {Optical bus coupler, asymmetric coupling, planar multimode waveguide, beam propagation method, nonsequential ray tracing},
pages = {1-10},
peerreviewed = {unknown},
title = {{Optical} {Beam} {Propagation} and {Ray} {Tracing} {Simulation} of {Interruption}-{Free} {Asymmetric} {Multimode} {Bus} {Couplers}},
volume = {14},
year = {2017}
}
@article{faucris.109586884,
author = {Häusler, Gerd and et al.},
author_hint = {Ammon Günther, Andretzky P., Bohn G., Herrmann J., Lindner M. W., Häusler Gerd},
faupublication = {yes},
journal = {SPIE j},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.multic},
pages = {?},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Coherence} {Profilometry} ({OCP}) of human skin in vivo},
volume = {3196},
year = {1997}
}
@article{faucris.124131964,
author = {Häusler, Gerd and et al.},
author_hint = {Andretzky P., Lindner M. W., Herrmann J., Schultz A. , Konzog M., Kiesewetter F., Häusler Gerd},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.optica},
pages = {78-87},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Coherence} {Tomography} by 'spectral radar': dynamic range estimation and in vivo measurements of skin},
volume = {3567},
year = {1998}
}
@article{faucris.110859804,
abstract = {`Spectral radar' combines a white light interferometer with a spectrometer. It is an optical sensor for the acquisition of skin morphology based on OCT techniques. The scattering amplitude along one vertical axis from the surface into the bulk can be measured within one exposure. We will discuss some essentials of signal formation and a new method of signal evaluation that significantly reduces artifacts from some source imperfections. We will further demonstrate new measurements.},
author = {Häusler, Gerd and et al.},
author_hint = {Andretzky P., Seraphim Markus C., Kiesewetter F., Häusler Gerd},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.optica{\_}4},
pages = {55-59},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Coherence} {Tomography} by "{Spectral} {Radar}": {Improvement} of {Signal}-to-{Noise} {Ratio}},
volume = {3915},
year = {2000}
}
@article{faucris.243038869,
abstract = {We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric downconversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametric gain, since higher photon fluxes provide lower integration times for obtaining high-quality images. In this way, one can avoid using single-photon detectors or CCD cameras with very high sensitivities, and standard spectrometers can be used instead. Other advantages are higher sensitivity to small loss and amplification before detection so that the detected light power considerably exceeds the probing one.},
author = {MacHado, Gerard J. and Frascella, Gaetano and Torres, Juan P. and Chekhova, Maria},
doi = {10.1063/5.0016259},
faupublication = {yes},
journal = {Applied Physics Letters},
note = {CRIS-Team Scopus Importer:2020-09-25},
peerreviewed = {Yes},
title = {{Optical} coherence tomography with a nonlinear interferometer in the high parametric gain regime},
volume = {117},
year = {2020}
}
@article{faucris.115408964,
abstract = {We present a sensor for acquisition of cross-sectional images of volume scatterers, we call it 'spectral radar'. Medical and technical applications are possible. The sensor is a modified Michelson interferometer, with a broad bandwidth light source. The scattering amplitude a(z) along one vertical axis from the surface into the bulk can be measured within one exposure. No reference arm scanning is necessary. Measurement results of stationary and non stationary scattering phantoms, human skin and of a fish eye in vitro are show},
author = {Häusler, Gerd and et al.},
author_hint = {Bail M., Häusler Gerd, Herrmann J., Ringler R., Lindner M.},
faupublication = {yes},
journal = {SPIE j},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.optica{\_}3},
pages = {298-303},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} coherence tomography with the {Spectral} {Radar}. {Fast} optical analysis in volume scatterers by short coherence interferometry},
volume = {2925},
year = {1996}
}
@article{faucris.212744696,
abstract = {Newton's third law of motion is one of the pillars of classical physics. This fundamental principle states that the forces two bodies exert on each other are equal and opposite. Had the resulting accelerations been oriented in the same direction, this would have instead led to a counterintuitive phenomenon, that of diametric drive. In such a hypothetical arrangement, two interacting particles constantly accelerate each other in the same direction through a violation of the action--reaction symmetry. Although in classical mechanics any realization of this process requires one of the two particles to have a negative mass and hence is strictly forbidden, it could nevertheless be feasible in periodic structures where the effective mass can also attain a negative sign. Here we report the first experimental observation of such diametric drive acceleration for pulses propagating in a nonlinear optical mesh lattice. The demonstrated reversal of action--reaction symmetry could enable altogether new possibilities for frequency conversion and pulse-steering applications.},
author = {Wimmer, Martin and Regensburger, Alois and Bersch, Christoph and Miri, Mohammad-Ali and Batz, Sascha and Onishchukov, Georgy and Christodoulides, Demetrios N. and Peschel, Ulf},
doi = {10.1038/nphys2777},
faupublication = {yes},
journal = {Nature Physics},
note = {EAM Import::2019-03-08},
pages = {780-784},
peerreviewed = {Yes},
title = {{Optical} diametric drive acceleration through action--reaction symmetry breaking},
volume = {9},
year = {2013}
}
@article{faucris.212744419,
abstract = {We experimentally demonstrate the formation and stable propagation of various types of discrete temporal solitons in an optical fiber system. Pulses interacting with a time-periodic potential and defocusing nonlinearity are shown to form gap solitons and nonlinear truncated Bloch waves. Multi-pulse solitons with defects, as well as novel structures composed of a strong soliton riding on a weaker truncated nonlinear Bloch wave are shown to propagate over up to eleven coupling lengths. The nonlinear dynamics of all pulse structures is monitored over the full propagation distance which provides detailed insight into the soliton dynamics.},
author = {Bersch, Christoph and Onishchukov, Georgy and Peschel, Ulf},
doi = {10.1103/PhysRevLett.109.093903},
faupublication = {yes},
journal = {Physical Review Letters},
note = {EAM Import::2019-03-08},
peerreviewed = {Yes},
title = {{Optical} {Gap} solitons and {Truncated} {Nonlinear} {Bloch} {Waves} in {Temporal} {Lattices}},
volume = {109},
year = {2012}
}
@inproceedings{faucris.294159242,
author = {Spasibko, Kirill and Kopylov, Denis A. and Krutyanskiy, Victor L. and Murzina, Tatiana V. and Leuchs, Gerd and Chekhova, Maria},
booktitle = {Optics InfoBase Conference Papers},
date = {2017-06-25/2017-06-29},
faupublication = {yes},
isbn = {9781509067367},
note = {CRIS-Team Scopus Importer:2023-03-27},
peerreviewed = {unknown},
publisher = {Optica Publishing Group (formerly OSA)},
title = {{Optical} harmonic generation from bright squeezed vacuum},
venue = {Munich, DEU},
volume = {Part F81-EQEC 2017},
year = {2017}
}
@article{faucris.107787504,
abstract = {We report on a theoretical and experimental investigation of magneto-absorption in quantum wells (QWs) in the presence of a uniform in-plane electric field. From a simple theoretical model a linear real-space shift of the electron Landau level wave functions relative to the hole counterparts is expected under increasing in-plane electric field. As a result, quadratic Stark shifts, fading of the zero-field allowed transitions, and increasing oscillator strength for the originally forbidden transitions are predicted. These predictions are confirmed by experiments on GaAs/AlGaAs-QWs and found to be in reasonably good agreement with simulations based on a simple model. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.},
author = {Karmakar, Biswajit and Schardt, Michael and Malzer, Stefan and Arora, Brij Mohan and Döhler, Gottfried},
doi = {10.1002/pssc.200673208},
faupublication = {yes},
journal = {Physica Status Solidi (C) Current Topics in Solid State Physics},
pages = {279-287},
peerreviewed = {unknown},
title = {{Optical} {Landau} state mapping with in-plane electric fields},
volume = {4},
year = {2007}
}
@article{faucris.228037252,
abstract = {Arrays of elongated nanoscale structures with suitable optical and mechanical properties can act as probes of numerous physical processes at the nanoscale, with applications in for example high-resolution optical imaging and atomic force microscopy. They can also be used to investigate optomechanical phenomena such as synchronization among large assemblies of mechanical oscillators. Here we report a novel and versatile technique for fabricating two-dimensional light-guiding arrays of mechanically compliant glass nanospikes with lengths up to several hundred μm. The procedure starts with a multicore fiber made by stacking and drawing capillaries and rods of two different germanate glasses with markedly different acid etching rates. After a suitable etching step, a free-standing nanospike array is created at the fiber end-face. The parameters are chosen so that there is evanescent coupling between adjacent nanospikes, which gives rise to strong optomechanical forces that can be exploited to drive and control the mechanical motion of the nanospikes and thus the optical properties.},
author = {Wang, Zheqi and Xie, Shangran and Jiang, Xin and Babic, Fehim and Huang, Jiapeng and Pennetta, Riccardo and Köhler, Johannes and Russell, Philip St. John},
doi = {10.1021/acsphotonics.9b01088},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {Multicore fiber; Nanospike array; Optical forces; Optomechanics; Soft-glass fiber},
note = {CRIS-Team Scopus Importer:2019-10-18},
peerreviewed = {Yes},
title = {{Optically} addressable array of optomechanically compliant glass nanospikes on the endface of a soft-glass photonic crystal fiber},
year = {2019}
}
@inproceedings{faucris.107194384,
abstract = {Here we show that by depositing metallic catalyst nanoparticles in the core of the fibre, we can turn the HC-PCF into a catalytically active microreactor. As a proof-of-principle experiment, we investigated the well-known catalytic hydrogenation of azobenzene in a kagomé HC-PCF, whose core wall has been decorated with rhodium (Rh) catalyst nanoparticles. The reaction was monitored online by in-fibre absorption spectroscopy.},
author = {Cubillas, Ana Maria and Schmidt, Matthias and Euser, Tijmen G. and Etzold, Bastian and Taccardi, Nicola and Unterkofler, Sarah and Wasserscheid, Peter and Russell, Philip St. John},
booktitle = {European Conference on Lasers and Electro-Optics},
doi = {10.1109/CLEOE-IQEC.2013.6801213},
faupublication = {yes},
pages = {1},
peerreviewed = {unknown},
title = {{Optically} {Monitored} {Catalytic} {Photonic} {Crystal} {Fibre} {Microreactor}},
year = {2013}
}
@article{faucris.118327044,
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Schwider Johannes},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.optica},
pages = {264-271},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} measurement methods for refractive microlenses and microlens arrays},
volume = {4455},
year = {2001}
}
@inproceedings{faucris.265513422,
abstract = {A consequence of the Kerr effect in ring microresonators is that light can not always circulate simultaneously in both directions. Instead, under the appropriate conditions of input power and detuning, light can couple into the resonator only in one direction while the other continues on the coupling waveguide [1] - [3]. The two resulting light states, clockwise (CW) and counterclockwise (CCW), can be interpreted as the digital states 1 and 0 as shown in Fig. 1 (c). Microresonators have been theorized to be a suitable solution for on-chip logical processing and switching [4]. Here we present an all-optical bistable device based on the difference of the Kerr effect for co-propagating and counterpropagating light. The device does not require any electrical power, and relies only on a single laser input for its operation. The optical state is set by the dominant input power direction. The system exhibits hysteresis ( Fig. 1 (d) ) hence the optical state is maintained until an significant input in the opposite direction is received. The hysteresis provides resilience to fluctuations in the inputs up to half of the total input power.},
author = {Bino, Leonardo Del and Moroney, Niall and Del'Haye, Pascal},
booktitle = {2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021},
date = {2021-06-21/2021-06-25},
doi = {10.1109/CLEO/Europe-EQEC52157.2021.9542624},
faupublication = {yes},
isbn = {9781665418768},
note = {CRIS-Team Scopus Importer:2021-10-29},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Optical} {Memory} {Based} on {Conterpropagating} {Light} in {Microresonators}},
venue = {Munich},
year = {2021}
}
@inproceedings{faucris.276466431,
author = {Korger, Jan and Aiello, Andrea and Gabriel, Christian and Banzer, Peter and Kolb, Tobias and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2011-05-22/2011-05-26},
faupublication = {yes},
isbn = {9781457705328},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Optical} properties of a tilted polarizer and geometric spin hall effect of light},
venue = {DEU},
year = {2011}
}
@inproceedings{faucris.108257204,
author = {Häusler, Gerd and et al.},
author_hint = {Bail M., Gebhardt B., Häusler Gerd, Herrmann J., Höfer V., Lindner M., Pavlicek P.},
booktitle = {Proc. of the Int. Symp. on Laser Applications in Precision Measurements},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.nat.dphy.optik.1optik.optica},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Range} {Sensing} with spatially modulated {Coherence}},
venue = {Balatonfüred/Hungary},
year = {1996}
}
@article{faucris.116173244,
abstract = {Optical transmission systems made impressive progress in the field of system capacity, reach and flexibility. Beside all improvements achieved so far, signal distortion on the one hand side and noise accumulation on the other hand side are the limitations of optical transmission systems. In terms of signal distortion besides advanced link design strategies optical regenerators are of high interest for signal conditioning along a fiber link. Furthermore the upcoming techniques of advanced modulation formats build a basis for further improvement of transmission quality that ends up with even higher reach, higher robustness against transmission impairments, lower signal to noise requirements etc. In this talk the current status of research in the field of optical signal regenerators suitable for signal regeneration for different modulation formats will be reviewed and presented, where we restrict our analysis to 2R regenerators. The focus will be put on regenerators taking advantage of non linear optical effects in order to improve signal quality. The main challenge is the treatment of phase modulated signals within regenerators. Especially the differential phase shift keying (DPSK) modulation format or the duobinary modulation format are attractive candidates for such kind of regenerators for further improvement of DPSK based transmission systems. The paper will go through several regenerative concepts like non linear optical loop mirror (NOLM) based and cross phase modulation based regenerators in order to figure out their potential for advanced modulation format based systems.},
author = {Schmauß, Bernhard and Striegler, Arne and Meißner, Markus},
doi = {10.1117/12.580086},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {Modulation Format; Optical Transmission; Regeneration},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.optica},
pages = {332-344},
peerreviewed = {unknown},
title = {{Optical} signal {Regeneration} at {Different} {Modulation} {Formats}},
year = {2004}
}
@article{faucris.267185313,
abstract = {We propose a platform that combines the fields of cavity optomagnonics and levitated optomechanics to control and probe the coupled spin-mechanics of magnetic dielectric particles. We theoretically study the dynamics of a levitated Faraday-active dielectric microsphere serving as an optomagnonic cavity, placed in an external magnetic field and driven by an external laser. We find that the optically driven magnetization dynamics induces angular oscillations of the particle with low associated damping. Further, we show that the magnetization and angular motion dynamics can be probed via the power spectrum of the outgoing light. Namely, the characteristic frequencies attributed to the angular oscillations and the spin dynamics are imprinted in the light spectrum by two main resonance peaks. Additionally, we demonstrate that a ferromagnetic resonance setup with an oscillatory perpendicular magnetic field can enhance the resonance peak corresponding to the spin oscillations and induce fast rotations of the particle around its anisotropy axis. (C) 2021 Optical Society of America},
author = {Wachter, Vanessa and Bittencourt, Victor A. S. V. and Xie, Shangran and Sharma, Sanchar and Joly, Nicolas and Russell, Philip St. John and Marquardt, Florian and Viola Kusminskiy, Silvia},
doi = {10.1364/JOSAB.440562},
faupublication = {yes},
journal = {Journal of the Optical Society of America B-Optical Physics},
note = {Created from Fastlane, WoS look-up},
pages = {3858-3871},
peerreviewed = {Yes},
title = {{Optical} signatures of the coupled spin-mechanics of a levitated magnetic microparticle},
volume = {38},
year = {2021}
}
@inproceedings{faucris.227009503,
author = {Backhaus, Carsten and Vögl, Christian and Zeitler, Jochen Tobias and Reitberger, Thomas and Lindlein, Norbert and Franke, Jörg},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference},
doi = {10.1109/cleoe-eqec.2019.8871612},
faupublication = {yes},
keywords = {Polymer waveguides; Polymethyl methacrylate; Refractive index; Roughness; Surfaces; Systems design},
peerreviewed = {Yes},
publisher = {Optical Society of America},
title = {{Optical} simulations of printed {Polymer} {Optical} {Waveguides} ({POWs}): search for their optical limitations caused by fabrication and application geometry},
year = {2019}
}
@article{faucris.109261504,
abstract = {Microlens testing requires in many cases the measurement of surface deviations and the measurement of the wave aberrations of the lens. The lens function is for the multitude of microlenses brought about through curved surfaces of dielectric substrates. Only GRIN lenses rely on the three-dimensional distribution of the refractive index. For the measurement of the surface deviations the Twyman-Green interferometer and for cylinder lenses the grazing incidence test using diffractive beam splitters are best suited. Wave aberrations should be measured in single pass geometry because of systematic errors in case of big aberrations due to double pass arrangements. Therefore, the Mach-Zehnder on the one hand and the shearing interferometer on the other can be recommended for microlens tests. At the time being also wave front sensor as the Shack-Hartmann test are becoming a suitable alternative to the shearing methods because of its simplicity and sufficient sensitivity. A special field is the test of whole lens arrays. This concerns the paraxial as well as the aberration data. Low aperture lens arrays might be illuminated with plane waves indicating the uniformity of the lens data if a whole field is evaluated simultaneously.},
author = {Lindlein, Norbert and et al.},
author_hint = {Schwider J., Lindlein N., Schreiner R., Lamprecht J., Leuchs G., Pfund J., Beyerlein M.},
faupublication = {yes},
journal = {Technisches Messen},
keywords = {Aberrations measurement; Diffractive beam splitters; Interferometry; Microlenses; Wave front sensors},
pages = {467-482},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Testing} of {Refractive} {Microlenses}},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0042377602&origin=inward},
volume = {69},
year = {2002}
}
@incollection{faucris.119539684,
address = {Berlin},
author = {Häusler, Gerd and et al.},
author_hint = {Bail M., Eigensee A., Häusler Gerd, Lindner M.},
booktitle = {3D-Image Analysis and Synthesis},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.1996.nat.dphy.optik.1optik.optica{\_}1},
pages = {9-16},
peerreviewed = {Yes},
publisher = {Infix Verlag},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optical} {Tomography}: {3D}-{Metrology} in {Scattering} {Media}},
year = {1996}
}
@inproceedings{faucris.118078224,
abstract = {Dynamic optical attenuation based on the Raman Effect is investigated experimentally. The suppression of optical power transients as they arise from dynamic processes of EDFAs is shown. © 2008 IEEE.},
author = {Holtmannspötter, Michael and Stephan, C. and Onishchukov, Georgy and Leuchs, Gerd and Schmauß, Bernhard},
booktitle = {ECOC, September},
date = {2008-09-21/2008-09-25},
doi = {10.1109/ECOC.2008.4729117},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2008.tech.IE.LEH.optica{\_}3},
peerreviewed = {Yes},
title = {{Optical} {Transient} {Suppression} using {Stimulated} {Raman} {Attenuation}},
venue = {Brussels},
year = {2008}
}
@article{faucris.108271724,
abstract = {Optical dipole traps are used for trapping and localizing particles in various scientific fields,including classical optics,quantum optics,and biophysics. Here,we propose and implement a dipole trap for nanoparticles that is based on focusing from the full solid angle with a deep parabolic mirror. The key aspect is the generation of a linear-dipole mode,which is predicted to provide a tight trapping potential. We demonstrate the trapping of rod-shaped nanoparticles and validate the trapping frequencies to be of the order of the expected ones. The described realization of an optical trap is applicable for various other kinds of solid-state targets. The obtained results demonstrate the feasibility of optical dipole traps that simultaneously provide high trap stiffness and allow for efficient interaction of light and matter in free space.},
author = {Salakhutdinov, Vsevolod and Sondermann, Markus and Carbone, Luigi and Giacobino, Elisabeth and Bramati, Alberto and Leuchs, Gerd},
doi = {10.1364/OPTICA.3.001181},
faupublication = {yes},
journal = {Optica},
keywords = {(260.5430) Polarization; (270.0270) Quantum optics; (350.4855) Optical tweezers or optical manipulation},
pages = {1181-1186},
peerreviewed = {unknown},
title = {{Optical} trapping of nanoparticles by full solid-angle focusing},
volume = {3},
year = {2016}
}
@article{faucris.212743297,
abstract = {We experimentally study the impact of intrinsic and extrinsic curvature of space on the evolution of light. We show that the topology of a surface matters for radii of curvature comparable with the wavelength, whereas for macroscopically curved surfaces only intrinsic curvature is relevant. On a surface with constant positive Gaussian curvature we observe periodic refocusing, self-imaging, and diffractionless propagation. In contrast, light spreads exponentially on surfaces with constant negative Gaussian curvature. For the first time we realized two beam interference in negatively curved space.},
author = {Schultheiß, Vincent and Batz, Sascha and Szameit, Alexander and Dreisow, Felix and Nolte, Stefan and Tuennermann, Andreas and Longhi, Stefano and Peschel, Ulf},
doi = {10.1103/PhysRevLett.105.143901},
faupublication = {yes},
journal = {Physical Review Letters},
note = {EAM Import::2019-03-08},
peerreviewed = {Yes},
title = {{Optics} in {Curved} {Space}},
volume = {105},
year = {2010}
}
@article{faucris.111000164,
author = {Leuchs, Gerd and Lindlein, Norbert and et al.},
author_hint = {Schwider Johannes, Lindlein Norbert, Schreiner Roland, Lamprecht Jürgen, Leuchs Gerd, Pfund Johannes, Beyerlein Mathias},
faupublication = {yes},
journal = {Technisches Messen},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.optikp},
pages = {467-482},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optikprüfung} von refraktiven {Mikrolinsen}},
volume = {69},
year = {2002}
}
@article{faucris.276447854,
abstract = {Binary coherent state alphabets can be represented in a two-dimensional Hilbert space. We capitalize this formal connection between the otherwise distinct domains of qubits and continuous variable states to map binary phase-shift keyed coherent states onto the Bloch sphere and to derive their quantum-optimal clones. We analyze the Wigner function and the cumulants of the clones, and we conclude that optimal cloning of binary coherent states requires a nonlinearity above second order. We propose several practical and near-optimal cloning schemes and compare their cloning fidelity to the optimal cloner.},
author = {Müller, Christian and Leuchs, Gerd and Marquardt, Christoph and Andersen, U. L.},
doi = {10.1103/PhysRevA.96.042311},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Optimally} cloned binary coherent states},
volume = {96},
year = {2017}
}
@inproceedings{faucris.109262604,
author = {Lindlein, Norbert and et al.},
author_hint = {Sondermann M., Lindlein N., Leuchs G.},
booktitle = {CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference},
doi = {10.1109/CLEOE-EQEC.2009.5192143},
faupublication = {yes},
isbn = {9781424440801},
peerreviewed = {unknown},
publisher = {Optical Society of America},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optimal} spatial mode distributions for the coupling of a single photon to an atomic dipole transition in free space},
venue = {Munich},
year = {2009}
}
@article{faucris.276461525,
abstract = {The most important ability of a quantum channel is to preserve the quantum properties of transmitted quantum states. We experimentally demonstrate a continuous-variable system for efficient benchmarking of quantum channels. We probe the tested quantum channels for a wide range of experimental parameters such as amplitude, phase noise, and channel lengths up to 40 km. The data is analyzed using the framework of effective entanglement. We subsequently are able to deduce an optimal point of operation for each quantum channel with respect to the rate of distributed entanglement. This procedure is a promising candidate for benchmarking quantum nodes and individual links in large quantum networks of different physical implementations. © 2013 American Physical Society.},
author = {Khan, Imran and Wittmann, Christoffer and Jain, Nitin and Killoran, Nathan and Luetkenhaus, Norbert and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevA.88.010302},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Optimal} working points for continuous-variable quantum channels},
volume = {88},
year = {2013}
}
@inproceedings{faucris.121408804,
author = {Arold, Oliver and Bock, Rüdiger and Meier, Jörg and Michelson, Georg and Hornegger, Joachim},
booktitle = {Bildverarbeitung für die Medizin 2008 - Algorithmen, Systeme, Anwendungen},
date = {2008-04-06/2008-04-08},
doi = {10.1007/978-3-540-78640-5{\_}44},
editor = {GMDS BVMI IEEE},
faupublication = {yes},
pages = {217-221},
peerreviewed = {unknown},
title = {{Optimierte} {Segmentierung} der {Papille} in {HRT}-{Retinaaufnahmen}},
url = {http://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2008/Arold08-OSD.pdf},
venue = {Berlin},
year = {2008}
}
@inproceedings{faucris.122183644,
author = {Harder, Irina and Lohse, Olga and Rothau, Sergej and Piaszenski, Guido},
booktitle = {39th International Conference on Micro and Nano Engineering},
date = {2013-09-16/2013-09-19},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Optimised} exposure strategies for artifial waveplates},
venue = {London},
year = {2013}
}
@article{faucris.111800744,
abstract = {We present the numerical optimization of the transmission characteristics of a nonlinear amplifying loop mirror for amplitude regeneration of phase-encoded optical transmission formats. Adjusting the splitting factor, the amplifier gain and the phase bias, minimal phase distortions can be achieved while strong amplitude fluctuations are regenerated. The limiting effects of noise from the built-in amplifier and of amplified Rayleigh backscattering are also discussed. © 2007 IEEE.},
author = {Sponsel, Klaus and Cvecek, Kristian and Stephan, Christian and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1109/LPT.2007.908739},
faupublication = {yes},
journal = {IEEE Photonics Technology Letters},
keywords = {2R-regeneration; All-optical regeneration; Differential phase-shift keying; Nonlinear amplifying loop mirror},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.optimi},
pages = {1858-1860},
peerreviewed = {Yes},
title = {{Optimization} of a nonlinear amplifying loop mirror for amplitude regeneration in phase-shift-keyed transmission},
volume = {19},
year = {2007}
}
@inproceedings{faucris.119707764,
abstract = {The adaptation and optimization of a dispersionimbalance loop mirror for phase-preserving amplitude 2R regeneration is shown by numerical simulations. Its performance has been evaluated for DPSK transmission. A 4.8dB Q-factor improvement has been demonstrated.},
author = {Röthlingshöfer, Tobias and Sponsel, Klaus and Stephan, Christian and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {IEEE/LEOS Winter Topicals Meeting Series},
date = {2009-01-12/2009-01-14},
doi = {10.1109/LEOSWT.2009.4771756},
faupublication = {yes},
isbn = {9781424426119},
note = {UnivIS-Import:2017-12-18:Pub.2009.tech.IE.LEH.optimi},
pages = {258-259},
peerreviewed = {Yes},
title = {{Optimization} of {Dispersion}-{Imbalanced} {Loop} {Mirror} for {Phase}-{Preserving} {Amplitude} {Regeneration}},
venue = {Innsbruck},
year = {2009}
}
@inproceedings{faucris.275308232,
abstract = {The aim of the current study is to improve in a one step process the properties of Ti and Ti alloy surfaces by enhancing their bioactivity in order to provide better conditions for microbial rejection. We propose to alter the biomaterial characteristics by a method alternative to the chemical ones, namely, non-contact processing of the surface by ultra-short laser pulses. The laser-induced modification results in a surface with different topographic features and an increased presence of oxides. We performed hierarchical laser patterning of the surface inducing the formation of areas covered by nanostructures, or laser-induced periodic surface structures (LIPSS), alternating with areas covered by micropillars in their turn surmounted by LIPSS. The increased roughness achieved due to the presence of micropillars, together with a marked presence of oxides, has been proven by several studies to enhance the biocompatibility of the material by improving the surface wettability and, furthermore, promoting the cells adhesion and osseointegration, while reducing the adhesion of pathogens. The laser processed surface, consisting of a pattern of parallel lines, showed improved and anisotropic wettability. The water contact angle value decreased by â1/410° in a direction orthogonal to the lines of the pattern, and by â1/440° in a parallel direction.},
author = {Aceti, D. M. and Daskalova, A. and Angelova, L. and Filipov, E. and Sotelo, Lamborghini and Andreeva, A. and Trifonov, A. and Buchvarov, I.},
booktitle = {Journal of Physics: Conference Series},
date = {2021-09-20/2021-09-24},
doi = {10.1088/1742-6596/2240/1/012040},
editor = {M.C.M. van de Sanden, Miglena Dimitrova, Chavdar Ghelev},
faupublication = {yes},
note = {CRIS-Team Scopus Importer:2022-05-20},
peerreviewed = {unknown},
publisher = {IOP Publishing Ltd},
title = {{Optimization} of titanium and titanium alloy surface properties by ultra-short laser processing for improved antibacterial characteristics},
venue = {Sozopol},
volume = {2240},
year = {2022}
}
@article{faucris.111356564,
abstract = {White light interferometry can be used to measure the shape of rough surfaces. At rough surfaces, the measuring uncertainty in principle cannot be better than the surface roughness, which is commonly in the range of 1 micron. Hence, the requirements for the hard- and software components of the instrument are not as high as for interferometry in the nanometer regime. An analysis of the dominant error sources allows the design of an "optimal" sensor with a measuring uncertainty as small as physically possible, with components as good as necessary and as simple as possible.},
author = {Häusler, Gerd and et al.},
author_hint = {Sarac Z., Groß Reinhard, Richter Claus, Wiesner Bernhard, Häusler Gerd},
faupublication = {yes},
journal = {Optik},
keywords = {Measuring uncertainty; White light interferometry},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.optimi},
pages = {351-357},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optimization} of white light interferometry at rough surfaces by error analysis},
volume = {115},
year = {2004}
}
@article{faucris.266125569,
abstract = {It has been shown that interferometric detection of Rayleigh scattering (iSCAT) can reach an exquisite sensitivity for label-free detection of nano-matter, down to single proteins. The sensitivity of iSCAT detection is intrinsically limited by shot noise, which can be indefinitely improved by employing higher illumination power or longer integration times. In practice, however, a large speckle-like background and technical issues in the experimental setup limit the attainable signal-to-noise ratio. Strategies and algorithms in data analysis are, thus, crucial for extracting quantitative results from weak signals, e.g. regarding the mass (size) of the detected nano-objects or their positions. In this article, we elaborate on some algorithms for processing iSCAT data and identify some key technical as well as conceptual issues that have to be considered when recording and interpreting the data. The discussed methods and analyses are made available in the extensive python-based platform, PiSCAT(6).},
author = {Mirzaalian Dastjerdi, Houman and Dahmardeh, Mahyar and Gemeinhardt, Andre and Mahmoodabadi, Reza Gholami and Köstler, Harald and Sandoghdar, Vahid},
doi = {10.1088/1361-6463/ac2f68},
faupublication = {yes},
journal = {Journal of Physics D: Applied Physics},
note = {CRIS-Team WoS Importer:2021-11-12},
peerreviewed = {Yes},
title = {{Optimized} analysis for sensitive detection and analysis of single proteins via interferometric scattering microscopy},
volume = {55},
year = {2022}
}
@article{faucris.287257224,
abstract = {Bright squeezed light can be generated in optical fibers utilizing the Kerr effect for ultrashort laser pulses. However, pulse propagation in a fiber is subject to nonconservative effects that deteriorate the squeezing. Here, we analyze two-mode polarization squeezing, which is SU(2)-invariant, robust against technical perturbations, and can be generated in a polarization-maintaining fiber. We perform a rigorous numerical optimization of the process and the pulse parameters using our advanced model of quantum pulse evolution in the fiber that includes various nonconservative effects and real fiber data. Numerical results are consistent with experimental results.},
author = {Andrianov, A. V. and Kalinin, Nikolay and Sorokin, A. A. and Anashkina, E. A. and Sánchez-Soto, L. L. and Corney, J. F. and Leuchs, Gerd},
doi = {10.1364/OE.481195},
faupublication = {yes},
journal = {Optics Express},
month = {Jan},
note = {CRIS-Team Scopus Importer:2023-01-06},
pages = {765-773},
peerreviewed = {Yes},
title = {{Optimizing} the generation of polarization squeezed light in nonlinear optical fibers driven by femtosecond pulses},
volume = {31},
year = {2023}
}
@inproceedings{faucris.121662244,
author = {Meißner, Markus and Rösch, Matthias and Korolkova, Natalia and Sizmann, Andreas and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Optical Communication},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2002.nat.dphy.optik.1optik.optimu},
pages = {1-10},
peerreviewed = {Yes},
title = {{Optimum} splitting ratio for amplifier noise reduction by an asymmetric nonlinear optical loop mirror},
venue = {Copenhagen, Denmark},
year = {2002}
}
@article{faucris.111536964,
abstract = {We theoretically and experimentally analyze the influence of the splitting ratio and the input power on the noise reduction capability of an asymmetric nonlinear optical loop mirror (NOLM) for different input noise levels. An easy method to calculate the optimum parameters for noise reduction is also presented. The best noise reduction is found at NOLM input powers at which the nonlinear transfer function has a slope close to zero. Additionally, the splitting ratio of the NOLM has to be adapted to its input noise level to suppress amplitude fluctuations effectively. Since the noise reduction by the NOLM is due to the Kerr nonlinearity, which has a timescale below a few femtoseconds, the noise reduction is applicable to short pulses in the picosecond and femtosecond range. This makes the NOLM applicable as an optical regenerator in an optical data transmission system at high bit rates, such as 160 GBit/s. © Springer-Verlag 2005.},
author = {Meißner, Markus and Rösch, Matthias and Schmauß, Bernhard and Leuchs, Gerd},
doi = {10.1007/s00340-005-1736-2},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.optimu},
pages = {489-495},
peerreviewed = {Yes},
title = {{Optimum} splitting ratio for amplifier noise reduction by an asymmetric nonlinear optical loop mirror},
volume = {80},
year = {2005}
}
@inproceedings{faucris.120454884,
author = {Schmauß, Bernhard and Meißner, Markus and Rösch, Matthias and Leuchs, Gerd},
booktitle = {Applied Physics B, Febr.},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2005.tech.IE.LEH.optimu},
pages = {489-495},
title = {{Optimum} splitting ratio for amplifier noise reduction vy an asymmetric nonlinear optical loop mirror},
volume = {80},
year = {2005}
}
@incollection{faucris.118982644,
address = {Bonn},
author = {Häusler, Gerd and Nkenke, Emeka and et al.},
author_hint = {Maier Tobias, Benz Michaela, Häusler Gerd, Veit K., Neukam F.W., Nkenke Emeka},
booktitle = {Informatik 2005 - Informatik live! (35. Jahrestagung der Ges. für Informatik e.V.)},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2005.nat.dphy.optik.1optik.optisc},
pages = {677},
peerreviewed = {Yes},
publisher = {-},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optische} {3D}-{Messtechnik} in der {Mund}-, {Kiefer}-, {Gesichtschirurgie}},
year = {2005}
}
@inproceedings{faucris.119053484,
address = {München},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Andretzky P., Habermeier H.-P., Karbacher St., Lazlo I., Laboureux Xavier, Schön Nikolaus, Veit Klaus},
booktitle = {Das moderne
Museum - Die Vorträge der MUTEC 99},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.optisc},
pages = {6-14},
peerreviewed = {No},
publisher = {Dr. Müller-Straten},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optische} {3D}-{Sensoren} helfen dem {Restaurator}},
venue = {München},
year = {2001}
}
@article{faucris.112968064,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Herrmann J. M., Stockinger F., Windbichler V.},
faupublication = {yes},
journal = {Info Phys Tech},
note = {UnivIS-Import:2015-03-05:Pub.1995.nat.dphy.optik.1optik.optisc{\_}7},
pages = {15-29},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optische} {3D}-{Sensoren} mit großem {Meßbereich} und hoher {Genauigkeit}},
year = {1995}
}
@article{faucris.118410644,
author = {Häusler, Gerd and et al.},
author_hint = {Blossey S., Häusler Gerd},
faupublication = {yes},
journal = {Technisches Messen},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.ptisch},
pages = {24-26},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optische} {3D}-{Sensoren} und deren industrielle {Anwendung}},
volume = {1},
year = {1996}
}
@book{faucris.121416504,
address = {Renningen},
editor = {Häusler, Gerd and et al.},
faupublication = {yes},
isbn = {3-81 69-1372-5},
note = {UnivIS-Import:2015-05-08:Pub.1997.nat.dphy.optik.1optik.mglich},
peerreviewed = {Yes},
publisher = {Expert-Verlag},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optische} {Messtechnik} an diffus reflektierenden {Medien}},
year = {1997}
}
@article{faucris.110470624,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Herrmann J. M.},
faupublication = {yes},
journal = {F and M; Feinwerktechnik, Mikrotechnik, Messtechnik},
note = {UnivIS-Import:2015-03-05:Pub.1995.nat.dphy.optik.1optik.optisc},
pages = {540-542},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optischer} {Sensor} wacht über {Lasermaterialbearbeitung}},
volume = {103},
year = {1995}
}
@inproceedings{faucris.121547184,
abstract = {Highly efficient holographic optical elements (HOEs) in dichromated gelatin (DGG) have been demonstrated. Several systems and components will be presented: (1) interconnections based on a light guiding glass plate with holographic coupling elements, (2) permutation elements for optoelectronic switching systems, (3) holographic beamsplitters and (4) holographic microlens arrays.},
address = {Stevenage, United Kingdom},
author = {Lindlein, Norbert and et al.},
author_hint = {Kobolla J., Lindlein N., Falkenstorfer O., Resner S., Schmidt J., Schwider J., Strebi N., Voelkel R.},
booktitle = {3rd International Conference on Holographic Systems, Components and Applications},
faupublication = {yes},
pages = {123-126},
publisher = {Publ by IEE},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Optoelectronic} interconnects with holographic optical elements},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0026394021&origin=inward},
venue = {Edinburgh, Scotl},
year = {1991}
}
@article{faucris.212749622,
abstract = {We study the conditions under which a particle, laser-guided in a vertically-oriented hollow-core photonic crystal fiber filled with liquid, can be kept stationary against a microfluidic counter-flow. An immobility parameter---the fluid flow rate required to immobilize a particle against the radiation force produced by unit guided optical power---is introduced to quantify the conditions under which this occurs, including radiation, viscous and gravity forces. Measurements show that this parameter depends strongly on the ratio of particle radius a to core radius R, peaking at an intermediate value of a/R. The results follow fairly well the theoretical estimates of the optical (calculated approximately using a ray optics approach) and numerically simulated drag forces. We suggest that the system has potential applications in, e.g., measurement of the diameter, refractive index and density of particles, synthesis and biomedical research.},
author = {Garbos, M. K. and Euser, T. G. and Russell, Philip St. John},
doi = {10.1364/OE.19.019643},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-08},
pages = {19643-19652},
peerreviewed = {Yes},
title = {{Optofluidic} immobility of particles trapped in liquid-filled hollow-core photonic crystal fiber},
volume = {19},
year = {2011}
}
@article{faucris.212746368,
abstract = {Flow cytometry provides a high throughput, multi-dimensional analysis of cells flowing in suspension. In order to combine this feature with the ability to resolve detailed structures in 3D, we developed an optofluidic device that combines a microfluidic system with a dual beam trap. This allows for the rotation of single cells in a continuous flow, around an axis perpendicular to the imaging plane. The combination of both techniques enables the tomographic reconstruction of the 3D structure of the cell. In addition this method is capable to provide detailed 3D structural data for flow cytometry, as it improves the reconstructed z-resolution of a standard microscopy system to produce images with isotropic resolution in all three axes.},
author = {Kolb, Thorsten and Albert, Sahradha and Haug, Michael and Whyte, Graeme},
doi = {10.1002/jbio.201300196},
faupublication = {yes},
journal = {Journal of Biophotonics},
note = {EAM Import::2019-03-08},
pages = {239-246},
peerreviewed = {unknown},
title = {{Optofluidic} rotation of living cells for single-cell tomography},
volume = {8},
year = {2014}
}
@article{faucris.239265133,
abstract = {Laser cooling of mechanical degrees of freedom is one of the most significant achievements in the field of optomechanics. Here, we report, for the first time to the best of our knowledge, efficient passive optomechanical cooling of the motion of a freestanding waveguide coupled to a whispering-gallery-mode (WGM) resonator. The waveguide is an 8 mm long glass-fiber nanospike, which has a fundamental flexural resonance at Ω/2Π = 2.5 kHz and a Q-factor of 1.2 × 105. Upon launching ∼250 μW laser power at an optical frequency close to the WGM resonant frequency, we observed cooling of the nanospike resonance from room temperature down to 1.8 K. Simultaneous cooling of the first higher-order mechanical mode is also observed. The strong suppression of the overall Brownian motion of the nanospike, observed as an 11.6 dB reduction in its mean square displacement, indicates strong optomechanical stabilization of linear coupling between the nanospike and the cavity mode. The cooling is caused predominantly by a combination of photothermal effects and optical forces between nanospike and WGM resonator. The results are of direct relevance in the many applications of WGM resonators, including atom physics, optomechanics, and sensing.},
author = {Pennetta, Riccardo and Xie, Shangran and Zeltner, Richard and Hammer, Jonas and Russell, Philip St. John},
doi = {10.1364/PRJ.380151},
faupublication = {yes},
journal = {Photonics Research},
note = {CRIS-Team Scopus Importer:2020-06-16},
pages = {844-851},
peerreviewed = {Yes},
title = {{Optomechanical} cooling and self-stabilization of a waveguide coupled to a whispering-gallery-mode resonator},
volume = {8},
year = {2020}
}
@article{faucris.294158505,
abstract = {Light beams with orbital angular momentum (OAM) are convenient carriers of quantum information. They can also be used for imparting rotational motion to particles and providing high resolution in imaging. Due to the conservation of OAM in parametric down-conversion (PDC), signal and idler photons generated at low gain have perfectly anti-correlated OAM values. It is interesting to study the OAM properties of high-gain PDC, where the same OAM modes can be populated with large, but correlated, numbers of photons. Here we investigate the OAM spectrum of high-gain PDC and show that the OAM mode content can be controlled by varying the pump power and the configuration of the source. In our experiment, we use a source consisting of two nonlinear crystals separated by an air gap. We discuss the OAM properties of PDC radiation emitted by this source and suggest possible modifications.},
author = {Beltran, Lina and Frascella, Gaetano and Perez, Angela M. and Fickler, Robert and Sharapova, Polina R. and Manceau, Mathieu and Tikhonova, Olga V. and Boyd, Robert W. and Leuchs, Gerd and Chekhova, Maria V.},
doi = {10.1088/2040-8986/aa600f},
faupublication = {yes},
journal = {Journal of Optics},
keywords = {bright squeezed vacuum; coherent modes; orbital angular momentum; parametric down-conversion; Schmidt modes},
note = {CRIS-Team Scopus Importer:2023-03-27},
peerreviewed = {Yes},
title = {{Orbital} angular momentum modes of high-gain parametric down-conversion},
volume = {19},
year = {2017}
}
@article{faucris.213486771,
abstract = {Spin-orbit interactions in optics traditionally describe an influence of the polarization degree of freedom of light on its spatial properties. The most prominent example is the generation of a spin-dependent optical vortex upon focusing or scattering of a circularly polarized plane wave by a nanoparticle, converting spin to orbital angular momentum of light. Here we present a mechanism of conversion of orbital-to-spin angular momentum of light upon scattering of a linearly polarized vortex beam by a spherical silicon nanoparticle. We show that focused linearly polarized Laguerre-Gaussian beams of first order (l = +1) exhibit an -dependent spatial distribution of helicity density in the focal volume. By using a dipolar scatterer the helicity density can be manipulated locally, while influencing globally the spin and orbital angular momentum of the beam. Specifically, the scattered light can be purely circularly polarized with the handedness depending on the orbital angular momentum of the incident beam. We corroborate our findings with theoretical calculations and an experimental demonstration. Our work sheds light on the global and local properties of helicity conservation laws in electromagnetism.},
author = {Nechayev, Sergey and Eismann, Jörg and Leuchs, Gerd and Banzer, Peter},
doi = {10.1103/PhysRevB.99.075155},
faupublication = {yes},
journal = {Physical Review B},
note = {CRIS-Team WoS Importer:2019-03-15},
peerreviewed = {unknown},
title = {{Orbital}-to-spin angular momentum conversion employing local helicity},
volume = {99},
year = {2019}
}
@article{faucris.307281499,
abstract = {The discovery of room-temperature single-photon emitters (SPEs) hosted by two-dimensional hexagonal boron nitride (2D hBN) has sparked intense research interest. Although emitters in the vicinity of 2 eV have been studied extensively, their microscopic identity has remained elusive. The discussion of this class of SPEs has centered on point defects in the hBN crystal lattice, but none of the candidate defect structures have been able to capture the great heterogeneity in emitter properties that is observed experimentally. Employing a widely used sample preparation protocol but disentangling several confounding factors, we demonstrate conclusively that heterogeneous single-photon emission at ∼2 eV associated with hBN originates from organic molecules, presumably aromatic fluorophores. The appearance of those SPEs depends critically on the presence of organic processing residues during sample preparation, and emitters formed during heat treatment are not located within the hBN crystal as previously thought, but at the hBN/substrate interface. We further demonstrate that the same class of SPEs can be observed in a different 2D insulator, fluorophlogopite mica.},
author = {Neumann, Michael and Wei, Xu and Morales-Inostroza, Luis and Song, Seunghyun and Lee, Sung Gyu and Watanabe, Kenji and Taniguchi, Takashi and Götzinger, Stephan and Lee, Young Hee},
doi = {10.1021/acsnano.3c02348},
faupublication = {yes},
journal = {ACS nano},
keywords = {fluorophlogopite mica; hexagonal boron nitride; organic processing residue; polycyclic aromatic hydrocarbons; single photon emission},
note = {CRIS-Team Scopus Importer:2023-07-07},
peerreviewed = {Yes},
title = {{Organic} {Molecules} as {Origin} of {Visible}-{Range} {Single} {Photon} {Emission} from {Hexagonal} {Boron} {Nitride} and {Mica}},
year = {2023}
}
@article{faucris.258811257,
abstract = {Among the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to considerably increase signal-to-noise ratio in imaging and spectroscopy, and are already used in real-life gravitational-wave detectors. But despite being more robust than other states, they are still very fragile, which narrows the scope of their application. In particular, squeezed states are useless in measurements where the detection is inefficient or the noise is high. Here, we experimentally demonstrate a remedy against loss and noise: strong noiseless amplification before detection. This way, we achieve loss-tolerant operation of an interferometer fed with squeezed and coherent light. With only 50% detection efficiency and with noise exceeding the level of squeezed light more than 50 times, we overcome the shot-noise limit by 6 dB. Sub-shot-noise phase sensitivity survives up to 87% loss. Application of this technique to other types of optical sensing and imaging promises a full use of quantum resources in these fields.},
author = {Frascella, Gaetano and Agne, Sascha and Khalili, Farid Ya. and Chekhova, Maria},
doi = {10.1038/s41534-021-00407-0},
faupublication = {yes},
journal = {npj Quantum Information},
note = {CRIS-Team WoS Importer:2021-05-21},
peerreviewed = {Yes},
title = {{Overcoming} detection loss and noise in squeezing-based optical sensing},
volume = {7},
year = {2021}
}
@inproceedings{faucris.245146443,
abstract = {We report phase sensitivity overcoming the shot-noise limit by 3 dB for a squeezing-assisted interferometer with 50% detection losses. The performance is tolerant to losses up to 87% because of an optical parametric amplifier at the output.},
author = {Frascella, Gaetano and Agne, Sascha and Khalili, Farid Ya and Chekhova, Maria},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}AT.2020.JTh4B.6},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Overcoming} detection losses in a supersensitive interferometer with coherent and squeezed vacuum inputs},
venue = {Washington, DC},
volume = {Part F181-CLEO-AT 2020},
year = {2020}
}
@article{faucris.214901715,
abstract = {Photon-number squeezing and correlations enable measurement of absorption with an accuracy exceeding that of the shot-noise limit. However, sub-shot noise imaging and sensing based on these methods require high detection efficiency, which can he a serious obstacle it measurements are carried out in "difficult" spectral ranges. We show that this problem can he overcome through the phase-sensitive amplification before detection. Here we propose an experimental scheme of sub-shot-noise imaging with tolerance to detection losses. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement},
author = {Knyazev, Eugene and Khalili, Farid Ya and Chekhova, Maria},
doi = {10.1364/OE.27.007868},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team WoS Importer:2019-03-29},
pages = {7868-7885},
peerreviewed = {Yes},
title = {{Overcoming} inefficient detection in sub-shot-noise absorption measurement and imaging},
volume = {27},
year = {2019}
}
@inproceedings{faucris.276457608,
abstract = {Homodyne tomography and heterodyne detection are principal measurement schemes in continuous-variable quantum information and provide different accuracies in determining the quantum state of a system. The former allows for a tomographic reconstruction of the Wigner function of the state, whereas the latter directly samples its Husimi Q-function. We experimentally demonstrate that contrary to a common belief, heterodyne detection outperforms homodyne tomography for almost all Gaussian states.},
author = {Müller, C. R. and Peuntinger, C. and Dirmeier, T. and Khan, I. and Vogl, U. and Marquardt, Christoph and Leuchs, Gerd and Sánchez-Soto, L. L. and Teo, Y. S. and Hradil, Z. and Rehácek, J.},
booktitle = {Optics InfoBase Conference Papers},
date = {2016-10-17/2016-10-21},
doi = {10.1364/FIO.2016.FF3D.3},
faupublication = {yes},
isbn = {9781943580194},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Overcoming} vacuum noise: {The} unforeseen benefits of quantum heterodyne detection},
venue = {Rochester, NY, USA},
year = {2016}
}
@article{faucris.119206604,
abstract = {The visual appearance of the artificial world is largely governed by films or composites containing particles with at least one dimension smaller than a micron. Over the past century and a half, the optical properties of such materials have been scrutinized and a broad range of colorant products, based mostly on empirical microstructural improvements, developed. With the advent of advanced synthetic approaches capable of tailoring particle shape, size and composition on the nanoscale, the question of what is the optimum particle for a certain optical property can no longer be answered solely by experimentation. Instead, new and improved computational approaches are required to invert the structure-function relationship. This progress report reviews the development in our understanding of this relationship and indicates recent examples of how theoretical design is taking an ever increasingly important role in the search for enhanced or multifunctional colorants. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei},
author = {Klupp Taylor, Robin and Seifrt, Frantiek and Zhuromskyy, Oleksandr and Peschel, Ulf and Leugering, Günter and Peukert, Wolfgang},
doi = {10.1002/adma.201100541},
faupublication = {yes},
journal = {Advanced Materials},
keywords = {colloids; core/shell nanoparticles; designed nanostructures; functional coatings; structure-property relationships},
pages = {2554-2570},
peerreviewed = {Yes},
title = {{Painting} by numbers: {Nanoparticle}-based colorants in the post-empirical age},
volume = {23},
year = {2011}
}
@article{faucris.121549384,
abstract = {Optoelectronic interconnections between boards at 1-100 cm distances are proposed, which are based on a typically some 5- 10 mm thick light-guiding plate for confinement and transport of the optical signals with low loss, on the order of 0.1 dB/cm. The plate is equipped with grating couplers fabricated as volume phase holograms in dichromated gelatin with insertion loss as low as 0.5 dB/coupler. The apertures of the optoelectronic transmitters are imaged onto the apertures of the receivers by aspheric field lenses or mirrors mounted on the plate. Such optical systems render packing densities as high as 1000 channel/cm possible that are required for the application of densely packed integrated arrays of semiconductor lasers and detectors. Grating dispersion, axial astigmatism, geometrical distortion and coma are eliminated in the proposed optical setup. Results from ray tracing and an experiment are presented. © 1993.},
author = {Lindlein, Norbert and et al.},
author_hint = {Streibl N., Völkel R., Schwider J., Habel P., Lindlein N.},
doi = {10.1016/0030-4018(93)90073-E},
faupublication = {yes},
journal = {Optics Communications},
pages = {167-171},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Parallel} optoelectronic interconnections with high packing density through a light-guiding plate using grating couplers and field lenses},
volume = {99},
year = {1993}
}
@article{faucris.108488644,
author = {Peng, Gao and Yao, Baoli and Min, Junwei and Harder, Irina and Nercissian, Vanusch and Mantel, Klaus and Guo, Rongli and Zheng, Juanjuan and Ye, Tong},
faupublication = {yes},
journal = {Optics Express},
pages = {1930--1935},
peerreviewed = {Yes},
title = {{Parallel} two-step phase-shifting point-diffraction interferometry for microscopy based on a pair of cube beamsplitters},
volume = {19},
year = {2011}
}
@inproceedings{faucris.288240572,
abstract = {Parity Measurements in Action: Detecting Errors in the Surface Code and Heralding Itinerant Cat States using Superconducting Circuits. Parity measurements distinguish between quantum states with an even and an odd number of excitations without revealing any additional information about the state. Nondestructive parity detection allows one to project onto highly entangled states and therefore plays a central role in quantum error correction. In my talk, I discuss two complementary implementations of parity detection both realized in superconducting circuits. First, we measure the parity of the photon number of propagating radiation fields and thereby herald itinerant Schrödinger cat states [1]. Second, we perform ancilla-based parity detection in multi-qubit systems to implement the smallest viable instance of the surface code capable of detecting any single error [2]. Both experiments crucially rely on recent progress in performing high-fidelity, fast, and qubit-selective readout [3], and highlight the great potential of superconducting circuits for quantum information science. [1] J. - C. Besse, S. Gasparinetti, M. C. Collodo, T. Walter, A. Remm, J. Krause, C. Eichler, and A. Wallraff, arXiv:1912.09896 (2019); J. - C. Besse, S. Gasparinetti, M. C. Collodo, T. Walter, P. Kurpiers, M. Pechal, C. Eichler, and A. Wallraff, Phys. Rev. X 8, 021003 (2018) [2] C. Kraglund Andersen, A. Remm, S. Lazar, S. Krinner, N. Lacroix, G. J. Norris, M. Gabureac, C. Eichler, and A. Wallraff, arXiv:1912.09410 (2019); C. Kraglund Andersen*, A. Remm*, S. Lazar, S. Krinner, J. Heinsoo, J-C. Besse, M. Gabureac, A. Wallraff, and C. Eichler, NPJ Quantum Information 5, 69 (2019) [3] J. Heinsoo, C. Kraglund Andersen, A. Remm, S. Krinner, T. Walter, Y. Salathe, S. Gasparinetti, J-C. Besse, A. Potocnik, A. Wallraff, and C. Eichler, Phys. Rev. Applied 10, 034040 (2018); T. Walter, P. Kurpiers, S. Gasparinetti, P. Magnard, A. Potoćnik, Y. Salathe, M. Pechal, M. Mondal, M. Oppliger, C. Eichler, and A. Wallraff, Phys. Rev. Applied 7, 054020 (2017)},
address = {Erlangen, Germany},
author = {Eichler, Christopher},
booktitle = {MPI for the Science of Light:},
date = {2020-03-18},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Parity} {Measurement} in {Action}: {Detecting} {Errors} in the {Surface} {Code} and {Heralding} itinerant {Cat} {States} using {Superconducting} {Circuits}},
venue = {Erlangen, Germany},
year = {2020}
}
@inproceedings{faucris.288239358,
abstract = {Parity Measurements in Action: Detecting Errors in the Surface Code and Heralding Itinerant Cat States using Superconducting Circuits. Parity measurements distinguish between quantum states with an even and an odd number of excitations without revealing any additional information about the state. Nondestructive parity detection allows one to project onto highly entangled states and therefore plays a central role in quantum error correction. In my talk, I discuss two complementary implementations of parity detection both realized in superconducting circuits. First, we measure the parity of the photon number of propagating radiation fields and thereby herald itinerant Schrödinger cat states [1]. Second, we perform ancilla-based parity detection in multi-qubit systems to implement the smallest viable instance of the surface code capable of detecting any single error [2]. Both experiments crucially rely on recent progress in performing high-fidelity, fast, and qubit-selective readout [3], and highlight the great potential of superconducting circuits for quantum information science. [1] J. - C. Besse, S. Gasparinetti, M. C. Collodo, T. Walter, A. Remm, J. Krause, C. Eichler, and A. Wallraff, arXiv:1912.09896 (2019); J. - C. Besse, S. Gasparinetti, M. C. Collodo, T. Walter, P. Kurpiers, M. Pechal, C. Eichler, and A. Wallraff, Phys. Rev. X 8, 021003 (2018) [2] C. Kraglund Andersen, A. Remm, S. Lazar, S. Krinner, N. Lacroix, G. J. Norris, M. Gabureac, C. Eichler, and A. Wallraff, arXiv:1912.09410 (2019); C. Kraglund Andersen*, A. Remm*, S. Lazar, S. Krinner, J. Heinsoo, J-C. Besse, M. Gabureac, A. Wallraff, and C. Eichler, NPJ Quantum Information 5, 69 (2019) [3] J. Heinsoo, C. Kraglund Andersen, A. Remm, S. Krinner, T. Walter, Y. Salathe, S. Gasparinetti, J-C. Besse, A. Potocnik, A. Wallraff, and C. Eichler, Phys. Rev. Applied 10, 034040 (2018); T. Walter, P. Kurpiers, S. Gasparinetti, P. Magnard, A. Potoćnik, Y. Salathe, M. Pechal, M. Mondal, M. Oppliger, C. Eichler, and A. Wallraff, Phys. Rev. Applied 7, 054020 (2017)},
address = {Erlangen, Germany},
author = {Eichler, Christopher},
booktitle = {MPI for Quantum Optics (MPQ)},
date = {2020-02-04},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Parity} {Measurements} in {Action}: {Detecting} {Errors} in the {Surface} {Code} and {Heralding} itinerant {Cat} {States} using {Superconducting} {Circuits}},
venue = {Munich, Germany},
year = {2020}
}
@article{faucris.212749944,
abstract = {The development of new artificial structures and materials is today one of the major research challenges in optics. In most studies so far, the design of such structures has been based on the judicious manipulation of their refractive index properties. Recently, the prospect of simultaneously using gain and loss was suggested as a new way of achieving optical behaviour that is at present unattainable with standard arrangements. What facilitated these quests is the recently developed notion of `parity--time symmetry' in optical systems, which allows a controlled interplay between gain and loss. Here we report the experimental observation of light transport in large-scale temporal lattices that are parity--time symmetric. In addition, we demonstrate that periodic structures respecting this symmetry can act as unidirectional invisible media when operated near their exceptional points. Our experimental results represent a step in the application of concepts from parity--time symmetry to a new generation of multifunctional optical devices and networks.},
author = {Regensburger, Alois and Bersch, Christoph and Miri, Mohammad-Ali and Onishchukov, Georgy and Christodoulides, Demetrios N. and Peschel, Ulf},
doi = {10.1038/nature11298},
faupublication = {yes},
journal = {Nature},
note = {EAM Import::2019-03-08},
pages = {167-171},
peerreviewed = {Yes},
title = {{Parity}-time synthetic photonic lattices},
volume = {488},
year = {2012}
}
@article{faucris.276452375,
abstract = {We investigate polarization squeezing in squeezed coherent states with varying coherent amplitudes. In contrast to the traditional characterization based on the full Stokes parameters, we experimentally determine the Stokes vector of each excitation subspace separately. Only for states with a fixed photon number do the methods coincide; when the photon number is indefinite, we parse the state in Fock layers, finding that substantially higher squeezing can be observed in some of the single layers. By capitalizing on the properties of the Husimi Q function, we map this notion onto the Poincaré space, providing a full account of the measured squeezing.},
author = {Müller, Christian and Madsen, Lars S. and Klimov, Andrei B. and Sanchez-Soto, Luis L. and Leuchs, Gerd and Marquardt, Christoph and Andersen, Ulrik L.},
doi = {10.1103/PhysRevA.93.033816},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Parsing} polarization squeezing into {Fock} layers},
volume = {93},
year = {2016}
}
@article{faucris.242713199,
abstract = {Extinction of light by material particles stems from losses incurred by absorption or scattering. The extinction cross section is usually treated as an additive quantity, leading to the exponential laws that govern the macroscopic attenuation of light. In this Letter, we demonstrate that the extinction cross section of a large gold nanoparticle can be substantially reduced-i.e., the particle becomes more transparent-if a single molecule is placed in its near field. This partial cloaking effect results from a coherent plasmonic interaction between the molecule and the nanoparticle, whereby each of them acts as a nanoantenna to modify the radiative properties of the other.},
author = {Zirkelbach, Johannes and Gmeiner, Benjamin and Renger, Jan and Tuerschmann, Pierre and Utikal, Tobias and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1103/PhysRevLett.125.103603},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team WoS Importer:2020-09-18},
peerreviewed = {Yes},
title = {{Partial} {Cloaking} of a {Gold} {Particle} by a {Single} {Molecule}},
volume = {125},
year = {2020}
}
@article{faucris.112074204,
abstract = {We propose a scheme for perfect excitation of a single two-level atom by a single photon in free space. The photon state has to match the time reversed photon state originating from spontaneous decay of a two-level system. Here, we discuss its experimental preparation. The state is characterized by a particular asymmetric exponentially shaped temporal profile. Any deviations from this ideal state limit the maximum absorption. Although perfect excitation requires an infinite amount of time, we demonstrate that there is a class of initial one-photon quantum states which can achieve almost perfect absorption even for a finite interaction time. Our results pave the way for realizing perfect coupling between flying and stationary qubits in free space thus opening a possibility for building scalable quantum networks. © EPLA, 2009.},
author = {Leuchs, Gerd and et al.},
author_hint = {Stobinska M., G Alber G., Leuchs Gerd},
doi = {10.1209/0295-5075/86/14007},
faupublication = {yes},
journal = {EPL - Europhysics Letters},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.perfec},
pages = {14007},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Perfect} excitation of a matter qubit by a single photon in free space},
volume = {86},
year = {2009}
}
@article{faucris.108489304,
author = {Mantel, Klaus and Peschel, Ulf and Bachstein, Dustin},
faupublication = {yes},
journal = {Optics Letters},
pages = {199--201},
peerreviewed = {Yes},
title = {{Perfect} imaging of hypersurfaces via transformation optics},
volume = {36},
year = {2011}
}
@inproceedings{faucris.108480944,
author = {Bachstein, Dustin and Mantel, Klaus and Peschel, Ulf},
booktitle = {Proc. 5th EOS Topical Meeting on Advanced Imaging Techniques, ISBN 978-3-00-030503-0},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Perfect} {Imaging} of {Planes} and {Surfaces} via {Transformation} {Optics}},
year = {2010}
}
@inproceedings{faucris.119461144,
abstract = {A star-8QAM regeneration was investigated in numerical simulations for two schemes: a combined NALM with a PSA in the loop and a cascade of PSA and NALM. Significant improvements in error vector magnitude and bit error rate are achieved for both schemes in a transmission system limited by amplified spontaneous emission and nonlinear phase noise.},
author = {Röthlingshöfer, Tobias and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {39th European Conference and Exhibition on Optical Communication (ECOC)},
doi = {10.1049/cp.2013.1338},
faupublication = {yes},
note = {lhft{\_}intern.bib::Roethlingshoefer2013a},
peerreviewed = {Yes},
publisher = {Institution of Engineering and Technology (IET)},
title = {{Performance} analysis of simultaneous multilevel amplitude and phase regeneration},
year = {2013}
}
@article{faucris.263544143,
abstract = {Dielectric spheres of various sizes may sustain electromagnetic whispering-gallery modes resonating at optical frequencies with very narrow linewidths. Arbitrary small deviations from the spherical shape typically shift and broaden such resonances. Our goal is to determine these shifted and broadened resonances. A boundary-condition perturbation theory for the acoustic vibrations of nearly circular membranes was developed by Rayleigh more than a century ago. We extend this theory to describe the electromagnetic excitations of nearly spherical dielectric cavities. This approach permits us to avoid dealing with decaying quasinormal modes. We explicitly find the frequencies and the linewidths of the optical resonances for arbitrarily deformed nearly spherical dielectric cavities, as power series expansions by a small parameter, up to and including second-order terms. We thoroughly discuss the physical conditions for the applicability of perturbation theory.},
author = {Gohsrich, Julius and Shah, Tirth and Aiello, Andrea},
doi = {10.1103/PhysRevA.104.023516},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2021-09-03},
peerreviewed = {Yes},
title = {{Perturbation} theory of nearly spherical dielectric optical resonators},
volume = {104},
year = {2021}
}
@inproceedings{faucris.108448164,
abstract = {The first measurements show very good results and are consistent with the theory. The next step is the study of measurement results made with further combinations of φi and ωi and the investigation of their robustness against stochastic errors or the influence of elliptical polarization. © Springer-Verlag Berlin Heidelberg 2014.},
author = {Rothau, Sergej and Nercissian, Vanusch and Berger, Andreas and Harder, Irina and Mantel, Klaus Peter and Lindlein, Norbert},
booktitle = {7th International Workshop on Advanced Optical Imaging and Metrology, Fringe 2013},
doi = {10.1007/978-3-642-36359-7{\_}53},
faupublication = {yes},
isbn = {9783642363580},
pages = {309-312},
peerreviewed = {unknown},
publisher = {springer berlin},
title = {{Phase} and polarization measurement of a spatially varying linear polarization distribution},
venue = {Nurtingen},
year = {2013}
}
@article{faucris.314598195,
abstract = {We report on a novel phase-locking technique for fiber-based Mach-Zehnder interferometers based on discrete single-photon detections, and demonstrate this in a setup. Our interferometer decodes relative-phase-encoded optical pulse pairs for quantum key distribution applications and requires no locking laser in addition to the weak received signal. Our new simple locking scheme is shown to produce an Ornstein-Uhlenbeck dynamic and achieve optimal phase noise for a given count rate. In case of wavelength drifts that arise during the reception of Doppler-shifted satellite signals, the arm-length difference gets continuously readjusted to keep the interferometer phase stable.},
author = {Hacker, Bastian and Günthner, Kevin and Rößler, Conrad and Marquardt, Christoph},
doi = {10.1088/1367-2630/ad0752},
faupublication = {yes},
journal = {New Journal of Physics},
keywords = {feedback; interferometry; Mach-Zehnder; phase-locking; quantum communication; quantum key distribution; single-photon detection},
note = {CRIS-Team Scopus Importer:2023-12-01},
pages = {113007},
peerreviewed = {Yes},
title = {{Phase}-locking an interferometer with single-photon detections},
volume = {25},
year = {2023}
}
@inproceedings{faucris.245144619,
abstract = {In a soliton fiber laser incorporating three different PCF sections and optomechanically mode-locked at around 1.94 GHz, the three acoustic core resonances are strongly driven, coupled and phase-locked by the sequence of laser pulses.},
author = {Yeh, Dung Han and He, Wenbin and Pang, Meng and Jiang, Xin and Russell, Philip St. John},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}SI.2020.STh3P.3},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Phase}-locking of multiple acoustic resonances by intense optomechanical interactions in a soliton fiber laser},
venue = {Washington, DC},
volume = {Part F183-CLEO-SI 2020},
year = {2020}
}
@inproceedings{faucris.124171564,
author = {Nercissian, Vanusch and Geier, Florian and Berger, Andreas and Rothau, Sergej and Ghadyani, Zahra and Harder, Irina and Mantel, Klaus Peter and Lindlein, Norbert},
booktitle = {DGaO Proceedings},
faupublication = {yes},
title = {{Phase} measurement of a spatially varying polarization distribution},
venue = {Eindhoven NL},
volume = {113},
year = {2012}
}
@article{faucris.111212684,
author = {Häusler, Gerd and et al.},
author_hint = {Seraphim Markus C., Kaminski Jürgen, Häusler Gerd},
faupublication = {yes},
journal = {Proceedings of SPIE},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.phasem},
pages = {366-376},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Phase} {Measuring} {Deflectometry}: a new approuch to measure specular free-form surfaces},
volume = {5458},
year = {2004}
}
@inproceedings{faucris.319223142,
abstract = {We investigated thermal phase-noise in a microstructured fiber. We demonstrate that the microstructure of the fiber establishes a low order acoustic resonator thus suppressing all guided acoustic wave Brillouin scattering modes up to 300 MHz.
with current telecom standards and research in satellite QKD that will make it possible to bridge long distances.
−14τ
−1/
2 with the averaging time τ, limited by the population fluctuations of interrogated atoms. (ii) The frequency stability of the active optical clock reaches σy(τ) = 6.2 × 10
−15τ
−1/
2, which is close to the quantum noise limit. (iii) The mode spacing of the stabilized microcomb has a shot-noise-limited Allan deviation of σy(τ) = 1.9 × 10
−11τ
−1/
2. Our hybrid scheme may be realized using recently developed technologies in (micro)photonics and atomic physics, paving the way towards on-chip optical frequency comparison, synthesis, and synchronization.},
author = {Yu, Deshui and Vollmer, Frank and Del'Haye, Pascal and Zhang, Shougang},
doi = {10.1364/OE.482722},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2023-02-24},
pages = {6228-6240},
peerreviewed = {Yes},
title = {{Proposal} for a hybrid clock system consisting of passive and active optical clocks and a fully stabilized microcomb},
volume = {31},
year = {2023}
}
@article{faucris.120927004,
abstract = {We discuss the possibilities of studying in detail the dynamics of spontaneous emission of a single photon by a single atom and measuring the transient degree of squeezing by means of full solid angle fluorescence detection. © 2009 Elsevier B.V. All rights reserved.},
author = {Stobinska, Magdalena and Sondermann, Markus and Leuchs, Gerd},
doi = {10.1016/j.optcom.2009.10.064},
faupublication = {yes},
journal = {Optics Communications},
keywords = {Resonance fluorescence; Single atom; Single photon; Squeezing},
note = {UnivIS-Import:2015-03-09:Pub.2010.nat.dphy.optik.1optik.prospe},
pages = {737-740},
peerreviewed = {Yes},
title = {{Prospect} for detecting squeezed states of light created by a single atom in free space},
volume = {283},
year = {2010}
}
@article{faucris.245022106,
author = {Sondermann, Markus and Fischer, Martin and Leuchs, Gerd},
doi = {10.1002/qute.202000022},
faupublication = {yes},
journal = {Advanced Quantum Technologies},
keywords = {light-matter interaction, optical trapping, parabolic mirror},
pages = {2000022},
peerreviewed = {Yes},
title = {{Prospects} of {Trapping} {Atoms} with an {Optical} {Dipole} {Trap} in a {Deep} {Parabolic} {Mirror} for {Light}-{Matter}-{Interaction} {Experiments}},
volume = {3},
year = {2020}
}
@article{faucris.218992507,
abstract = {Change history: In the Methods section of this Letter, there were formatting errors to the equations of motion using the Heisenberg picture; see accompanying Amendment for further details. This has been corrected online.},
author = {Rueda, Alfredo and Sedlmeir, Florian and Kumari, Madhuri and Leuchs, Gerd and Schwefel, Harald G.L.},
doi = {10.1038/s41586-019-1220-5},
faupublication = {yes},
journal = {Nature},
note = {CRIS-Team Scopus Importer:2019-05-28},
peerreviewed = {Yes},
title = {{Publisher} {Correction}: {Resonant} electro-optic frequency comb ({Nature}, (2019), 568, 7752, (378-381), 10.1038/s41586-019-1110-x)},
year = {2019}
}
@article{faucris.242704271,
abstract = {We report the efficient generation of high-gain parametric down-conversion, including pump depletion, with pump powers as low as 100 µW (energies 0.1 µJ/pulse) and conversion efficiencies up to 33%. In our simple configuration, the pump beam is tightly focused into a bulk periodically poled lithium niobate crystal placed in free space. We also observe a change in the photon number statistics for both the pump and down-converted beams as the pump power increases to reach the depleted pump regime. The experimental results are a clear signature of the interplay between the pump and the down-converted beams in highly efficient parametric down-conversion sources.},
author = {Florez, Jefferson and Lundeen, Jeff S. and Chekhova, Maria},
doi = {10.1364/OL.394925},
faupublication = {yes},
journal = {Optics Letters},
note = {CRIS-Team Scopus Importer:2020-09-18},
pages = {4264-4267},
peerreviewed = {Yes},
title = {{Pump} depletion in parametric down-conversion with low pump energies},
volume = {45},
year = {2020}
}
@inproceedings{faucris.276458825,
abstract = {We present a quantum receiver for the discrimination of quadrature phase-shiftkeyed signals that approaches the Helstrom bound for any signal power. The discrimination isperformed via adaptive displacements prior to a single photon detector. © 2014 Optical Society of America.},
author = {Muller, Christian R. and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2014-06-08/2014-06-13},
doi = {10.1364/cleo{\_}qels.2014.fm3a.6},
faupublication = {yes},
isbn = {9781557529992},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{QPSK} receiver outperforming the standard quantum limit for any signal power},
venue = {USA},
year = {2014}
}
@article{faucris.112074424,
abstract = {The measurement of an arbitrary quadrature of a bright quantum state of light is a commonly requested action in many quantum information protocols, but it is experimentally challenging with previously proposed schemes. We suggest that the quadrature be measured at a specific sideband frequency of a bright quantum state by transferring the sideband modes under interrogation to a vacuum state and subsequently measuring the quadrature via homodyne detection. The scheme is implemented experimentally, and it is successfully tested with a bright squeezed state of light. © 2009 Optical Society of America.},
author = {Leuchs, Gerd and et al.},
author_hint = {Schneider Jessica, Glockl O., Leuchs Gerd, Andersen Ulrik L.},
doi = {10.1364/OL.34.001186},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.quadra},
pages = {1186-1188},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quadrature} measurements of a bright squeezed state via sideband swapping},
volume = {34},
year = {2009}
}
@article{faucris.276464233,
abstract = {We propose and experimentally demonstrate a near-optimal discrimination scheme for the quadrature phase shift keying (QPSK) protocol. We show in theory that the performance of our hybrid scheme is superior to the standard scheme-heterodyne detection-for all signal amplitudes and underpin the predictions with our experimental results. Furthermore, our scheme provides hitherto the best performance in the domain of highly attenuated signals. The discrimination is composed of a quadrature measurement, a conditional displacement and a threshold detector. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.},
author = {Müller, Christian and Usuga, M. A. and Wittmann, Christoffer and Takeoka, M. and Marquardt, Christoph and Andersen, U. L. and Leuchs, Gerd},
doi = {10.1088/1367-2630/14/8/083009},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Quadrature} phase shift keying coherent state discrimination via a hybrid receiver},
volume = {14},
year = {2012}
}
@misc{faucris.290123832,
author = {Eichler, Christopher},
faupublication = {yes},
keywords = {wwwquantum},
peerreviewed = {automatic},
title = {{Quantencomputer} heute und in {Zukunft}},
year = {2022}
}
@misc{faucris.295166851,
author = {Eichler, Christopher},
faupublication = {yes},
peerreviewed = {automatic},
title = {{Quantencomputer}: {Von} {Schrödingers} {Katze} zu {Hochleistungsrechnern} der {Zukunft}.},
url = {https://nacht-der-wissenschaften.de/},
year = {2023}
}
@article{faucris.109677964,
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Sizmann A.},
faupublication = {yes},
journal = {Design & Elektronik},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.quante},
pages = {75-78},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantenrauschberuhigtes} {Licht}},
year = {2000}
}
@article{faucris.213088086,
abstract = {We demonstrate a quantitative broadband fiber sensor based on evanescent-field sensing in the cladding holes of an air-suspended solid-core photonic crystal fiber. We discuss the fabrication process, together with the structural and optical characterization of a range of different fibers. Measured mode profiles are in good agreement with finite element method calculations made without free parameters. The fraction of the light in the hollow cladding can be tuned via the core diameter of the fiber. Dispersion measurements are in excellent agreement with theory and demonstrate tuning of the zero dispersion wavelength via the core diameter. Optimum design parameters for absorption sensors are discussed using a general parameter diagram. From our analysis, we estimate that a sensitivity increase of three orders of magnitude is feasible compared to standard cuvette measurements. Our study applies to both liquid and gas fiber sensors. We demonstrate the applicability of our results to liquid chemical sensing by measuring the broad absorption peak of an aqueous NiCl2 solution. We find excellent agreement with the reference spectrum measured in a standard cuvette, even though the sample volume has decreased by three orders of magnitude. Our results demonstrate that air-suspended solid-core photonic crystal fibers can be used in quantitative broadband chemical-sensing measurements.},
author = {Euser, Tijmen and Chen, J. S. Y. and Scharrer, Michael and Russell, Philip St. John and Farrer, N. J. and Sadler, P. J.},
doi = {10.1063/1.2924408},
faupublication = {yes},
journal = {Journal of Applied Physics},
note = {EAM Import::2019-03-12},
peerreviewed = {Yes},
title = {{Quantitative} broadband chemical sensing in air-suspended solid-core fibers},
volume = {103},
year = {2008}
}
@article{faucris.276448611,
abstract = {Quantum communication offers long-term security especially, but not only, relevant to government and industrial users. It is worth noting that, for the first time in the history of cryptographic encoding, we are currently in the situation that secure communication can be based on the fundamental laws of physics (information theoretical security) rather than on algorithmic security relying on the complexity of algorithms, which is periodically endangered as standard computer technology advances. On a fundamental level, the security of quantum key distribution (QKD) relies on the non-orthogonality of the quantum states used. So even coherent states are well suited for this task, the quantum states that largely describe the light generated by laser systems. Depending on whether one uses detectors resolving single or multiple photon states or detectors measuring the field quadratures, one speaks of, respectively, a discrete- or a continuous-variable description. Continuous-variable QKD with coherent states uses a technology that is very similar to the one employed in classical coherent communication systems, the backbone of today's Internet connections. Here, we review recent developments in this field in two connected regimes: (i) improving QKD equipment by implementing front-end telecom devices and (ii) research into satellite QKD for bridging long distances by building upon existing optical satellite links.},
author = {Khan, Imran and Elser, Dominique and Dirmeier, Thomas and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1098/rsta.2016.0235},
faupublication = {yes},
journal = {Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences},
keywords = {Coherent states; Continuous variables; Quantum communication},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Quantum} communication with coherent states of light},
volume = {375},
year = {2017}
}
@inproceedings{faucris.120909184,
address = {Wien},
author = {Leuchs, Gerd and et al.},
author_hint = {Korolkova Natalia, Leuchs Gerd, Silberhorn Ch., Weiß O.},
booktitle = {Proc. of the 15th European Meeting on Cybernetics and Systems Research},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2000.nat.dphy.optik.1optik.quantu},
pages = {153},
peerreviewed = {No},
publisher = {Austrian Society for Cybernetics Studies},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Communication} with continuous variables using multi-photonstates of light},
venue = {Vienna},
volume = {1},
year = {2000}
}
@article{faucris.216318527,
abstract = {In this review we discuss intriguing properties of apparently classical optical fields, that go beyond purely classical context and allow us to speak about quantum characteristics of such fields and about their applications in quantum technologies. We briefly define the genuinely quantum concepts of entanglement and steering. We then move to the boarder line between classical and quantum world introducing quantum discord, a more general concept of quantum coherence, and finally a controversial notion of classical entanglement. To unveil the quantum aspects of often classically perceived systems, we focus more in detail on quantum discordant correlations between the light modes and on nonseparability properties of optical vector fields leading to entanglement between different degrees of freedom of a single beam. To illustrate the aptitude of different types of correlated systems to act as quantum or quantum-like resource, entanglement activation from discord, high-precision measurements with classical entanglement and quantum information tasks using intra-system correlations are discussed. The common themes behind the versatile quantum properties of seemingly classical light are coherence, polarization and inter and intra-mode quantum correlations.},
author = {Korolkova, N. and Leuchs, Gerd},
doi = {10.1088/1361-6633/ab0c6b},
faupublication = {yes},
journal = {Reports on Progress in Physics},
note = {CRIS-Team WoS Importer:2019-04-23},
peerreviewed = {Yes},
title = {{Quantum} correlations in separable multi-mode states and in classically entangled light},
volume = {82},
year = {2019}
}
@inproceedings{faucris.117981204,
abstract = {A scheme for the generation of bright entangled beams is discussed. The Einstein-Podolsky-Rosen (EPR) quantum correlations are produced by letting two amplitude-squeezed bright optical fields interfere on a 50:50 beamsplitter. This is illustrated in the phase space representation in a single-mode picture. The phase and amplitude uncertainty measurements exhibit strong correlations and anticorrelations which can be detected by recording the difference of the photocurrents.},
author = {Leuchs, Gerd and et al.},
author_hint = {Silberhorn Christine, Korolkova Natalia, Leuchs Gerd},
booktitle = {IQEC'2000 Conference Digest},
date = {2000-09-10/2000-09-15},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2000.nat.dphy.optik.1optik.quantu{\_}2},
pages = {8-},
peerreviewed = {No},
publisher = {IEEE},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} cryptography with bright entangled beams},
venue = {Nice},
volume = {QMB6},
year = {2000}
}
@article{faucris.276445864,
abstract = {Quantum communication has been successfully implemented in optical fibres and through free-space. Fibre systems, though capable of fast key and low error rates, are impractical in communicating with destinations without an established fibre link. Free-space quantum channels can overcome such limitations and reach long distances with the advent of satellite-to-ground links. However, turbulence, resulting from local fluctuations in refractive index, becomes a major challenge by adding errors and losses. Recently, an interest in investigating the possibility of underwater quantum channels has arisen. Here, we investigate the effect of turbulence on an underwater quantum channel using twisted photons in outdoor conditions. We study the effect of turbulence on transmitted error rates, and compare different quantum cryptographic protocols in an underwater quantum channel, showing the feasibility of high-dimensional encoding schemes. Our work may open the way for secure high-dimensional quantum communication between submersibles, and provides important input for potential submersibles-to-satellite quantum communication.},
author = {Bouchard, Frederic and Sit, Alicia and Hufnagel, Felix and Abbas, Aazad and Zhang, Yingwen and Heshami, Khabat and Fickler, Robert and Marquardt, Christoph and Leuchs, Gerd and Boyd, Robert W. and Karimi, Ebrahim},
doi = {10.1364/OE.26.022563},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {22563-22573},
peerreviewed = {Yes},
title = {{Quantum} cryptography with twisted photons through an outdoor underwater channel},
volume = {26},
year = {2018}
}
@inproceedings{faucris.276465469,
abstract = {The quantization of the light field is important for understanding some aspects of optical fiber systems: the quantum limit of amplifiers, the dynamics of solitons below shot noise and the appearance of non-classical light. © OSA/OFC/NFOEC 2011.},
author = {Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2011-03-06/2011-03-10},
faupublication = {yes},
isbn = {9781557529060},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Quantum} effects in optical fibers},
venue = {USA},
year = {2011}
}
@article{faucris.307860412,
abstract = {We measure the quantum efficiency (QE) of individual dibenzoterrylene (DBT) molecules embedded in p-dichlorobenzene at cryogenic temperatures. To achieve this, we combine two distinct methods based on the maximal photon emission and on the power required to saturate the zero-phonon line to compensate for uncertainties in some key system parameters. We find that the outcomes of the two approaches are in good agreement for reasonable values of the parameters involved, reporting a large fraction of molecules with QE values above 50%, with some exceeding 70%. Furthermore, we observe no correlation between the observed lower bound on the QE and the lifetime of the molecule, suggesting that most of the molecules have a QE exceeding the established lower bound. This confirms the suitability of DBT for quantum optics experiments. In light of previous reports of low QE values at ambient conditions, our results hint at the possibility of a strong temperature dependence of the QE.},
author = {Musavinezhad, Mohammad and Shkarin, Alexey and Rattenbacher, Dominik and Renger, Jan and Utikal, Tobias and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1021/acs.jpcb.3c01755},
faupublication = {yes},
journal = {Journal of Physical Chemistry B},
note = {CRIS-Team Scopus Importer:2023-07-21},
pages = {5353-5359},
peerreviewed = {Yes},
title = {{Quantum} {Efficiency} of {Single} {Dibenzoterrylene} {Molecules} in p-{Dichlorobenzene} at {Cryogenic} {Temperatures}},
volume = {127},
year = {2023}
}
@incollection{faucris.118982864,
address = {Weinheim},
author = {Leuchs, Gerd and Korolkova, Natalia and Glöckl, Oliver and Lorenz, Stefan and Heersink, Joel and Silberhorn, Christine and Marquardt, Christoph and Andersen, Ulrik L.},
booktitle = {Quantum Information Processing: Schwerpunktprogramm 1078 der Deutschen Forschungsgemeinschaft},
doi = {10.1002/3527606009.ch32},
edition = {2},
faupublication = {yes},
isbn = {9783527405411},
keywords = {Bright entangled beams; Entanglement of bright beams; Entanglement swapping; Non-separability; Polarization variables; Quantum correlations; Quantum fiber solitons; Quantum information processing; Sub-shot-noise phase quadrature measurements on intense beams},
note = {UnivIS-Import:2015-04-20:Pub.2005.nat.dphy.optik.1optik.quantu{\_}4},
pages = {428-445},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
title = {{Quantum} fiber solitons - generation, entanglement and detection},
year = {2005}
}
@inproceedings{faucris.296612900,
abstract = {The properties of the vacuum are described by quantum physics including the response to external fields such as electromagnetic radiation. Of the two parameters that govern the details of the electromagnetic field dynamics in vacuum, one is fixed by the requirement of Lorentz invariance . The other one, and its relation to the quantum vacuum, is discussed in this contribution. Deriving ϵ
0 from the properties of the quantum vacuum implies the derivation of the fine structure constant.},
author = {Leuchs, Gerd and Hawton, Margaret and Sanchez-Soto, Luis L.},
booktitle = {Journal of Physics: Conference Series},
date = {2016-08-22/2016-08-28},
doi = {10.1088/1742-6596/793/1/012017},
faupublication = {yes},
note = {CRIS-Team Scopus Importer:2023-04-20},
peerreviewed = {unknown},
publisher = {Institute of Physics Publishing},
title = {{Quantum} field theory and classical optics: {Determining} the fine structure constant},
venue = {Novosibirsk, RUS},
volume = {793},
year = {2017}
}
@article{faucris.111900404,
abstract = {We propose and experimentally demonstrate nondestructive and noiseless removal (filtering) of vacuum states from an arbitrary set of coherent states of continuous variable systems. Errors, i.e., vacuum states in the quantum information are diagnosed through a weak measurement, and on that basis, probabilistically filtered out. We consider three different filters based on on-off detection, phase stabilized, and phase randomized homodyne detection. We find that on-off detection, optimal in the ideal theoretical setting, is superior to the homodyne strategy also in a practical setting. © 2008 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Wittmann Christoffer, Elser Dominique, Andersen Ulrik L, Filip R., Marek P., Leuchs Gerd},
doi = {10.1103/PhysRevA.78.032315},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2008.nat.dphy.optik.1optik.quantu},
pages = {032315},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} filtering of optical coherent states},
volume = {78},
year = {2008}
}
@inproceedings{faucris.260826488,
abstract = {We experimentally demonstrate successful Trojan-horse attacks on laboratory and commercial continuous-variable quantum key distribution systems with binary and Gaussian modulation. Furthermore, we analyze appropriate countermeasures regarding their spectral performance.},
author = {Stiller, Birgit and Khan, Imran and Jain, Nitin and Jouguet, P. and Kunz-Jacques, S. and Diamanti, E. and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Conference on Lasers and Electro-Optics Europe - Technical Digest},
date = {2015-05-10/2015-05-15},
faupublication = {yes},
isbn = {9781557529688},
keywords = {Optical pulses; Optical refraction; Optical variables control; Phase modulation; Protocols; Security},
note = {CRIS-Team Scopus Importer:2021-06-29},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Quantum} hacking of continuous-variable quantum key distribution systems: {Realtime} {Trojan}-horse attacks},
venue = {San Jose, CA},
volume = {2015-August},
year = {2015}
}
@article{faucris.106823464,
abstract = {The advent of accelerator-driven free-electron lasers (FEL) has opened new avenues for high-resolution structure determination via diffraction methods that go far beyond conventional X-ray crystallography methods(1-10). These techniques rely on coherent scattering processes that require the maintenance of first-order coherence of the radiation field throughout the imaging procedure. Here we show that higher-order degrees of coherence, displayed in the intensity correlations of incoherently scattered X-rays from an FEL, can be used to image two-dimensional objects with a spatial resolution close to or even below the Abbe limit. This constitutes a new approach towards structure determination based on incoherent processes(11,12), including fluorescence emission or wavefront distortions, generally considered detrimental for imaging applications. Our method is an extension of the landmark intensity correlation measurements of Hanbury Brown and Twiss(13) to higher than second order, paving the way towards determination of structure and dynamics of matter in regimes where coherent imaging methods have intrinsic limitations(14).},
author = {Schneider, Raimund and Mehringer, Thomas and Mercurio, Giuseppe and Wenthaus, Lukas and Classen, Anton and Brenner, Gunter and Gorobtsov, Oleg and Benz, Adrian and Bhatti, Daniel and Bocklage, Lars and Fischer, Birgit and Lazarev, Sergey and Obukhov, Yuri and Schlage, Kai and Skopintsev, Petr and Wagner, Jochen and Waldmann, Felix and Willing, Svenja and Zaluzhnyy, Ivan and Wurth, Wilfried and Vartanyants, Ivan A. and Rohlsberger, Ralf and von Zanthier, Joachim},
doi = {10.1038/NPHYS4301},
faupublication = {yes},
journal = {Nature Physics},
pages = {126-129},
peerreviewed = {Yes},
title = {{Quantum} imaging with incoherently scattered light from a free-electron laser},
volume = {14},
year = {2018}
}
@article{faucris.121764544,
abstract = {We propose a technique to obtain subwavelength resolution in quantum imaging with potentially 100% contrast using incoherent light. Our method requires neither path-entangled number states nor multiphoton absorption. The scheme makes use of N photons spontaneously emitted by N atoms and registered by N detectors. It is shown that for coincident detection at particular detector positions a resolution of lambda/N can be achieve},
author = {Thiel, Christoph and Bastin, Thierry and Martin, J and Solano, Enrique and von Zanthier, Joachim and Agarwal, Girish S.},
doi = {10.1103/PhysRevLett.99.133603},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Quantum} imaging with incoherent photons},
volume = {99},
year = {2007}
}
@incollection{faucris.243053998,
author = {Bruss, Dagmar and Leuchs, Gerd},
booktitle = {Quantum Information: From Foundations to Quantum Technology Applications},
editor = {Dagmar Bruss, Gerd Leuchs},
faupublication = {yes},
isbn = {978-3-527-80579-2},
note = {CRIS-Team WoS Importer:2020-09-25},
pages = {XVII-XVII},
peerreviewed = {unknown},
title = {{Quantum} {Information} {From} {Foundations} to {Quantum} {Technology} {Applications} {Preface} to the {New} {Edition}},
year = {2019}
}
@article{faucris.121374484,
abstract = {We present an excerpt of the document "Quantum Information Processing and Communication: Strategic report on current status, visions and goals for research in Europe", which has been recently published in electronic form at the website of FET (the Future and Emerging Technologies Unit of the Directorate General Information Society of the European Commission, http://www.cordis.lu/ist/fet/qipc-sr.htm). This document has been elaborated, following a former suggestion by FET, by a committee of QIPC scientists to provide input towards the European Commission for the preparation of the Seventh Framework Program. Besides being a document addressed to policy makers and funding agencies (both at the European and national level), the document contains a detailed scientific assessment of the state-of-the-art, main research goals, challenges, strengths, weaknesses, visions and perspectives of all the most relevant QIPC sub-fields, that we report here. Dedicated to the memory of Prof. Th. Beth, one of the pioneers of QIPC, whose contributions have had a significant scientific impact on the development as well as on the visibility of a field that he enthusiastically helped to shape since its early days. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2005.},
author = {Leuchs, Gerd and et al.},
author_hint = {Zoller P., Beth Th., Binosi D., Blatt R., Briegel H., Bruss D., Calarco T., CiracJ.I., Deutsch D., Eisert J., Ekert A., Fabre C., Gisin N., Grangiere P., Grass M., Haroche S., Imamoglu A., Karlson A., Kempe J., Kouwenhoven L., Krö S., Leuchs Gerd, Lewenstein M., Loss D., Lütkenhaus Norbert, Massar S., Mooij J.E., Plenio M.B., Polzik E., Popescu S., Rempe G., Sergienko A., Suter D., Twamley J., Wending G., Werner R., Winter A., Wrachtrup J., Zeilinger A.},
doi = {10.1140/epjd/e2005-00251-1},
faupublication = {yes},
journal = {European Physical Journal D},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.quantu{\_}2},
pages = {203-228},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} information processing and communication, {Strategic} report on current status, visions and goals for research in {Europe}},
volume = {36},
year = {2005}
}
@book{faucris.123805264,
address = {Weinheim},
author = {Leuchs, Gerd and et al.},
author_hint = {Beth T., Leuchs Gerd},
faupublication = {yes},
note = {UnivIS-Import:2015-04-02:Pub.2003.nat.dphy.optik.1optik.quantu{\_}6},
peerreviewed = {Yes},
publisher = {Wiley-VCH},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Information} {Processing}},
year = {2003}
}
@book{faucris.122876204,
address = {Weinheim},
editor = {Leuchs, Gerd and et al.},
faupublication = {yes},
note = {UnivIS-Import:2015-05-08:Pub.2003.nat.dphy.optik.1optik.quantu{\_}7},
peerreviewed = {Yes},
publisher = {Wiley-VCH},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Information} {Processing}},
year = {2003}
}
@book{faucris.120553224,
address = {Weinheim},
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Beth Thomas},
edition = {2},
faupublication = {yes},
note = {UnivIS-Import:2015-04-02:Pub.2005.nat.dphy.optik.1optik.quantu},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH &Co KGaA},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Information} {Processing}: {Schwerpunktprogramm} 1078 der {Deutschen} {Forschungsgemeinschaft}},
year = {2005}
}
@book{faucris.123751364,
address = {Weinheim},
edition = {2},
editor = {Leuchs, Gerd and et al.},
faupublication = {yes},
note = {UnivIS-Import:2015-05-08:Pub.2005.nat.dphy.optik.1optik.quantu{\_}0},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Information} {Processing}: {Schwerpunktprogramm} 1078 der {Deutschen} {Forschungsgemeinschaft}},
year = {2005}
}
@inproceedings{faucris.288238855,
address = {University of Montpellier, France},
author = {Eichler, Christopher},
booktitle = {GDR IQFA - 9th Colloquium},
date = {2018-11-01},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Quantum} {Information} {Processing} with {Superconducting} {Circuits}},
venue = {University of Montpellier, France},
year = {2018}
}
@book{faucris.121095964,
address = {London},
author = {Leuchs, Gerd and et al.},
author_hint = {Cerf N.J., Leuchs Gerd, Polzik E.S.},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-02:Pub.2007.nat.dphy.optik.1optik.quantu},
peerreviewed = {Yes},
publisher = {Imperial College Press},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} {Information} with {Continuous} {Variables} of {Atoms} and {Light}},
year = {2007}
}
@article{faucris.116522384,
abstract = {We discuss the possibility of quantum interferences and entanglement of photons that exist at different intervals of time, i.e., one photon being recorded before the other has been created. The corresponding two-photon correlation function is shown to violate Bell's inequalities. (c) 2011 Optical Society of America},
author = {Wiegner, Ralph and Thiel, Christoph and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1364/OL.36.001512},
faupublication = {yes},
journal = {Optics Letters},
pages = {1512-1514},
peerreviewed = {Yes},
title = {{Quantum} interference and entanglement of photons that do not overlap in time},
volume = {36},
year = {2011}
}
@article{faucris.121751564,
abstract = {We quantitatively investigate the non-classicality and non-locality of a whole new class of mixed disparate quantum and semiquantum photon sources at the quantum-classical boundary. The latter include photon-added thermal and photon-added coherent sources, experimentally investigated recently by Zavatta et al (2009 Phys. Rev. Lett. 103 140406). The key quantity in our investigations is the visibility of the corresponding photon-photon correlation function. We present explicit results on the violations of the Cauchy-Schwarz inequality-which is a measure of non-classicality-as well as of Bell-type inequalitie},
author = {Wiegner, Ralph and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1088/0953-4075/44/5/055501},
faupublication = {yes},
journal = {Journal of Physics B-Atomic Molecular and Optical Physics},
peerreviewed = {Yes},
title = {{Quantum} interference and non-locality of independent photons from disparate sources},
volume = {44},
year = {2011}
}
@article{faucris.121735064,
abstract = {We calculate the radiative characteristics of emission from a system of entangled atoms which can have a relative distance larger than the emission wavelength. We develop a quantum multipath interference approach which explains both super-and subradiance though the entangled states have zero dipole moment. We derive a formula for the radiated intensity in terms of different interfering pathways. We further show how the interferences lead to directional emission from atoms prepared in symmetric W states. As a byproduct of our work we show how Dicke's classic result can be understood in terms of interfering pathways. In contrast to the previous works on ensembles of atoms, we focus on finite numbers of atoms prepared in well characterized state},
author = {Wiegner, Ralph and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1103/PhysRevA.84.023805},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Quantum}-interference-initiated superradiant and subradiant emission from entangled atoms},
volume = {84},
year = {2011}
}
@incollection{faucris.122521564,
address = {Weinheim},
author = {Leuchs, Gerd and et al.},
author_hint = {Glöckl O., Andersen U.L., Leuchs Gerd},
booktitle = {Lectures on Quantum Information},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2006.nat.dphy.optik.1optik.quantu},
pages = {575-589},
peerreviewed = {Yes},
publisher = {Wiley-VCH Verlag GmbH & Co KGaA},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} interferometry},
year = {2006}
}
@inproceedings{faucris.107310984,
address = {New York},
author = {Leuchs, Gerd and et al.},
author_hint = {Korolkova Natalia, Silberhorn Ch., Glöckl Oliver, König F., Leuchs Gerd},
booktitle = {Proceedings of the 8th Rochester Conference on Coherence and Quantum Optics},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2002.nat.dphy.optik.1optik.uantum},
pages = {?},
peerreviewed = {No},
publisher = {Plenum Press},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} interferometry with fiber solitons - a direct experimental test of non-separability},
year = {2002}
}
@incollection{faucris.243056445,
author = {Andersen, Ulrik L. and Gloeckl, Oliver and Gehring, Tobias and Leuchs, Gerd},
booktitle = {Quantum Information: From Foundations to Quantum Technology Applications},
doi = {10.1002/9783527805785.ch35},
editor = {Dagmar Bruß, Gerd Leuchs},
faupublication = {yes},
isbn = {9783527413539},
month = {Jan},
note = {CRIS-Team WoS Importer:2020-09-25},
pages = {779-798},
peerreviewed = {unknown},
title = {{Quantum} {Interferometry} with {Gaussian} {States}},
year = {2019}
}
@article{faucris.120155244,
abstract = {For intense optical pulses the optical Kerr interaction in matter such as an optical fiber is large enough to generate quantum states of light with significant non-classical properties. On this basis pairs of entangled light pulses have been generated. This entanglement can be used for novel schemes in high precision interferometry and for quantum communication protocols such as quantum dense coding.},
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Silberhorn Christine, Glöckl Oliver, Marquardt Christoph, Korolkova Natalia},
faupublication = {yes},
journal = {Fortschritte Der Physik-Progress of Physics},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.quantu},
pages = {409-413},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Quantum} interferometry with intense optical pulses},
volume = {51},
year = {2003}
}
@article{faucris.319227739,
abstract = {For intense optical pulses the optical Kerr interaction in matter such as an optical fiber is large enough to generate quantum states of light with significant non-classical properties. On this basis pairs of entangled light pulses have been generated. This entanglement can be used for novel schemes in high precision interferometry and for quantum communication protocols such as quantum dense coding.
The ability to perform logical quantum operations fault-tolerantly by correcting unavoidable errors induced by control inaccuracies and decoherence, will be essential for building and operating large-scale quantum computers. In my talk, I present our recent demonstration of repeated quantum error correction using a surface code, which is known for it exceptionally high error threshold and its compatibility with planar qubit architectures featuring nearest-neighbor coupling. The code implemented in our experiments uses 17 physical qubits, nine of of which encode the logical information and eight of which perform repeated measurements of error syndromes. By decoding the syndrome data in post-processing we preserve initialized logical states with a low error probability of 3% per cycle. The demonstration of repeated, fast and high-performance quantum error correction supports our understanding that fault-tolerant quantum computation will eventually be realizable.
[1] S. Krinner, N. Lacroix, A. Remm, A. Di Paolo, E. Genois, C. Leroux, C. Hellings, S. Lazar, F. Swiadek, J. Herrmann, G. J. Norris, C K. Andersen, M. Müller, A. Blais, C. Eichler, and A. Wallraff, arxiv.org:2112.03708 (2021)
},
address = {Manchester, UK},
author = {Eichler, Christopher},
booktitle = {IST Austria : Vienna, Austria},
date = {2022-05-09},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Repeated} {Quantum} {Error} {Correction} in a {Surface} {Code} {Using} {Superconducting} {Circuits}},
venue = {IST Austria : Vienna, Austria},
year = {2022}
}
@inproceedings{faucris.288241872,
address = {University of Tokyo, Japan},
author = {Eichler, Christopher},
booktitle = {Physics Frontiers with Quantum Science and Technology},
date = {2022-02-10},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Repeated} {Quantum} {Error} {Correction} in a {Surface} {Code} {Using} {Superconducting} {Circuits}},
url = {https://indico.cern.ch/event/1105352/},
venue = {University of Tokyo, Japan},
year = {2022}
}
@inproceedings{faucris.288244888,
abstract = {The ability to perform logical quantum operations fault-tolerantly by correcting unavoidable errors induced by control inaccuracies and decoherence, will be essential for building and operating large-scale quantum computers. In my talk, I present our recent demonstration of repeated quantum error correction using a surface code, which is known for it exceptionally high error threshold and its compatibility with planar qubit architectures featuring nearest-neighbor coupling. The code implemented in our experiments uses 17 physical qubits, nine of of which encode the logical information and eight of which perform repeated measurements of error syndromes. By decoding the syndrome data in post-processing we preserve initialized logical states with a low error probability of 3% per cycle. The demonstration of repeated, fast and high-performance quantum error correction supports our understanding that fault-tolerant quantum computation will eventually be realizable.},
address = {Manchester, UK},
author = {Eichler, Christopher},
booktitle = {CMD 29, Superconducting Circuits for Quantum Technologies},
date = {2022-08-22},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Repeated} {Quantum} {Error} {Correction} in a {Surface} {Code} {Using} {Superconducting} {Circuits}},
venue = {Manchester, UK},
year = {2022}
}
@inproceedings{faucris.288240868,
abstract = {The ability to perform logical quantum operations fault-tolerantly by correcting unavoidable errors induced by control inaccuracies and decoherence, will be essential for building and operating large-scale quantum computers. In my talk, I present our recent demonstration of repeated quantum error correction using a surface code [1], which is known for it exceptionally high error threshold and its compatibility with planar qubit architectures featuring nearest-neighbor coupling. The code implemented in our experiments uses 17 physical qubits, nine of of which encode the logical information and eight of which perform repeatedmeasurements of error syndromes. By decoding the syndrome data in post-processing we preserve initialized logical states with a low error probability of 3% per cycle. The demonstration of repeated, fast and high-performance quantum error correction supports our understanding that fault-tolerant quantum computation will eventually be realizable.
[1] S. Krinner, N. Lacroix, A. Remm, A. Di Paolo, E. Genois, C. Leroux, C. Hellings, S. Lazar, F. Swiadek, J. Herrmann, G. J. Norris, C K. Andersen, M. Müller, A. Blais, C. Eichler, and A. Wallraff, arxiv.org:2112.03708 (202},
address = {University of Tokyo, Japan},
author = {Eichler, Christopher},
booktitle = {Walter-Meissner-Institut},
date = {2022-04-11},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Repeated} {Quantum} {Error} {Correction} in a {Surface} {Code} {Using} {Superconducting} {Circuits}},
venue = {Munich, Germany},
year = {2022}
}
@article{faucris.213232484,
abstract = {Transformation of broadband emission of oxygen defects in the carcass of ZnO-inverted opal into a multiple-mode amplified spontaneous emission band has been observed in the spectral interval of a photonic bandgap upon increasing excitation intensity. The mode structure has been assigned to amplification of emission coupled to resonance modes of the self-selected distributed Bragg resonator. The surprisingly low 2 W/cm$^2$ onset of amplification has been explained by the long radiative decay time of defect states populated according to the three-level excitation scheme. The decrease of emission intensity between amplified peaks has been associated with the saturation of the ZnO defect emission.},
author = {Khunsin, Worawut and Scharrer, Michael and Aagesen, Larry K. and Anderson, Mark A. and Chang, Robert P. H. and Sotomayor Torres, Clivia M. and Romanov, Sergei G.},
doi = {10.1364/OL.34.001519},
faupublication = {yes},
journal = {Optics Letters},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Resonance} amplification of defect emission in {ZnO}-inverted opal},
volume = {34},
year = {2009}
}
@article{faucris.216807722,
abstract = {High-speed optical telecommunication is enabled by wavelength-division multiplexing, whereby hundreds of individually stabilized lasers encode information within a single-mode optical fibre. Higher bandwidths require higher total optical power, but the power sent into the fibre is limited by optical nonlinearities within the fibre, and energy consumption by the light sources starts to become a substantial cost factor
1
. Optical frequency combs have been suggested to remedy this problem by generating numerous discrete, equidistant laser lines within a monolithic device; however, at present their stability and coherence allow them to operate only within small parameter ranges
2–4
. Here we show that a broadband frequency comb realized through the electro-optic effect within a high-quality whispering-gallery-mode resonator can operate at low microwave and optical powers. Unlike the usual third-order Kerr nonlinear optical frequency combs, our combs rely on the second-order nonlinear effect, which is much more efficient. Our result uses a fixed microwave signal that is mixed with an optical-pump signal to generate a coherent frequency comb with a precisely determined carrier separation. The resonant enhancement enables us to work with microwave powers that are three orders of magnitude lower than those in commercially available devices. We emphasize the practical relevance of our results to high rates of data communication. To circumvent the limitations imposed by nonlinear effects in optical communication fibres, one has to solve two problems: to provide a compact and fully integrated, yet high-quality and coherent, frequency comb generator; and to calculate nonlinear signal propagation in real time
5
. We report a solution to the first problem.},
author = {Rueda, Alfredo and Sedlmeir, Florian and Kumari, Madhuri and Leuchs, Gerd and Schwefel, Harald G. L.},
doi = {10.1038/s41586-019-1110-x},
faupublication = {yes},
journal = {Nature},
note = {CRIS-Team Scopus Importer:2019-05-02},
pages = {378-381},
peerreviewed = {Yes},
title = {{Resonant} electro-optic frequency comb},
volume = {568},
year = {2019}
}
@inproceedings{faucris.234643366,
abstract = {We demonstrate electro-optic frequency comb generation using a doubly resonant system comprising a whispering gallery mode disk resonator made of lithium niobate mounted inside a three dimensional copper cavity. We observe 180 sidebands centred at 1550 nm.},
author = {Rueda, Alfredo and Sedlmeir, Florian and Leuchs, Gerd and Kumari, Madhuri and Schwefel, Harald},
booktitle = {Optics InfoBase Conference Papers},
date = {2019-07-15/2017-07-19},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-02-21},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Resonant} electro-optic frequency comb generation in lithium niobate disk resonator inside a microwave cavity},
venue = {Waikoloa Beach, HI},
volume = {Part F134-NLO 2019},
year = {2019}
}
@article{faucris.213232159,
abstract = {The transmission through ultra-thin metal films is noticeable and thus limits their potential for the formation of lithographic masks. By sub-wavelength patterning of a metal film with a post structure, a resonant metamaterial is formed, which can effectively suppress the transmission. Measurements as well as calculations identify the width of the metal islands as a critical geometrical feature. Hence, the extraordinarily low transmission effect can be explained by the resonant response of single scatterers known as Localized Surface Plasmon Resonances (LSPR). A potential application of this suppressed transmission effect to thin metal masks in optical lithography is experimentally investigated.},
author = {Dobmann, Sabine and Shyroki, Dzmitry and Banzer, Peter and Erdmann, Andreas and Peschel, Ulf},
doi = {10.1364/OE.20.019928},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Resonant} metamaterials for contrast enhancement in optical lithography},
volume = {20},
year = {2012}
}
@article{faucris.281404921,
abstract = {Quantum state engineering, the cornerstone of quantum photonic technologies, mainly relies on spontaneous parametric downconversion and four-wave mixing, where one or two pump photons spontaneously decay into a photon pair. Both of these nonlinear effects require momentum conservation for the participating photons, which strongly limits the versatility of the resulting quantum states. Nonlinear metasurfaces have subwavelength thickness and allow the relaxation of this constraint; when combined with resonances, they greatly expand the possibilities of quantum state engineering. Here, we generated entangled photons via spontaneous parametric downconversion in semiconductor metasurfaces with high-quality factor, quasi-bound state in the continuum resonances. By enhancing the quantum vacuum field, our metasurfaces boost the emission of nondegenerate entangled photons within multiple narrow resonance bands and over a wide spectral range. A single resonance or several resonances in the same sample, pumped at multiple wavelengths, can generate multifrequency quantum states, including cluster states. These features reveal metasurfaces as versatile sources of complex states for quantum information.},
author = {Santiago Cruz, Tomás and Gennaro, Sylvain D. and Mitrofanov, Oleg and Addamane, Sadhvikas and Reno, John and Brener, Igal and Chekhova, Maria},
doi = {10.1126/science.abq8684},
faupublication = {yes},
journal = {Science},
note = {CRIS-Team Scopus Importer:2022-09-09},
pages = {991-995},
peerreviewed = {Yes},
title = {{Resonant} metasurfaces for generating complex quantum states},
volume = {377},
year = {2022}
}
@article{faucris.108272824,
abstract = {We demonstrate the controlled creation of a Yb ion by photo-ionizing Yb with weak continuous-wave lasers at ultraviolet wavelengths. The photo-ionization is performed by resonantly exciting transitions of the Yb ion in three steps. Starting from an ion crystal of two laser-cooled Yb ions localized in a radio-frequency trap, the verification of the ionization process is performed by characterizing the properties of the resulting mixed-species ion-crystal. The obtained results facilitate fundamental studies of physics involving Yb ions.},
author = {Heugel, Simon Tobias and Fischer, Martin and Elman, Vladimir and Maiwald, Robert and Sondermann, Markus and Leuchs, Gerd},
doi = {10.1088/0953-4075/49/1/015002},
faupublication = {yes},
journal = {Journal of Physics B: Atomic, Molecular and Optical Physics},
keywords = {light-matter interaction; photo-ionization; ytterbium},
peerreviewed = {unknown},
title = {{Resonant} photo-ionization of {Yb}+ to {Yb2}+},
volume = {49},
year = {2016}
}
@inproceedings{faucris.108737904,
address = {Esslingen},
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Karbacher St., Ritter D.},
booktitle = {Optische 3D-Erfassung großer Objekte},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.nat.dphy.optik.1optik.revers},
pages = {?},
peerreviewed = {No},
publisher = {Technische Akademie Esslingen},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Reverse} {Engineering} mit {Hilfe} optischer {3D}-{Sensoren}},
venue = {Esslingen},
year = {1996}
}
@article{faucris.120869144,
abstract = {Optical 3D sensors are used as tools for reverse engineering: First the shape of an object is digitized by acquisition of multiple range images from different view points. Then the range images are registered and the data is turned into a CAD description, e.g. tensor product surfaces, by surface modeling software. For many applications however it is sufficient to generate a polyhedral surface. We present a nearly automatic procedure covering the complete task of data acquisition, calibration, surface registration and surface reconstruction using a mesh of triangles. A couple of measurements, such as teeth, works of art and cutting tools are shown.},
author = {Häusler, Gerd and et al.},
author_hint = {Schönfeld H., Karbacher St., Häusler Gerd},
doi = {10.1117/12.302444},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {3D sensing; Calibration; Optical 3D sensor; Registration; Reverse engineering; Surface reconstruction; Triangulation},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.revers},
pages = {115-125},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Reverse} engineering using optical {3D} sensors},
volume = {3313},
year = {1998}
}
@incollection{faucris.122941764,
address = {Boston},
author = {Häusler, Gerd and et al.},
author_hint = {Karbacher St., Häusler Gerd, Schönfeld H.},
booktitle = {Handbook of Computer Vision and Applications Vol. 3: Systems and Applications},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.1999.nat.dphy.optik.1optik.revers},
pages = {359-380},
peerreviewed = {Yes},
publisher = {Academic Press},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Reverse} {Engineering} using {Optical} {Range} {Sensors}},
volume = {3},
year = {1999}
}
@inproceedings{faucris.109270744,
abstract = {We analytically analyse the magnetic response of ring shaped molecules. We find that circular symmetry must be broken and that transitions between higher order states have to be enabled to ob-tain a reasonable magnetic response. © 2006 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Brechtefeld F., Lindlein N., Leuchs G., Peschel U.},
booktitle = {Photonic Metamaterials: From Random to Periodic, META 2006},
faupublication = {yes},
isbn = {9781557528087},
publisher = {Optical Society of America},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Ring}-shaped molecules as split ring resonators of a molecular metamaterial},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84899089125&origin=inward},
venue = {Grand Bahama Island},
year = {2006}
}
@article{faucris.260826733,
abstract = {An eavesdropper Eve may probe a quantum key distribution (QKD) system by sending a bright pulse from the quantum channel into the system and analyzing the back-reflected pulses. Such Trojan-horse attacks can breach the security of the QKD system, if appropriate safeguards are not installed or if they can be fooled by the Eve. We present a risk analysis of such attacks based on extensive spectral measurements, such as transmittance, reflectivity, and detection sensitivity of some critical components used in a typical QKD systems. Our results indicate the existence of wavelength regimes, where the attacker gains considerable advantage as compared to launching an attack at 1550 nm. We also propose countermeasures to reduce the risk of such attacks.},
author = {Jain, Nitin and Stiller, Birgit and Khan, Imran and Makarov, Vadim and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1109/JSTQE.2014.2365585},
faupublication = {yes},
journal = {IEEE Journal of Selected Topics in Quantum Electronics},
keywords = {Electrooptic modulators; Fiber optics; Infrared detectors; Infrared spectra; Optical pulses; Optical receivers; Photodetectors; Quantum cryptography; Quantum key distribution; Reflectometry; Supercontinuum; Transmittance; Trojan-horse attack},
note = {CRIS-Team Scopus Importer:2021-06-29},
pages = {168-177},
peerreviewed = {Yes},
title = {{Risk} analysis of {Trojan}-horse attacks on practical quantum key distribution systems},
volume = {21},
year = {2015}
}
@article{faucris.226997241,
abstract = {State-of-the-art ultrafast mid-IR fiber lasers deliver optical solitons with durations of several hundred femtoseconds. The Er- or Ho-doped fluoride gain fibers generally used in these lasers have strong anomalous dispersion at ∼3 µm, which generally forces them to operate in the soliton regime. Here we report that a pulse-energy clamping effect, caused by the buildup of intracavity nonlinearities, limits the shortest obtainable pulse durations in these mid-infrared soliton fiber lasers. Excessive intra-cavity energy results in soliton instability, collapse and fragmentation into a variety of stable multi-pulse states, including phase-locked soliton molecules and harmonically mode-locked states. We report that the spectral evolution of the mid-IR laser pulses can be recorded between roundtrips through stretching their second-harmonic signal in a 25-km-length of single-mode fiber. Using a modified dispersive Fourier transform set-up, we were able to perform for the first time spectro-temporal measurements of mid-IR laser pulses both in the pulsed state and during pulse collapse and fragmentation. The results provide insight into the complex nonlinear dynamics of mid-IR soliton fiber lasers and open up new opportunities for obtaining a variety of stable multi-pulse mode-locked states at mid-IR wavelengths.},
author = {Huang, J. and Pang, M. and Jiang, X. and He, W. and Russell, Philip St. John},
doi = {10.1364/OE.27.026392},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2019-09-24},
pages = {26392-26404},
peerreviewed = {Yes},
title = {{Route} from single-pulse to multi-pulse states in a mid-infrared soliton fiber laser},
volume = {27},
year = {2019}
}
@inproceedings{faucris.260825227,
abstract = {By harnessing quantum effects, we nowadays can use encryption that is in principle proven to withstand any conceivable attack. These fascinating quantum features have been implemented in metropolitan quantum networks around the world. In order to interconnect such networks over long distances, optical satellite communication is the method of choice. Standard telecommunication components allow one to efficiently implement quantum communication by measuring field quadratures (continuous variables). This opens the possibility to adapt our Laser Communication Terminals (LCTs) to quantum key distribution (QKD). First satellite measurement campaigns are currently validating our approach.},
author = {Elser, Dominique Alexander and Günthner, Kevin and Khan, Imran and Stiller, Birgit and Marquardt, Christoph and Leuchs, Gerd and Saucke, Karen and Tröndle, Daniel and Heine, Frank and Seel, Stefan and Greulich, Peter and Zech, Herwig and Gütlich, Björn and Richter, Ines and Meyer, Rolf},
booktitle = {2015 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2015},
date = {2015-10-26/2015-10-28},
doi = {10.1109/ICSOS.2015.7425077},
faupublication = {yes},
isbn = {9781509002818},
keywords = {free-space optical communication; quantum cryptography; quantum key distribution; satellite quantum communication; satellite-ground laser communication},
note = {CRIS-Team Scopus Importer:2021-06-29},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Satellite} quantum communication via the alphasat laser communication terminal quantum signals from 36 thousand kilometers above earth},
venue = {New Orleans, LA},
year = {2016}
}
@article{faucris.260270865,
abstract = {Soliton dynamics can be used to temporally compress laser pulses to few fs durations in many different spectral regions. Here we study analytically, numerically and experimentally the scaling of soliton dynamics in noble gas-filled hollow-core fibers. We identify an optimal parameter region, taking account of higher-order dispersion, photoionization, self-focusing, and modulational instability. Although for single-shots the effects of photoionization can be reduced by using lighter noble gases, they become increasingly important as the repetition rate rises. For the same optical nonlinearity, the higher pressure and longer diffusion times of the lighter gases can considerably enhance the long-term effects of ionization, as a result of pulse-by-pulse buildup of refractive index changes. To illustrate the counter-intuitive nature of these predictions, we compressed 250 fs pulses at 1030 nm in an 80-cm-long hollow-core photonic crystal fiber (core radius 15 µm) to ∼5 fs duration in argon and neon, and found that, although neon performed better at a repetition rate of 1 MHz, stable compression in argon was still possible up to 10 MHz.},
author = {Schade, Daniel and Köttig, Felix and Koehler, Johannes R. and Frosz, Michael H. and Russell, Philip St. John and Tani, Francesco},
doi = {10.1364/OE.426307},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2021-06-18},
pages = {19147-19158},
peerreviewed = {Yes},
title = {{Scaling} rules for high quality soliton self-compression in hollow-core fibers},
volume = {29},
year = {2021}
}
@article{faucris.122961124,
abstract = {We discuss the scattering of a light pulse by a single atom in free space using a purely semi-classical framework. The atom is treated as a linear elastic scatterer allowing to treat each spectral component of the incident pulse separately. For an increasing exponential pulse with a dipole radiation pattern incident from full solid angle the spectrum resulting from interference of incident and scattered components is a decreasing exponential pulse.},
author = {Sondermann, Markus and Leuchs, Gerd},
faupublication = {yes},
journal = {Romanian Reports in Physics},
pages = {638-645},
peerreviewed = {Yes},
title = {{Scattering} of an exponential pulse by a single atom},
url = {https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883852750&origin=inward},
volume = {65},
year = {2013}
}
@article{faucris.122150644,
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Ralph T. C., Silberhorn Ch, Korolkova Natalia},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.scheme},
pages = {1927-1939},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Scheme} for the generation of entangeled solitons for quantum communication},
volume = {46},
year = {1999}
}
@article{faucris.312964670,
abstract = {The IceCube Neutrino Observatory sends realtime neutrino alerts with a high probability of being astrophysical in origin. We present a new method to correlate these events and possible candidate sources using 2089 blazars from the Fermi-LAT 4LAC-DR2 catalog and with 3413 active galactic nuclei (AGNs) from the Radio Fundamental Catalog. No statistically significant neutrino emission was found in any of the catalog searches. The result suggests that a small fraction, <1%, of the studied AGNs emit neutrinos that pass the alert criteria, and is compatible with prior evidence for neutrino emission presented by IceCube and other authors from sources such as TXS 0506 + 056 and PKS 1502 + 106. We also present cross-checks to other analyses that claim a significant correlation using similar data samples.},
author = {Abbasi, R. and Ackermann, M. and Adams, J. and Agarwalla, S. K. and Aguilar, J. A. and Ahlers, M. and Alameddine, J. M. and Amin, N. M. and Andeen, K. and Anton, Gisela and Argüelles, C. and Ashida, Y. and Athanasiadou, S. and Axani, S. N. and Bai, X. and Balagopal, A. V. and Baricevic, M. and Barwick, S. W. and Basu, V. and Bay, R. and Beatty, J. J. and Becker, K. H. and Tjus, J. Becker and Beise, J. and Bellenghi, C. and Benning, C. and Benzvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Blaufuss, E. and Blot, S. and Bontempo, F. and Book, J. Y. and Meneguolo, C. Boscolo and Böser, S. and Botner, O. and Böttcher, J. and Bourbeau, E. and Braun, J. and Brinson, B. and Brostean-Kaiser, J. and Burley, R. T. and Busse, R. S. and Butterfield, D. and Campana, M. A. and Carloni, K. and Carnie-Bronca, E. G. and Chattopadhyay, S. and Chau, N. and Chen, C. and Chen, Z. and Chirkin, D. and Choi, S. and Clark, B. A. and Classen, L. and Coleman, A. and Collin, G. H. and Connolly, A. and Conrad, J. M. and Coppin, P. and Correa, P. and Countryman, S. and Cowen, D. F. and Dave, P. and De Clercq, C. and Delaunay, J. J. and Delgado, D. and Dembinski, H. and Deng, S. and Deoskar, K. and Desai, A. and Desiati, P. and De Vries, K. D. and De Wasseige, G. and Deyoung, T. and Diaz, A. and Díaz-Vélez, J. C. and Dittmer, M. and Domi, Alba and Dujmovic, H. and Duvernois, M. A. and Ehrhardt, T. and Eller, P. and El Mentawi, S. and Engel, R. and Erpenbeck, H. and Evans, J. and Evenson, P. A. and Fan, K. L. and Fang, K. and Farrag, K. and Fazely, A. R. and Fedynitch, A. and Feigl, N. and Fiedlschuster, Sebastian and Finley, C. and Fischer, L. and Fox, D. and Franckowiak, A. and Friedman, E. and Fritz, A. and Fürst, P. and Gaisser, T. K. and Gallagher, J. and Ganster, E. and Garcia, A. and Gerhardt, L. and Ghadimi, A. and Glaser, C. and Glauch, T. and Glüsenkamp, Thorsten and Goehlke, N. and Gonzalez, J. G. and Goswami, S. and Grant, D. and Gray, S. J. and Gries, O. and Griffin, S. and Griswold, S. and Günther, C. and Gutjahr, P. and Haack, C. and Hallgren, A. and Halliday, R. and Halve, L. and Halzen, F. and Hamdaoui, H. and Minh, M. Ha and Hanson, K. and Hardin, J. and Harnisch, A. A. and Hatch, P. and Haungs, A. and Helbing, K. and Hellrung, J. and Henningsen, F. and Heuermann, L. and Heyer, N. and Hickford, S. and Hidvegi, A. and Hill, C. and Hill, G. C. and Hoffman, K. D. and Hori, S. and Hoshina, K. and Hou, W. and Huber, T. and Hultqvist, K. and Hünnefeld, M. and Hussain, R. and Hymon, K. and In, S. and Ishihara, A. and Jacquart, M. and Janik, O. and Jansson, M. and Japaridze, G. S. and Jayakumar, K. and Jeong, M. and Jin, M. and Jones, B. J.P. and Kang, D. and Kang, W. and Kang, X. and Kappes, A. and Kappesser, D. and Kardum, L. and Karg, T. and Karl, M. and Karle, A. and Katz, Uli and Kauer, M. and Kelley, J. L. and Zathul, A. Khatee and Kheirandish, A. and Kiryluk, J. and Klein, S. R. and Kochocki, A. and Koirala, R. and Kolanoski, H. and Kontrimas, T. and Köpke, L. and Kopper, Claudio and Koskinen, D. J. and Koundal, P. and Kovacevich, M. and Kowalski, M. and Kozynets, T. and Kruiswijk, K. and Krupczak, E. and Kumar, A. and Kun, E. and Kurahashi, N. and Lad, N. and Lagunas Gualda, C. and Lamoureux, M. and Larson, M. J. and Latseva, S. and Lauber, F. and Lazar, J. P. and Lee, J. W. and Deholton, K. Leonard and Leszczyńska, A. and Lincetto, M. and Liu, Q. R. and Liubarska, M. and Lohfink, E. and Love, C. and Mariscal, C. J.Lozano and Lu, L. and Lucarelli, F. and Ludwig, A. and Luszczak, W. and Lyu, Y. and Madsen, J. and Mahn, K. B.M. and Makino, Y. and Manao, E. and Mancina, S. and Sainte, W. Marie and Mariş, I. C. and Marka, S. and Marka, Z. and Marsee, M. and Martinez-Soler, I. and Maruyama, R. and Mayhew, F. and McElroy, T. and McNally, F. and Mead, J. V. and Meagher, K. and Mechbal, S. and Medina, A. and Meier, M. and Merckx, Y. and Merten, L. and Micallef, J. and Montaruli, T. and Moore, R. W. and Morii, Y. and Morse, R. and Moulai, M. and Mukherjee, T. and Naab, R. and Nagai, R. and Nakos, M. and Naumann, U. and Necker, J. and Neumann, M. and Niederhausen, H. and Nisa, M. U. and Noell, A. and Nowicki, S. C. and Pollmann, A. Obertacke and O'Dell, V. and Oehler, M. and Oeyen, B. and Olivas, A. and Orsoe, R. and Osborn, J. and O'Sullivan, E. and Pandya, H. and Park, N. and Parker, G. K. and Paudel, E. N. and Paul, L. and De Los Heros, C. Pérez and Peterson, J. and Philippen, S. and Pieper, S. and Pizzuto, A. and Plum, M. and Pontén, A. and Popovych, Y. and Prado Rodriguez, M. and Pries, B. and Procter-Murphy, R. and Przybylski, G. T. and Rack-Helleis, J. and Rawlins, K. and Rechav, Z. and Rehman, A. and Reichherzer, P. and Renzi, G. and Resconi, E. and Reusch, S. and Rhode, W. and Richman, M. and Riedel, B. and Rifaie, A. and Roberts, E. J. and Robertson, S. and Rodan, S. and Roellinghoff, G. and Rongen, Martin and Rott, C. and Ruhe, T. and Ruohan, L. and Ryckbosch, D. and Safa, I. and Saffer, J. and Salazar-Gallegos, D. and Sampathkumar, P. and Sanchez Herrera, S. E. and Sandrock, A. and Santander, M. and Sarkar, S. and Sarkar, S. and Savelberg, J. and Savina, P. and Schaufel, M. and Schieler, H. and Schindler, Sabine and Schlickmann, L. and Schlüter, B. and Schlüter, F. and Schmidt, T. and Schneider, Jessica and Schröder, F. G. and Schumacher, L. and Schwefer, G. and Sclafani, S. and Seckel, D. and Seikh, M. and Seunarine, S. and Shah, R. and Sharma, A. and Shefali, S. and Shimizu, N. and Silva, M. and Skrzypek, B. and Smithers, B. and Snihur, R. and Soedingrekso, J. and Søgaard, A. and Soldin, D. and Soldin, P. and Sommani, G. and Spannfellner, C. and Spiczak, G. M. and Spiering, C. and Stamatikos, M. and Stanev, T. and Stezelberger, T. and Stürwald, T. and Stuttard, T. and Sullivan, G. W. and Taboada, I. and Ter-Antonyan, S. and Thiesmeyer, M. and Thompson, W. G. and Thwaites, J. and Tilav, S. and Tollefson, K. and Tönnis, C. and Toscano, S. and Tosi, D. and Trettin, A. and Tung, C. F. and Turcotte, R. and Twagirayezu, J. P. and Ty, B. and Unland Elorrieta, M. A. and Upadhyay, A. K. and Upshaw, K. and Valtonen-Mattila, N. and Vandenbroucke, J. and Van Eijndhoven, N. and Vannerom, D. and Van Santen, J. and Vara, J. and Veitch-Michaelis, J. and Venugopal, M. and Vereecken, M. and Verpoest, S. and Veske, D. and Walck, C. and Watson, T. B. and Weaver, C. and Weigel, P. and Weindl, A. and Weldert, J. and Wendt, C. and Werthebach, J. and Weyrauch, M. and Whitehorn, N. and Wiebusch, C. H. and Willey, N. and Williams, D. R. and Wolf, A. and Wolf, M. and Wrede, Gerrit and Xu, X. W. and Yanez, J. P. and Yildizci, E. and Yoshida, S. and Young, R. and Yu, F. and Yu, S. and Yuan, T. and Zhang, Z. and Zhelnin, P.},
doi = {10.3847/1538-4357/acdfcb},
faupublication = {yes},
journal = {Astrophysical Journal},
note = {CRIS-Team Scopus Importer:2023-10-20},
peerreviewed = {Yes},
title = {{Search} for {Correlations} of {High}-energy {Neutrinos} {Detected} in {IceCube} with {Radio}-bright {AGN} and {Gamma}-{Ray} {Emission} from {Blazars}},
volume = {954},
year = {2023}
}
@article{faucris.318374546,
abstract = {The IceCube Neutrino Observatory has been continuously taking data to search for O(0.5–10) s long neutrino bursts since 2007. Even if a Galactic core-collapse supernova is optically obscured or collapses to a black hole instead of exploding, it will be detectable via the O(10) MeV neutrino burst emitted during the collapse. We discuss a search for such events covering the time between 2008 April 17 and 2019 December 31. Considering the average data taking and analysis uptime of 91.7% after all selection cuts, this is equivalent to 10.735 yr of continuous data taking. In order to test the most conservative neutrino production scenario, the selection cuts were optimized for a model based on an 8.8 solar mass progenitor collapsing to an O–Ne–Mg core. Conservative assumptions on the effects of neutrino oscillations in the exploding star were made. The final selection cut was set to ensure that the probability to detect such a supernova within the Milky Way exceeds 99%. No such neutrino burst was found in the data after performing a blind analysis. Hence, a 90% C.L. upper limit on the rate of core-collapse supernovae out to distances of ≈25 kpc was determined to be 0.23 yr−1. For the more distant Magellanic Clouds, only high neutrino luminosity supernovae will be detectable by IceCube, unless external information on the burst time is available. We determined a model-independent limit by parameterizing the dependence on the neutrino luminosity and the energy spectrum.},
author = {Abbasi, R. and Ackermann, M. and Adams, J. and Agarwalla, S. K. and Aguilar, J. A. and Ahlers, M. and Alameddine, J. M. and Amin, N. M. and Andeen, K. and Anton, Gisela and Argüelles, C. and Ashida, Y. and Athanasiadou, S. and Axani, S. N. and Bai, X. and Balagopal, A. V. and Baricevic, M. and Barwick, S. W. and Basu, V. and Bay, R. and Beatty, J. J. and Beise, J. and Bellenghi, C. and Benning, C. and BenZvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Becker Tjus, J. and Blaufuss, E. and Blot, S. and Bontempo, F. and Book, J. Y. and Boscolo Meneguolo, C. and Böser, S. and Botner, O. and Böttcher, J. and Bourbeau, E. and Braun, J. and Brinson, B. and Brostean-Kaiser, J. and Burley, R. T. and Busse, R. S. and Butterfield, D. and Campana, M. A. and Carloni, K. and Carnie-Bronca, E. G. and Chattopadhyay, S. and Chau, N. and Chen, C. and Chen, Z. and Chirkin, D. and Choi, S. and Clark, B. A. and Classen, L. and Coleman, A. and Collin, G. H. and Connolly, A. and Conrad, J. M. and Coppin, P. and Correa, P. and Countryman, S. and Cowen, D. F. and Dave, P. and De Clercq, C. and DeLaunay, J. J. and Delgado, D. and Deng, S. and Deoskar, K. and Desai, A. and Desiati, P. and de Vries, K. D. and de Wasseige, G. and DeYoung, T. and Diaz, A. and Díaz-Vélez, J. C. and Dittmer, M. and Domi, Alba and Dujmovic, H. and DuVernois, M. A. and Ehrhardt, T. and Eller, P. and Ellinger, E. and El Mentawi, S. and Elsässer, D. and Engel, R. and Erpenbeck, H. and Evans, J. and Evenson, P. A. and Fan, K. L. and Fang, K. and Farrag, K. and Fazely, A. R. and Fedynitch, A. and Feigl, N. and Fiedlschuster, Sebastian and Finley, C. and Fischer, L. and Fox, D. and Franckowiak, A. and Fritz, A. and Fürst, P. and Gallagher, J. and Ganster, E. and Garcia, A. and Gerhardt, L. and Ghadimi, A. and Glaser, C. and Glauch, T. and Glüsenkamp, Thorsten and Goehlke, N. and Gonzalez, J. G. and Goswami, S. and Grant, D. and Gray, S. J. and Gries, O. and Griffin, S. and Griswold, S. and Groth, K. M. and Günther, C. and Gutjahr, P. and Haack, Christian and Hallgren, A. and Halliday, R. and Halve, L. and Halzen, F. and Hamdaoui, H. and Ha Minh, M. and Hanson, K. and Hardin, J. and Harnisch, A. A. and Hatch, P. and Haungs, A. and Helbing, K. and Hellrung, J. and Henningsen, F. and Heuermann, L. and Heyer, N. and Hickford, S. and Hidvegi, A. and Hill, C. and Hill, G. C. and Hoffman, K. D. and Hori, S. and Hoshina, K. and Hou, W. and Huber, T. and Hultqvist, K. and Hünnefeld, M. and Hussain, R. and Hymon, K. and In, S. and Ishihara, A. and Jacquart, M. and Janik, O. and Jansson, M. and Japaridze, G. S. and Jeong, M. and Jin, M. and Jones, B. J.P. and Kang, D. and Kang, W. and Kang, X. and Kappes, A. and Kappesser, D. and Kardum, L. and Karg, T. and Karl, M. and Karle, A. and Katz, Uli and Kauer, M. and Kelley, J. L. and Khatee Zathul, A. and Kheirandish, A. and Klein, S. R. and Kiryluk, J. and Kochocki, A. and Koirala, R. and Kolanoski, H. and Kontrimas, T. and Köpke, L. and Kopper, Claudio and Koskinen, D. J. and Koundal, P. and Kovacevich, M. and Kowalski, M. and Kozynets, T. and Krishnamoorthi, J. and Kruiswijk, K. and Krupczak, E. and Kumar, A. and Kun, E. and Kurahashi, N. and Lad, N. and Lagunas Gualda, C. and Lamoureux, M. and Larson, M. J. and Latseva, S. and Lauber, F. and Lazar, J. P. and Lee, J. W. and Leonard DeHolton, K. and Leszczyńska, A. and Lincetto, M. and Liu, Q. R. and Liubarska, M. and Lohfink, E. and Love, C. and Lozano Mariscal, C. J. and Lu, L. and Lucarelli, F. and Luszczak, W. and Lyu, Y. and Madsen, J. and Mahn, K. B.M. and Makino, Y. and Manao, E. and Mancina, S. and Marie Sainte, W. and Mariş, I. C. and Marka, S. and Marka, Z. and Marsee, M. and Martinez-Soler, I. and Maruyama, R. and Mayhew, F. and McElroy, T. and McNally, F. and Mead, J. V. and Meagher, K. and Mechbal, S. and Medina, A. and Meier, M. and Merckx, Y. and Merten, L. and Micallef, J. and Mitchell, J. and Montaruli, T. and Moore, R. W. and Morii, Y. and Morse, R. and Moulai, M. and Mukherjee, T. and Naab, R. and Nagai, R. and Nakos, M. and Naumann, U. and Necker, J. and Negi, A. and Neumann, M. and Niederhausen, H. and Nisa, M. U. and Noell, A. and Novikov, A. and Nowicki, S. C. and Obertacke Pollmann, A. and O’Dell, V. and Oehler, M. and Oeyen, B. and Olivas, A. and Orsoe, R. and Osborn, J. and O’Sullivan, E. and Pandya, H. and Park, N. and Parker, G. K. and Paudel, E. N. and Paul, L. and Pérez de los Heros, C. and Peterson, J. and Philippen, S. and Pizzuto, A. and Plum, M. and Pontén, A. and Popovych, Y. and Prado Rodriguez, M. and Pries, B. and Procter-Murphy, R. and Przybylski, G. T. and Raab, C. and Rack-Helleis, J. and Rawlins, K. and Rechav, Z. and Rehman, A. and Reichherzer, P. and Renzi, G. and Resconi, E. and Reusch, S. and Rhode, W. and Riedel, B. and Rifaie, A. and Roberts, E. J. and Robertson, S. and Rodan, S. and Roellinghoff, G. and Rongen, Martin and Rott, C. and Ruhe, T. and Ruohan, L. and Ryckbosch, D. and Safa, I. and Saffer, J. and Salazar-Gallegos, D. and Sampathkumar, P. and Sanchez Herrera, S. E. and Sandrock, A. and Santander, M. and Sarkar, S. and Sarkar, S. and Savelberg, J. and Savina, P. and Schaufel, M. and Schieler, H. and Schindler, Sabine and Schlickmann, L. and Schlüter, B. and Schlüter, F. and Schmeisser, N. and Schmidt, T. and Schneider, Jessica and Schröder, F. G. and Schumacher, Lisa and Schwefer, G. and Sclafani, S. and Seckel, D. and Seikh, M. and Seunarine, S. and Shah, R. and Sharma, A. and Shefali, S. and Shimizu, N. and Silva, M. and Skrzypek, B. and Smithers, B. and Snihur, R. and Soedingrekso, J. and Søgaard, A. and Soldin, D. and Soldin, P. and Sommani, G. and Spannfellner, C. and Spiczak, G. M. and Spiering, C. and Stamatikos, M. and Stanev, T. and Stezelberger, T. and Stürwald, T. and Stuttard, T. and Sullivan, G. W. and Taboada, I. and Ter-Antonyan, S. and Thiesmeyer, M. and Thompson, W. G. and Thwaites, J. and Tilav, S. and Tollefson, K. and Tönnis, C. and Toscano, S. and Tosi, D. and Trettin, A. and Tung, C. F. and Turcotte, R. and Twagirayezu, J. P. and Ty, B. and Unland Elorrieta, M. A. and Upadhyay, A. K. and Upshaw, K. and Valtonen-Mattila, N. and Vandenbroucke, J. and van Eijndhoven, N. and Vannerom, D. and van Santen, J. and Vara, J. and Veitch-Michaelis, J. and Venugopal, M. and Vereecken, M. and Verpoest, S. and Veske, D. and Vijai, A. and Walck, C. and Weaver, C. and Weigel, P. and Weindl, A. and Weldert, J. and Wendt, C. and Werthebach, J. and Weyrauch, M. and Whitehorn, N. and Wiebusch, C. H. and Willey, N. and Williams, D. R. and Wolf, A. and Wolf, M. and Wrede, Gerrit and Xu, X. W. and Yanez, J. P. and Yildizci, E. and Yoshida, S. and Young, R. and Yu, F. and Yu, S. and Yuan, T. and Zhang, Z. and Zhelnin, P.},
doi = {10.3847/1538-4357/ad07d1},
faupublication = {yes},
journal = {Astrophysical Journal},
keywords = {Core-collapse supernovae (304); Neutrino telescopes (1105); Supernova neutrinos (1666)},
month = {Jan},
note = {CRIS-Team Scopus Importer:2024-02-16},
peerreviewed = {Yes},
title = {{Search} for {Galactic} {Core}-collapse {Supernovae} in a {Decade} of {Data} {Taken} with the {IceCube} {Neutrino} {Observatory}},
volume = {961},
year = {2024}
}
@article{faucris.280975942,
abstract = {For several decades, the origin of ultra-high-energy cosmic rays (UHECRs) has been an unsolved question of high-energy astrophysics. One approach for solving this puzzle is to correlate UHECRs with high-energy neutrinos, since neutrinos are a direct probe of hadronic interactions of cosmic rays and are not deflected by magnetic fields. In this paper, we present three different approaches for correlating the arrival directions of neutrinos with the arrival directions of UHECRs. The neutrino data are provided by the IceCube Neutrino Observatory and ANTARES, while the UHECR data with energies above similar to 50 EeV are provided by the Pierre Auger Observatory and the Telescope Array. All experiments provide increased statistics and improved reconstructions with respect to our previous results reported in 2015. The first analysis uses a high-statistics neutrino sample optimized for point-source searches to search for excesses of neutrino clustering in the vicinity of UHECR directions. The second analysis searches for an excess of UHECRs in the direction of the highest-energy neutrinos. The third analysis searches for an excess of pairs of UHECRs and highest-energy neutrinos on different angular scales. None of the analyses have found a significant excess, and previously reported overfluctuations are reduced in significance. Based on these results, we further constrain the neutrino flux spatially correlated with UHECRs.},
author = {Albert, A. and Domi, Alba and Alves, S. and Andre, M. and Anghinolfi, M. and Ardid, S. and Aubert, J-J and Aublin, J. and Baret, B. and Basa, S. and Belhorma, B. and Bendahman, M. and Bertin, and Biagi, S. and Bissinger, Matthias and Boumaaza, J. and Bouta, M. and Bouwhuis, M. C. and Bruijn, R. and Brunner, J. and Busto, J. and Caiffi, B. and Calvo, D. and Capone, A. and Caramete, L. and Carr, J. and Carretero, and Celli, S. and Chabab, M. and Chau, T. N. and El Moursli, R. Cherkaoui and Chiarusi, T. and Circella, M. and Coleiro, A. and Coniglione, R. and Coyle, P. and Creusot, A. and Diaz, A. F. and Distefano, C. and Di Palma, and Domi, A. and Donzaud, C. and Dornic, D. and Drouhin, D. and Eberl, Thomas and Van Eeden, T. and Van Eijk, D. and El Khayati, N. and Enzenhofer, A. and Fermani, P. and Ferrara, G. and Filippini, F. and Fusco, L. and Gatelet, Y. and Gay, P. and Glotin, H. and Gozzini, R. and Ruiz, R. Gracia and Graf, Kay and Guidi, C. and Hallmann, Steffen and Van Haren, H. and Heijboer, A. J. and Hello, Y. and Hernandez-Rey, J. J. and Hößl, Jürgen and Hofestädt, Jannik and Huang, F. and Illuminati, G. and James, C. W. and Jisse-Jung, B. and De Jong, M. and De Jong, P. and Kadler, M. and Kalekin, O. and Katz, Uli and Khan-Chowdhury, N. R. and Kouchner, A. and Kreykenbohm, and Kulikovskiy, and Lahmann, Robert and Le Breton, R. and Lestum, S. and Lefevre, D. and Leonora, E. and Levi, G. and Lopez-Coto, D. and Loucatos, S. and Maderer, L. and Manczak, J. and Marcelin, M. and Margiotta, A. and Marinelli, A. and Martinez-Mora, J. A. and Martino, B. and Melis, K. and Migliozzi, P. and Moussa, A. and Muller, R. and Nauta, L. and Navas, S. and Nezri, E. and Fearraigh, B. O. and Pellegrino, C. and Perrin-Terrin, M. and Pestel, and Piattelli, P. and Pieterse, C. and Poire, C. and Popa, and Pradier, T. and Randazzo, N. and Real, Diego and Reck, Stefan and Riccobene, G. and Romanov, A. and Sanchez-Losa, A. and Greus, F. Salesa and Samtleben, D. F. E. and Sanguineti, M. and Sapienza, P. and Schnabel, Jutta and Schumann, Johannes and Schussler, F. and Seneca, J. and Spurio, M. and Stolarczyk, Th and Taiuti, M. and Tayalati, Y. and Tingay, S. J. and Vallage, B. and Van Elewyck, V. and Versari, F. and Viola, S. and Vivolo, D. and Wilms, Jörn and Zavatarelli, S. and Zegarelli, A. and Zornoza, J. D. and Zuniga, J. and Abbasi, R. and Ackermann, M. and Adams, J. and Aguilar, J. A. and Ahlers, M. and Ahrens, M. and Alameddine, J. M. and Alispach, C. and Alves, A. A. and Amin, N. M. and Andeen, K. and Anderson, T. and Anton, Gisela and Arguelles, C. and Ashida, Y. and Axani, S. and Bai, X. and Balagopal, A. and Barbano, A. and Barwick, S. W. and Bastian, B. and Basu, and Baur, S. and Bay, R. and Beatty, J. J. and Becker, K-H and Tjus, J. Becker and Bellenghi, C. and Benzvi, S. and Berley, D. and Bernardini, E. and Besson, D. Z. and Binder, G. and Bindig, D. and Blaufuss, E. and Blot, S. and Boddenberg, M. and Bontempo, F. and Borowka, J. and Boser, S. and Botner, O. and Boettcher, J. and Bourbeau, E. and Bradascio, F. and Braun, J. and Brinson, B. and Bron, S. and Brostean-Kaiser, J. and Browne, S. and Burgman, A. and Burley, R. T. and Busse, R. S. and Campana, M. A. and Carnie-Bronca, E. G. and Chen, C. and Chen, Z. and Chirkin, D. and Choi, K. and Clark, B. A. and Clark, K. and Classen, L. and Collin, G. H. and Conrad, J. M. and Coppin, P. and Correa, P. and Cowen, D. F. and Cross, R. and Dappen, C. and Dave, P. and De Clercq, C. and Delaunay, J. J. and Lopez, D. Delgado and Dembinski, H. and Deoskar, K. and Desai, A. and Desiati, P. and De Vries, K. D. and De Wasseige, G. and De With, M. and Deyoung, T. and Diaz, A. and Diaz-Velez, J. C. and Dittmer, M. and Dujmovic, H. and Dunkman, M. and Duvernois, M. A. and Dvorak, E. and Ehrhardt, T. and Eller, P. and Erpenbeck, H. and Evans, J. and Evenson, P. A. and Fan, K. L. and Fazely, A. R. and Fedynitch, A. and Feigl, N. and Fiedlschuster, Sebastian and Fienberg, A. T. and Filimonov, K. and Finley, C. and Fischer, L. and Fox, D. and Franckowiak, A. and Friedman, E. and Fritz, A. and Furst, P. and Gaisser, T. K. and Gallagher, J. and Ganster, E. and Garcia, A. and Garrappa, S. and Gerhardt, L. and Ghadimi, A. and Glaser, C. and Glauch, T. and Glüsenkamp, Thorsten and Gonzalez, J. G. and Goswami, S. and Grant, D. and Gregoire, T. and Griswold, S. and Gunther, C. and Gutjahr, P. and Haack, C. and Hallgren, A. and Halliday, R. and Halve, L. and Halzen, F. and Ha Minh, M. and Hanson, K. and Hardin, J. and Harnisch, A. A. and Haungs, A. and Hebecker, D. and Helbing, K. and Henningsen, F. and Hettinger, E. C. and Hickford, S. and Hignight, J. and Hill, C. and Hill, G. C. and Hoffman, K. D. and Hoffmann, R. and Hokanson-Fasig, B. and Hoshina, K. and Huber, M. and Huber, T. and Hultqvist, K. and Huennefeld, M. and Hussain, R. and Hymon, K. and In, S. and Iovine, N. and Ishihara, A. and Jansson, M. and Japaridze, G. S. and Jeong, M. and Jin, M. and Jones, B. J. P. and Kang, D. and Kang, W. and Kang, X. and Kappes, A. and Kappesser, D. and Kardum, L. and Karg, T. and Karl, M. and Karle, A. and Kauer, M. and Kellermann, M. and Kelley, J. L. and Kheirandish, A. and Kin, K. and Kintscher, T. and Kiryluk, J. and Klein, S. R. and Koirala, R. and Kolanoski, H. and Kontrimas, T. and Koepke, L. and Kopper, C. and Kopper, S. and Koskinen, D. J. and Koundal, P. and Kovacevich, M. and Kowalski, M. and Kozynets, T. and Kun, E. and Kurahashi, N. and Lad, N. and Gualda, C. Lagunas and Lanfranchi, J. L. and Larson, M. J. and Lauber, F. and Lazar, J. P. and Lee, J. W. and Leonard, K. and Leszczynska, A. and Li, Y. and Lincetto, M. and Liu, Q. R. and Liubarska, M. and Lohfink, E. and Mariscal, C. J. Lozano and Lucarelli, F. and Ludwig, A. and Luszczak, W. and Lyu, Y. and Ma, W. Y. and Madsen, J. and Mahn, K. B. M. and Makino, Y. and Mancina, S. and Martinez-Soler, and Maruyama, R. and Mase, K. and Mcelroy, T. and Mcnally, F. and Mead, J. and Meagher, K. and Mechbal, S. and Medina, A. and Meier, M. and Meighen-Berger, S. and Micallef, J. and Mockler, D. and Montaruli, T. and Moore, R. W. and Morse, R. and Moulai, M. and Naab, R. and Nagai, R. and Naumann, U. and Necker, J. and Niederhausen, H. and Nisa, M. U. and Nowicki, S. C. and Pollmann, A. Obertacke and Oehler, M. and Oeyen, B. and Olivas, A. and O'Sullivan, E. and Pandya, H. and Pankova, D. and Park, N. and Parker, G. K. and Paudel, E. N. and Paul, L. and De Los Heros, C. Perez and Peters, L. and Peterson, J. and Philippen, S. and Pieper, S. and Pittermann, M. and Pizzuto, A. and Plum, M. and Popovych, Y. and Porcelli, A. and Rodriguez, M. Prado and Price, P. B. and Pries, B. and Przybylski, G. T. and Raab, C. and Rack-Helleis, J. and Raissi, A. and Rameez, M. and Rawlins, K. and Rea, I. C. and Rehman, A. and Reichherzer, P. and Reimann, R. and Renzi, G. and Resconi, E. and Reusch, S. and Rhode, W. and Richman, M. and Riedel, B. and Roberts, E. J. and Robertson, S. and Roellinghoff, G. and Rongen, M. and Rott, C. and Ruhe, T. and Ryckbosch, D. and Cantu, D. Rysewyk and Safa, and Saffer, J. and Herrera, S. E. Sanchez and Sandrock, A. and Santander, M. and Sarkar, S. and Satalecka, K. and Schaufel, M. and Schindler, Sabine and Schmidt, T. and Schneider, A. and Schneider, Jessica and Schroder, F. G. and Schumacher, L. and Schwefer, G. and Sclafani, S. and Seckel, D. and Seunarine, S. and Sharma, A. and Shefali, S. and Silva, M. and Skrzypek, B. and Smithers, B. and Snihur, R. and Soedingrekso, J. and Soldin, D. and Spannfellner, C. and Spiczak, G. M. and Spiering, C. and Stachurska, J. and Stamatikos, M. and Stanev, T. and Stein, R. and Stettner, J. and Steuer, A. and Stezelberger, T. and Sturwald, T. and Stuttard, T. and Sullivan, G. W. and Taboada, and Ter-Antonyan, S. and Tilav, S. and Tischbein, F. and Tollefson, K. and Tonnis, C. and Toscano, S. and Tosi, D. and Trettin, A. and Tselengidou, Maria and Tung, C. F. and Turcati, A. and Turcotte, R. and Turley, C. F. and Twagirayezu, J. P. and Ty, B. and Elorrieta, M. A. Unland and Valtonen-Mattila, N. and Vandenbroucke, J. and Van Eijndhoven, N. and Vannerom, D. and Van Santen, J. and Verpoest, S. and Walck, C. and Watson, T. B. and Weaver, C. and Weigel, P. and Weindl, A. and Weiss, M. J. and Weldert, J. and Wendt, C. and Werthebach, J. and Weyrauch, M. and Whitehorn, N. and Wiebusch, C. H. and Williams, D. R. and Wolf, M. and Woschnagg, K. and Wrede, Gerrit and Wulff, J. and Xu, X. W. and Yanez, J. P. and Yoshida, S. and Yu, S. and Yuan, T. and Zhang, Z. and Zhelnin, P. and Abreu, P. and Aglietta, M. and Albury, J. M. and Allekotte, and Cheminant, K. Almeida and Almela, A. and Alvarez-Muniz, J. and Batista, R. Alves and Anastasi, G. A. and Anchordoqui, L. and Andrada, B. and Andringa, S. and Aramo, C. and Ferreira, P. R. Araujo and Arnone, E. and Velazquez, J. C. Arteaga and Asorey, H. and Assis, P. and Avila, G. and Badescu, A. M. and Bakalova, A. and Balaceanu, A. and Barbato, F. and Bellido, J. A. and Berat, C. and Bertaina, M. E. and Bertou, X. and Bhatta, G. and Biermann, P. L. and Binet, and Bismark, K. and Bister, T. and Biteau, J. and Blazek, J. and Bleve, C. and Blumer, J. and Boncioli, D. and Bonifazi, C. and Arbeletche, L. Bonneau and Borodai, N. and Botti, A. M. and Brack, J. and Bretz, T. and Brichetto Orchera, P. G. and Briechle, F. L. and Buchholz, P. and Bueno, A. and Buitink, S. and Buscemi, M. and Busken, M. and Caballero-Mora, K. S. and Caccianiga, L. and Canfora, F. and Caracas, and Caruso, R. and Castellina, A. and Catalani, F. and Cataldi, G. and Cazon, L. and Cerda, M. and Chinellato, J. A. and Chudoba, J. and Chytka, L. and Clay, R. W. and Cobos Cerutti, A. C. and Colalillo, R. and Coleman, A. and Coluccia, M. R. and Conceicao, R. and Condorelli, A. and Consolati, G. and Contreras, F. and Convenga, F. and Dos Santos, D. Correia and Covault, C. E. and Dasso, S. and Daumiller, K. and Dawson, B. R. and Day, J. A. and De Almeida, R. M. and De Jesus, J. and De Jong, S. J. and De Mello Neto, J. R. T. and De Mitri, and De Oliveira, J. and Franco, D. De Oliveira and De Palma, F. and De Souza, and De Vito, E. and Del Popolo, A. and Del Rio, M. and Deligny, O. and Deval, L. and Di Matteo, A. and Dobre, M. and Dobrigkeit, C. and D'Olivo, J. C. and Domingues Mendes, L. M. and Dos Anjos, R. C. and Dova, M. T. and Ebr, J. and Engel, R. and Epicoco, and Erdmann, M. and Escobar, C. O. and Etchegoyen, A. and Falcke, H. and Farmer, J. and Farrar, G. and Fauth, A. C. and Fazzini, N. and Feldbusch, F. and Fenu, F. and Fick, B. and Figueira, J. M. and Fitoussi, T. and Fodran, T. and Fujii, T. and Fuster, A. and Galea, C. and Galelli, C. and Garcia, B. and Vegas, A. L. Garcia and Gemmeke, H. and Gesualdi, F. and Gherghel-Lascu, A. and Ghia, P. L. and Giaccari, U. and Giammarchi, M. and Glombitza, J. and Gobbi, F. and Gollan, F. and Golup, G. and Gomez Berisso, M. and Gomez Vitale, P. F. and Gongora, J. P. and Gonzalez, J. M. and Gonzalez, N. and Goos, and Gora, D. and Gorgi, A. and Gottowik, M. and Grubb, T. D. and Guarino, F. and Guedes, G. P. and Guido, E. and Hahn, S. and Hamal, P. and Hampel, M. R. and Hansen, P. and Harari, D. and Harvey, V. M. and Hebbeker, T. and Heck, D. and Hojvat, C. and Horandel, J. R. and Horvath, P. and Hrabovsky, M. and Huege, T. and Insolia, A. and Isar, P. G. and Janecek, P. and Johnsen, J. A. and Jurysek, J. and Kaapa, A. and Kampert, K. H. and Karastathis, N. and Keilhauer, B. and Khakurdikar, A. and Kizakke Covilakam, V. V. and Klages, H. O. and Kleifges, M. and Kleinfeller, J. and Knapp, F. and Kunka, N. and Lago, B. L. and Lang, R. G. and Langner, N. and Leigui De Oliveira, M. A. and Lenok, and Letessier-Selvon, A. and Lhenry-Yvon, and Lo Presti, D. and Lopes, L. and Lopez, R. and Lu, L. and Luce, Q. and Lundquist, J. P. and Payeras, A. Machado and Mancarella, G. and Mandat, D. and Manning, B. C. and Manshanden, J. and Mantsch, P. and Marafico, S. and Mariani, F. M. and Mariazzi, A. G. and Marsella, G. and Martello, D. and Martinelli, S. and Martinez Bravo, O. and Mastrodicasa, M. and Mathes, H. J. and Matthews, J. and Matthiae, G. and Mayotte, E. and Mayotte, S. and Mazur, P. O. and Medina-Tanco, G. and Melo, D. and Menshikov, A. and Michal, S. and Micheletti, M. and Miramonti, L. and Mollerach, S. and Montanet, F. and Morejon, L. and Morello, C. and Mostafa, M. and Mueller, A. L. and Muller, M. A. and Mulrey, K. and Mussa, R. and Muzio, M. and Namasaka, W. M. and Nasr-Esfahani, A. and Nellen, L. and Nicora, G. and Niculescu-Oglinzanu, M. and Niechciol, M. and Nitz, D. and Nosek, D. and Novotny, and Nozka, L. and Nucita, A. and Nunez, L. A. and Oliveira, C. and Palatka, M. and Pallotta, J. and Papenbreer, P. and Parente, G. and Parra, A. and Pawlowsky, J. and Pech, M. and Pelayo, R. and Pena-Rodriguez, J. and Pereira Martins, E. E. and Armand, J. Perez and Perez Bertolli, C. and Perlin, M. and Perrone, L. and Petrera, S. and Petrucci, C. and Pierog, T. and Pimenta, M. and Pirronello, and Platino, M. and Pont, B. and Pothast, M. and Privitera, P. and Prouza, M. and Puyleart, A. and Querchfeld, S. and Rautenberg, J. and Ravignani, D. and Reininghaus, M. and Ridky, J. and Riehn, F. and Risse, M. and Rizi, and De Carvalho, W. Rodrigues and Rodriguez Rojo, J. and Roncoroni, M. J. and Rossoni, S. and Roth, M. and Roulet, E. and Rovero, A. C. and Ruehl, P. and Saftoiu, A. and Saharan, M. and Salamida, F. and Salazar, H. and Salina, G. and Sanabria Gomez, J. D. and Sanchez, F. and Santos, E. M. and Santos, E. and Sarazin, F. and Sarmento, R. and Sarmiento-Cano, C. and Sato, R. and Savina, P. and Schafer, C. M. and Scherini, and Schieler, H. and Schimassek, M. and Schimp, M. and Schluter, F. and Schmidt, D. and Scholten, O. and Schoorlemmer, H. and Schovanek, P. and Schulte, J. and Schulz, T. and Sciutto, S. J. and Scornavacche, M. and Segreto, A. and Sehgal, S. and Shellard, R. C. and Sigl, G. and Silli, G. and Sima, O. and Smau, R. and Smida, R. and Sommers, P. and Soriano, J. F. and Squartini, R. and Stadelmaier, M. and Stanca, D. and Stassi, P. and Streich, A. and Suarez-Duran, M. and Sudholz, T. and Suomijarvi, T. and Supanitsky, A. D. and Szadkowski, Z. and Tapia, A. and Taricco, C. and Timmermans, C. and Tkachenko, O. and Tobiska, P. and Todero Peixoto, C. J. and Tome, B. and Torres, Z. and Travaini, A. and Travnicek, P. and Trimarelli, C. and Tueros, M. and Ulrich, R. and Unger, M. and Vaclavek, L. and Vacula, M. and Valdes Galicia, J. F. and Valore, L. and Varela, E. and Vasquez-Ramirez, A. and Ventura, C. and Vergara Quispe, I. D. and Verzi, V. and Vicha, J. and Vink, J. and Vorobiov, S. and Wahlberg, H. and Watanabe, C. and Watson, A. A. and Wiencke, L. and Wittkowski, D. and Wundheiler, B. and Yushkov, A. and Zapparrata, O. and Zas, E. and Zavrtanik, D. and Zavrtanik, M. and Zehrer, L. and Abu-Zayyad, T. and Allen, M. and Arai, Y. and Arimura, R. and Barcikowski, E. and Belz, J. W. and Bergman, D. R. and Blake, S. A. and Buckland, and Cady, R. and Cheon, B. G. and Chiba, J. and Chikawa, M. and Fujisue, K. and Fujita, K. and Fujiwara, R. and Fukushima, M. and Fukushima, R. and Furlich, G. and Globus, N. and Gonzalez, R. and Hanlon, W. and Hayashi, M. and Hayashida, N. and He, H. and Hibino, K. and Higuchi, R. and Honda, K. and Ikeda, D. and Inadomi, T. and Inoue, N. and Ishii, T. and Ito, H. and Ivanov, D. and Iwakura, H. and Iwasaki, A. and Jeong, H. M. and Jeong, S. and Jui, C. C. H. and Kadota, K. and Kakimoto, F. and Kalashev, O. and Kasahara, K. and Kasami, S. and Kawakami, S. and Kawana, S. and Kawata, K. and Kharuk, and Kido, E. and Kim, H. B. and Kim, J. H. and Kim, S. W. and Kimura, Y. and Kishigami, S. and Kubota, Y. and Kurisu, S. and Kuzmin, and Kuznetsov, M. and Kwon, Y. J. and Lee, K. H. and Lubsandorzhiev, B. and Machida, K. and Matsumiya, H. and Matsuyama, T. and Matthews, J. N. and Mayta, R. and Minamino, M. and Mukai, K. and Myers, and Nagataki, S. and Nakai, K. and Nakamura, R. and Nakamura, T. and Nakamura, Y. and Nakazawa, A. and Nishio, E. and Nonaka, T. and Oda, H. and Ogio, S. and Ohnishi, M. and Ohoka, H. and Oku, Y. and Okuda, T. and Omura, Y. and Ono, M. and Onogi, R. and Oshima, A. and Ozawa, S. and Park, I. H. and Potts, M. and Pshirkov, M. S. and Remington, J. and Rodriguez, D. C. and Rubtsov, G. and Ryu, D. and Sagawa, H. and Sahara, R. and Saito, Y. and Sakaki, N. and Sako, T. and Sakurai, N. and Sano, K. and Sato, K. and Seki, T. and Sekino, K. and Shah, P. D. and Shibasaki, Y. and Shibata, F. and Shibata, N. and Shibata, T. and Shimodaira, H. and Shin, B. K. and Shin, H. S. and Shinto, D. and Smith, J. D. and Sokolsky, P. and Sone, N. and Stokes, B. T. and Stroman, T. A. and Takagi, Y. and Takahashi, Y. and Takamura, M. and Takeda, M. and Takeishi, R. and Taketa, A. and Takita, M. and Tameda, Y. and Tanaka, H. and Tanaka, K. and Tanaka, M. and Tanoue, Y. and Thomas, S. B. and Thomson, G. B. and Tinyakov, P. and Tkachev, and Tokuno, H. and Tomida, T. and Troitsky, S. and Tsuda, R. and Tsunesada, Y. and Uchihori, Y. and Udo, S. and Uehama, T. and Urban, F. and Warren, D. and Wong, T. and Yamamoto, M. and Yamazaki, K. and Yashiro, K. and Yoshida, F. and Yoshioka, Y. and Zhezher, Y. and Zundel, Z.},
doi = {10.3847/1538-4357/ac6def},
faupublication = {yes},
journal = {Astrophysical Journal},
note = {CRIS-Team WoS Importer:2022-08-26},
peerreviewed = {Yes},
title = {{Search} for {Spatial} {Correlations} of {Neutrinos} with {Ultra}-high-energy {Cosmic} {Rays}},
volume = {934},
year = {2022}
}
@inproceedings{faucris.107712264,
abstract = {Due to symmetry-breaking at an interface, Second Harmonic Generation (SHG) is an extremely surface sensitive process. Therefore it is a widely used tool to study surfaces. Applied to colloidal nanoparticles it offers efficient means to monitor growth and molecular adsorption processes in real time and in situ. This makes SHG a preferred method to study the formation of core-shell plasmonic nanoparticles, which recently became quite popular because of their strong and tunable plasmonic resonances.},
author = {Peukert, Wolfgang and Wunderlich, Sarina and Zhuromskyy, Oleksandr and Schürer, Benedikt and Haderlein, Michael and Sauerbeck, Christian and Peschel, Ulf},
booktitle = {2012 Conference on Lasers and Electro-Optics (CLEO)},
date = {2012-05-06/2012-05-11},
doi = {10.1364/QELS.2012.QTu1F.4},
faupublication = {yes},
isbn = {9781467318396},
keywords = {Symmetry; spherical; nanoparticle; second; harmonic; generation; plasmon; Optical; surface; wave; Harmonic analysis; Plasmons; Frequency conversion; Dielectrics;},
peerreviewed = {Yes},
publisher = {IEEE},
title = {{Second} {Harmonic} {Generation} from metallic and dielectric spherical nanoparticles},
venue = {San Jose, CA},
year = {2012}
}
@article{faucris.108631864,
abstract = {Optical second harmonic generation (SHG) was applied to study the shell layer of spherical polyelectrolyte brushes (SPB) as a function of ionic strength. The particles consist of a polystyrene core from which linear chains of a quenched polyelectrolyte are grafted. Compared to all systems studied by SHG previously, the shell layer in this study has a remarkable thickness of ca. 100 nm. Angle-resolved second harmonic (SH) scattering profiles were recorded and compared to simulations with different model geometries using a nonlinear Mie scattering model. The analysis reveals that the second harmonic signal is not generated by the polyelectrolyte molecules, but rather by oriented and polarized water molecules at the inner (polystyrene / polyelectrolyte) and at the outer (polyelectrolyte / solvent) interface of the polyelectrolyte shell. The results demonstrate that angle-resolved SH light scattering provides direct access to the structure of water and the screening of charges at the inner and outer interface of the polyelectrolyte shell. Correspondingly, this work sets the experimental and theoretical basis for the study of the extended interfacial layer of electrosterically stabilized particles by SH light scattering.},
author = {Peukert, Wolfgang and Schürer, Benedikt and Hoffmann, Martin and Wunderlich, Sarina and Peschel, Ulf and Harnau, Ludger and Ballauf, Matthias},
doi = {10.1021/jp2064547},
faupublication = {yes},
journal = {Journal of Physical Chemistry C},
keywords = {optical; second; harmonic; generation; particle; polyelectrolyte;},
pages = {18302-18309},
peerreviewed = {Yes},
title = {{Second} {Harmonic} {Light} {Scattering} from {Spherical} {Polyelectrolyte} {Brushes}},
volume = {115},
year = {2011}
}
@article{faucris.216188843,
abstract = {Spontaneous parametric down-conversion (SPDC) has been one of the foremost tools in quantum optics for over five decades. Over that time, it has been used to demonstrate some of the curious features that arise from quantum mechanics. Despite the success of SPDC, its higher-order analogs have never been observed, even though it has been suggested that they generate far more unique and exotic states than SPDC. An example of this is the emergence of non-Gaussian states without the need for postselection. Here we calculate the expected rate of emission for nth-order SPDC with and without external stimulation (seeding). Focusing primarily on third-order parametric down-conversion, we estimate the photon detection rates in a rutile crystal for both the unseeded and seeded regimes.},
author = {Okoth, Cameron and Cavanna, Andrea and Joly, Nicolas and Chekhova, Maria},
doi = {10.1103/PhysRevA.99.043809},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2019-04-18},
peerreviewed = {Yes},
title = {{Seeded} and unseeded high-order parametric down-conversion},
volume = {99},
year = {2019}
}
@inproceedings{faucris.107126844,
abstract = {The connective tissue between fat and muscle termed fascia has been of interest to the recent clinical and biological research. However, in the canine and human medicine, the anatomic knowledge is still limited. To analyze the superficial fascia in canine medicine, a database with around 200 ultrasound images of one dog has been created. The superficial fascia contains fat compartments and is closely connected to the surrounding structures such as the skin's dermis and the epimysium of the muscles. This work proposes a semi-automatic and fully-automatic segmentation algorithm separating the different layers of ultrasound images of canines. Both algorithms were evaluated on a set of 24 expert-labeled images achieving high accuracy scores up to 95.9},
address = {Berlin, Heidelberg},
author = {Rybakov, Oleksiy and Stromer, Daniel and Mischewski, Irina and Maier, Andreas},
booktitle = {Bildverarbeitung für die Medizin 2018 (BVM 2018)},
date = {2018-03-11/2018-03-13},
doi = {10.1007/978-3-662-56537-7{\_}69},
faupublication = {yes},
isbn = {978-3-662-56537-7},
keywords = {fascia; segmentation; ultrasound; canine; fat; open-source; GUI},
pages = {6},
peerreviewed = {Yes},
publisher = {Springer Vieweg},
title = {{Segmentation} of {Fat} and {Fascias} in {Canine} {Ultrasound} {Images}},
url = {https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2018/Rybakov18-SOF.pdf},
venue = {Hörsäle Medizin Kleiner Hörsaal Ulmenweg 18 91054 Erlangen},
year = {2018}
}
@article{faucris.106854484,
abstract = {Vertically aligned hexagonal InN nanorods were grown mask-free by conventional metal organic vapor phase epitaxy without any foreign catalyst. The In droplets on top of the nanorod's indicate a self-catalytic vapor liquid solid growth mode. A systematic study on important growth parameters has been carried out for the optimization of nanorod morphology. The nanorod N-polarity, induced by high temperature nitridation of the sapphire substrate, IS necessary to achieve vertical growth. Hydrogen, usually inapplicable during InN growth due to formation of metallic indium, and silane are needed to enhance the aspect ratio and to reduce parasitic deposition beside the nanorods on the sapphire surface. The results reveal many similarities between InN and GaN nanorod growth showing that the process despite the large difference in growth temperature is similar. Transmission electron microscopy, spatially resolved energy-dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy have been performed to analyze the structural properties. Spatially resolved cathodoluminescence investigations are carried out to verify the optical activity of the InN nanorods. The InN nanorods are expected to be the material of choice for high-efficiency hot carrier solar cells.},
author = {Tessarek, C. and Fladischer, Stefanie and Dieker, Christel and Sarau, G. and Hoffmann, Björn and Bashouti, M. and Goebelt, M. and Heilmann, M. and Latzel, Michael and Butzen, E. and Figge, S. and Gust, A. and Hoeflich, K. and Feichtner, T. and Buechele, M. and Schwarzburg, K. and Spiecker, Erdmann and Christiansen, S. and Göbelt, Manuela},
doi = {10.1021/acs.nanolett.5b03889},
faupublication = {yes},
journal = {Nano Letters},
keywords = {InN;nanorods;MOVPE;growth;vapor-liquid-solid;cathodoluminescence},
pages = {3415-3425},
peerreviewed = {Yes},
title = {{Self}-{Catalyzed} {Growth} of {Vertically} {Aligned} {InN} {Nanorods} by {Metal}-{Organic} {Vapor} {Phase} {Epitaxy}},
volume = {16},
year = {2016}
}
@inproceedings{faucris.122509464,
author = {Leuchs, Gerd and et al.},
author_hint = {Spälter S., Böhm M., Mikulla B., Fluck R., Jung I. D., Zhang G., Sizmann A., Keller U., Leuchs Gerd},
booktitle = {PDP oral presentation},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.nat.dphy.optik.1optik.selfst},
pages = {?},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Self}-starting soliton modelocked femtosecond {Chromium} {YAG} laser using an antiresonant {Fabry}-{Perot} saturable absorber},
venue = {Hamburg, Germany},
year = {1996}
}
@article{faucris.110576444,
abstract = {We set up a self-starting passively modelocked femtosecond Cr(4+):YAG laser using a low-finesse antiresonant Fabry-Pérot saturable absorber (A-FPSA). Stable transform-limited pulses were produced without the critical cavity alignment necessary for Kerr lens modelocking. We achieved 114-fs pulses with 94 mW output power at the telecommunication wavelength 1.5 μm. The pulse formation is demonstrated to be due to soliton modelocking. At higher intracavity energy multiple pulsing was observed and is explained by the saturation behaviour of the A-FPSA. In the multipulsing regime a pulse width as short as 95 fs and an averaged output power of up to 395 mW have been obtained. © Springer-Verlag 1997.},
author = {Leuchs, Gerd and et al.},
author_hint = {Spälter S., Böhm M., Burk M., Mikulla B., Fluck R., Jung I. D., Zhang G., Keller U., Sizmann A., Leuchs Gerd},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-05:Pub.1997.nat.dphy.optik.1optik.selfst},
pages = {335-338},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Self}-{Starting} {Soliton}-modelocked {Femtosecond} {Cr}(4+):{YAG} {Laser} {Using} an {Antiresonant} {Fabry}-{Perot} {Saturable} {Absorber}},
volume = {65},
year = {1997}
}
@article{faucris.249334455,
abstract = {We report the experimental and numerical observation of oscillatory antiphase switching between counterpropagating light beams in Kerr ring microresonators, where dominance between the intensities of the two beams is periodically or chaotically exchanged. Self-switching occurs in balanced regimes of operation and is well captured by a simple coupled dynamical system featuring only the self- and cross-phase Kerr nonlinearities. Switching phenomena are due to temporal instabilities of symmetry-broken states combined with attractor merging, which restores the broken symmetry on average. Self-switching of counterpropagating light is robust for realizing controllable, all-optical generation of waveforms, signal encoding, and chaotic cryptography.},
author = {Woodley, Michael T.M. and Hill, Lewis and Del Bino, Leonardo and Oppo, Gian Luca and Del'Haye, Pascal},
doi = {10.1103/PhysRevLett.126.043901},
faupublication = {yes},
journal = {Physical Review Letters},
month = {Jan},
note = {CRIS-Team Scopus Importer:2021-02-12},
peerreviewed = {Yes},
title = {{Self}-{Switching} {Kerr} {Oscillations} of {Counterpropagating} {Light} in {Microresonators}},
volume = {126},
year = {2021}
}
@article{faucris.241527223,
abstract = {Recently, a new path integral formulation of loop quantum gravity (LQG) has been derived in M. Han and H. Liu, Phys. Rev. D 101, 046003 (2020). from the reduced phase space formulation of the canonical LQG. This paper focuses on the semiclassical analysis of this path integral formulation. We show that dominant contributions of the path integral come from solutions of semiclassical equations of motion (EOMs), which reduce to Hamilton's equations of holonomies and fluxes h(e), p(a)(e) in the reduced phase space P-gamma of the cubic lattice gamma: dh(e)/d tau = {h(e), H}, dp(a)(e)/d tau = {p(a)(e), H}, where H is the discrete physical Hamiltonian. The semiclassical dynamics from the path integral becomes an initial value problem of Hamiltonian time evolution in P-gamma. Moreover when we take the continuum limit of the lattice gamma, these Hamilton's equations reproduce correctly classical reduced phase space EOMs of gravity coupled to dust fields in the continuum, as far as initial and final states are semiclassical. Our result proves that the new path integral formulation has the correct semiclassical limit and indicates that the reduced phase space quantization in LQG is semiclassically consistent. Based on these results, we compare this path integral formulation and the spin foam formulation, and show that this formulation has several advantages including the finiteness, the relation with canonical LQG, and the freedom from cosine and flatness problems.},
author = {Han, Muxin and Liu, Hsuan-Wei},
doi = {10.1103/PhysRevD.102.024083},
faupublication = {yes},
journal = {Physical Review D - Particles, Fields, Gravitation and Cosmology},
note = {CRIS-Team WoS Importer:2020-08-14},
peerreviewed = {Yes},
title = {{Semiclassical} limit of new path integral formulation from reduced phase space loop quantum gravity},
volume = {102},
year = {2020}
}
@article{faucris.108764084,
abstract = {We report on the realization of an open plane-concave Fabry-Perot resonator with a mode volume below λ3 at optical frequencies. We discuss some of the less-common features of this microcavity regime and show that the ultrasmall mode volume allows us to detect cavity resonance shifts induced by single nanoparticles even at quality factors as low as 100. Being based on low-reflectivity micromirrors fabricated on a silicon cantilever, our experimental arrangement provides broadband operation, tunability of the cavity resonance, and lateral scanning. These features are interesting for a range of applications including biochemical sensing, modification of photophysics, and optomechanical studies.},
author = {Kelkar, Hrishikesh and Wang, Daqing and Martin-Cano, Diego and Hoffmann, Björn and Christiansen, Silke and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1103/PhysRevApplied.4.054010},
faupublication = {yes},
journal = {Physical Review Applied},
peerreviewed = {unknown},
title = {{Sensing} nanoparticles with a cantilever-based scannable optical cavity of low finesse and sub- λ3 volume},
volume = {4},
year = {2015}
}
@article{faucris.223108895,
abstract = {We prepared qudits based on angular multimode biphoton states by modulating the pump angular spectrum. The modes were prepared in the Schmidt basis and their intensity distributions did not overlap in space. This allows one to get rid of filtering losses while addressing single modes and to realize a single-shot qudit readout.},
author = {Borshchevskaia, N. A. and Just, F. and Katamadze, K. G. and Cavanna, Andrea and Chekhova, Maria},
doi = {10.1088/1612-202X/ab27b5},
faupublication = {yes},
journal = {Laser Physics Letters},
note = {CRIS-Team WoS Importer:2019-07-26},
peerreviewed = {Yes},
title = {{Separated} {Schmidt} modes in the angular spectrum of biphotons},
volume = {16},
year = {2019}
}
@article{faucris.247446660,
abstract = {High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the ultraviolet to the terahertz would offer unprecedented versatility and opportunities for a wide range of applications from bio-chemical sensing(1) to time-resolved and nonlinear spectroscopy, and to attosecond light-wave electronics(2,3). Combinations of various sources with frequency conversion(4,5) and supercontinuum generation(6-9) can provide relatively large spectral coverage, but many applications require a much broader spectral range(10) and low-jitter synchronization for time-domain measurements(11). Here, we present a carrier-envelope-phase (CEP)-stable light source, seeded by a mid-infrared frequency comb(12,13), with simultaneous spectral coverage across seven optical octaves, from the ultraviolet (340 nm) into the terahertz (40,000 nm). Combining soliton self-compression and dispersive wave generation in an anti-resonant-reflection photonic-crystal fibre with intra-pulse difference frequency generation in BaGa2GeSe6, the spectral brightness is two to five orders of magnitude above that of synchrotron sources. This will enable high-dynamic-range spectroscopies and provide numerous opportunities in attosecond physics and material sciences(14,15).},
author = {Elu, Ugaitz and Maidment, Luke and Vamos, Lenard and Tani, Francesco and Novoa, David and Frosz, Michael H. and Badikov, Valeriy and Badikov, Dmitrii and Petrov, Valentin and Russell, Philip St. John and Biegert, Jens},
doi = {10.1038/s41566-020-00735-1},
faupublication = {yes},
journal = {Nature Photonics},
note = {CRIS-Team WoS Importer:2021-01-01},
peerreviewed = {Yes},
title = {{Seven}-octave high-brightness and carrier-envelope-phase-stable light source},
year = {2020}
}
@inproceedings{faucris.267486449,
abstract = {We present a carrier-envelope-phase stable light source with simultaneous spectral coverage across 7 optical octaves (UV to THz) by combining soliton self-compression, dispersive wave generation and intra-pulse difference frequency generation.},
author = {Elu, Ugaitz and Maidment, Luke and Vamos, Lenard and Tani, Francesco and Novoa, David and Frosz, Michael H. and Badikov, Valeriy and Badikov, Dmitrii and Petrov, Valentin and Russell, Philip St. John and Biegert, Jens},
booktitle = {2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings},
date = {2021-05-09/2021-05-14},
faupublication = {yes},
isbn = {9781943580910},
note = {CRIS-Team Scopus Importer:2021-12-24},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Seven}-{Octave} {High}-{Brightness} and {Carrier} {Envelope} {Phase}-{Stable} {Light} {Source}},
venue = {Virtual},
year = {2021}
}
@inproceedings{faucris.266776131,
abstract = {We present an ultra-bright carrier-envelope-phase-stable light source spanning seven octaves (340 nm to 40 000 nm) simultaneously by combining soliton self-compression, dispersive wave generation, and intra-pulse difference frequency generation in a newly-developed nonlinear crystal.},
author = {Enders, Michael T. and Elu, Ugaitz and Maidment, Luke and Vamos, Lenard and Tani, Francesco and Novoa, David and Frosz, Michael H. and Badikov, Valeriy and Badikov, Dimitrii and Petrov, Valentin and Russell, Philip St. John and Biegert, Jens},
booktitle = {Optics InfoBase Conference Papers},
date = {2021-08-09/2021-08-13},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-12-03},
peerreviewed = {unknown},
publisher = {The Optical Society},
title = {{Seven}-octave ultra-bright pulse generation},
venue = {Virtual},
year = {2021}
}
@article{faucris.237247526,
abstract = {Deep subwavelength localization and displacement sensing of optical nanoantennas have emerged as extensively pursued objectives in nanometrology, where focused beams serve as high-precision optical rulers while the scattered light provides an optical readout. Here, we show that in these schemes using an optical excitation as a position gauge implies that the sensitivity to displacements of a nanoantenna depends on the spatial gradients of the excitation field. Specifically, we explore one of such novel localization schemes based on the appearance of transversely spinning fields in strongly confined optical beams, resulting in far-field segmentation of left- and right-hand circular polarizations of the scattered light, an effect known as the giant spin-Hall effect of light. We construct vector beams with an augmented transverse spin density gradient in the focal plane and experimentally confirm enhanced sensitivity of the far-field spin segmentation to lateral displacements of an electric-dipole nanoantenna. We conclude that sculpturing of electromagnetic field gradients and intelligent design of scatterers pave the way toward further improvements in displacement sensitivity.},
author = {Nechayev, Sergey and Eismann, Jörg and Neugebauer, Martin and Banzer, Peter},
doi = {10.1021/acsphotonics.9b01720},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {displacement sensing; localization; nanoantennas; tight focusing; transverse spin},
note = {CRIS-Team Scopus Importer:2020-04-14},
pages = {581-587},
peerreviewed = {Yes},
title = {{Shaping} {Field} {Gradients} for {Nanolocalization}},
volume = {7},
year = {2020}
}
@article{faucris.115990204,
abstract = {The influence of polarization on the shape of the focal spot was discussed. The focal intensity distribution for radially and azimuthally polarized input fields was compared to analyze the effect of vector properties of light. A radially polarization field led to a longitudinal electric field component for strong focusing. The results show that the radially polarized light beam was focused to a spot size significantly smaller than for linear polarization.},
author = {Leuchs, Gerd and et al.},
author_hint = {Dorn Ralf, Quabis Susanne, Leuchs Gerd},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.sharpe},
pages = {233901},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Sharper} {Focus} for a radially polarized light beam},
volume = {91},
year = {2003}
}
@article{faucris.122961344,
abstract = {We discuss and measure the phase shift imposed onto a radially polarized light beam when focusing it onto an Yb ion. In the derivation of the expected phase shifts, we include the properties of the involved atomic levels. Furthermore, we emphasize the importance of the scattering cross section and its relation to the efficiency for coupling the focused light to an atom. The phase shifts found in the experiment are compatible with the expected ones when accounting for known deficiencies of the focusing optics and the motion of the trapped ion at the Doppler limit of laser cooling (Hänsch and Schawlow in Opt Commun 13:68–69, 1975).},
author = {Fischer, Martin and Srivathsan, Bharath and Alber, Lucas and Weber, Markus and Sondermann, Markus and Leuchs, Gerd},
doi = {10.1007/s00340-016-6609-3},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
peerreviewed = {Yes},
title = {{Shifting} the phase of a coherent beam with a {174Yb}+ ion: influence of the scattering cross section},
volume = {123},
year = {2017}
}
@article{faucris.213242849,
abstract = {Nanotextured surfaces provide an ideal platform for efficiently capturing and emitting light. However, the increased surface area in combination with surface defects induced by nanostructuring e.g. using reactive ion etching (RIE) negatively affects the device's active region and, thus, drastically decreases device performance. In this work, the influence of structural defects and surface states on the optical and electrical performance of InGaN/GaN nanorod (NR) light emitting diodes (LEDs) fabricated by top-down RIE of c-plane GaN with InGaN quantum wells was investigated. After proper surface treatment a significantly improved device performance could be shown. Therefore, wet chemical removal of damaged material in KOH solution followed by atomic layer deposition of only 10 nm alumina as wide bandgap oxide for passivation were successfully applied. Raman spectroscopy revealed that the initially compressively strained InGaN/GaN LED layer stack turned into a virtually completely relaxed GaN and partially relaxed InGaN combination after RIE etching of NRs. Time-correlated single photon counting provides evidence that both treatments---chemical etching and alumina deposition---reduce the number of pathways for non-radiative recombination. Steady-state photoluminescence revealed that the luminescent performance of the NR LEDs is increased by about 50% after KOH and 80% after additional alumina passivation. Finally, complete NR LED devices with a suspended graphene contact were fabricated, for which the effectiveness of the alumina passivation was successfully demonstrated by electroluminescence measurements.},
author = {Latzel, Michael and Buettner, P. and Sarau, George and Hoeflich, K. and Heilmann, M. and Chen, Weijian and Wen, X. and Conibeer, Gavin and Christiansen, S. H.},
doi = {10.1088/1361-6528/28/5/055201},
faupublication = {yes},
journal = {Nanotechnology},
note = {EAM Import::2019-03-13},
peerreviewed = {unknown},
title = {{Significant} performance enhancement of {InGaN}/{GaN} nanorod {LEDs} with multi-layer graphene transparent electrodes by alumina surface passivation},
volume = {28},
year = {2017}
}
@article{faucris.206969491,
abstract = {Dielectric laser accelerators (DLAs) have proven to be good candidates
for miniaturized particle accelerators. They rely on micro-fabricated
dielectrics which are able to modulate the kinetic energy of the
incoming electron beam under a proper laser illumination. In this paper
we demonstrate a dual pillar structure with a distributed Bragg
reflector to mimic a double sided illumination to the electron path. The
structure is fabricated by an electron beam lithography technique
followed by a cryogenic reactive ion etching process. Such a structure
can accelerate the injected 28 keV electrons by a gradient of
approximately 150 MeV/m which can be further optimized towards the GeV/m
regim},
author = {Yousefi, Peyman and McNeur, Joshua and Kozak, Martin and Niedermayer, Uwe and Gannott, Florentina and Lohse, Olga and Boine-Frankenheim, Oliver and Hommelhoff, Peter},
doi = {10.1016/j.nima.2018.01.065},
faupublication = {yes},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
keywords = {Dielectric laser accelerators; Dual pillar structure; Distributed Bragg reflector ;Electron beam lithography; Cryogenic reactive ion etching},
month = {Jan},
pages = {221-223},
peerreviewed = {Yes},
title = {{Silicon} dual pillar structure with a distributed {Bragg} reflector for dielectric laser accelerators: {Design} and fabrication},
url = {https://arxiv.org/abs/1801.05234},
year = {2018}
}
@inproceedings{faucris.120027864,
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Haselbeck S., Schwider Johannes},
booktitle = {EOS Topical Meetings Digest Series},
faupublication = {yes},
note = {UnivIS-Import:2015-03-05:Pub.1995.nat.dphy.optik.1optik.simpli},
pages = {7-10},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Simplified} theory for ellipsoidal melted microlenses},
volume = {5},
year = {1995}
}
@inproceedings{faucris.288237346,
abstract = {Simulating an Interacting Quantum Gas with Superconducting Circuits The high level of control achievable over quantized degrees of freedom have turned superconducting circuits into one of the prime physical architectures for quantum computing and simulation. While conventional approaches towards quantum information processing mostly rely on unitary time evolution, more recently open-system dynamics are considered for quantum simulations. In this talk, I will present experiments in which we use an open cavity QED system with tunable interactions to simulate the ground state of an interacting Bose gas confined in one dimension [1,2]. These experiments rely on the ability to efficiently measure higher order photon corrélations of the cavity output field. For this purpose we have developed a quantum limited amplifier achieving phase-preserving amplification at large bandwidth and high dynamic range [3]. Our results explore a different path towards the simulation of complex quantum many-body physics based on the controlled generation and detection of nonclassical radiation in an open quantum system. [1] S. Barrett et al., Phys. Rev. Lett. 110, 090501 (2013). [2] F. Verstraete and J. I. Cirac, Phys. Rev. Lett. 104, 190405 (2010). [3] C. Eichler et al., Phys. Rev. Lett. 113, 110502 (2014).},
address = {University of Sherbrooke, Canada},
author = {Eichler, Christopher},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Simulating} an interacting quantum gas with superconducting circuits},
year = {2014}
}
@inproceedings{faucris.288246647,
address = {San Antonio, Texas, USA},
author = {Eichler, Christopher and et al.},
author_hint = {Eichler C., Mlynek J., Butscher J., Kurpiers P., Osborne T., Wallraff A.},
booktitle = {APS March Meeting},
date = {2015-03-02},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Simulating} an {Interacting} {Quantum} {Gas} with {Superconducting} {Circuits}},
url = {http://www.aps.org/meetings/march/},
venue = {San Antonio, Texas, USA},
year = {2015}
}
@article{faucris.108134884,
abstract = {In this paper we investigate the close relationship between Dicke superradiance, originally predicted for an ensemble of two-level atoms in entangled states, and the Hanbury Brown and Twiss effect, initially established in astronomy to determine the dimensions of classical light sources such as stars. By studying the state evolution of the fields produced by classical sources-defined by a positive Glauber-Sudarshan P function-when recording intensity correlations of higher order in a generalized Hanbury Brown and Twiss setup we find that the angular distribution of the last detected photon, apart from an offset, is identical to the superradiant emission pattern generated by an ensemble of two-level atoms in entangled symmetric Dicke states. We show that the phenomenon derives from projective measurements induced by the measurement of photons in the far field of the sources and the permutative superposition of quantum paths identical to those leading to superradiance in the case of single photon emitters. We thus point out an important similarity between classical sources and quantum emitters upon detection of photons if the particular photon source remains unknown. We finally present a compact result for the characteristic functional which generates intensity correlations of arbitrary order for any kind of light sourc},
author = {Bhatti, Daniel and Oppel, Steffen and Wiegner, Ralph and Agarwal, Girish and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.94.013810},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Simulating} {Dicke}-like superradiance with classical light sources},
volume = {94},
year = {2016}
}
@article{faucris.109061304,
abstract = {Superradiance typically requires preparation of atoms in highly entangled multiparticle states, the so-called Dicke states. In this paper we discuss an alternative route where we prepare such states from initially uncorrelated atoms by a measurement process. By measuring higher-order intensity-intensity correlations we demonstrate that we can simulate the emission characteristics of Dicke superradiance by starting with atoms in the fully excited state. We describe the essence of the scheme by first investigating two excited atoms. Here we demonstrate how via Hanbury Brown and Twiss type of measurements we can produce Dicke superradiance and subradiance displayed commonly with two atoms in the single excited symmetric and antisymmetric Dicke states, respectively. We thereafter generalize the scheme to arbitrary numbers of atoms and detectors, and explain in detail the mechanism which leads to this result. The approach shows that the Hanbury Brown and Twiss type of intensity interference and the phenomenon of Dicke superradiance can be regarded as two sides of the same coin. We also present a compact result for the characteristic functional which generates all order intensity-intensity correlation},
author = {Wiegner, Ralph and Oppel, Steffen and Bhatti, Daniel and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1103/PhysRevA.92.033832},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Simulating} superradiance from higher-order-intensity-correlation measurements: {Single} atoms},
volume = {92},
year = {2015}
}
@article{faucris.119199564,
abstract = {We present a mathematical proof of the algorithm allowing one to generate all-symmetric and nonsymmetric-total angular momentum eigenstates in remote matter qubits by projective measurements, proposed in Maser et al. [Phys. Rev. A 79, 033833 (2009)]. By deriving a recursion formula for the algorithm we show that the generated states are equal to the total angular momentum eigenstates obtained via the usual quantum-mechanical coupling of angular momenta. In this way we demonstrate that the algorithm is able to simulate the coupling of N spin-1/2 systems, and to implement the required Clebsch-Gordan coefficients, even though the particles never directly interact with each othe},
author = {Ammon, C. and Maser, Andreas and Schilling, Uwe and Bastin, T. and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.86.052308},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Simulating} the coupling of angular momenta in distant matter qubits},
volume = {86},
year = {2012}
}
@article{faucris.204081880,
abstract = {We present a computer algorithm capable of simulating the photon stream and the corresponding temporal photon statistics of thermal light sources. The algorithm implements realistic experimental conditions, incorporating the relevant parameters of the source as well as of the detection process. The code is verified by comparing the temporal photon autocorrelation function computed from the simulations to the one measured with a real thermal light source. In view of the renewed interest for intensity interferometry in astronomy and the life sciences, such simulations become increasingly relevant. (C) 2018 Optical Society of America},
author = {Schneider, Raimund and Biernoth, Christoph and Hölzl, Johannes and Pscherer, Andre and von Zanthier, Joachim},
doi = {10.1364/AO.57.007076},
faupublication = {yes},
journal = {Applied Optics},
pages = {7076-7080},
peerreviewed = {Yes},
title = {{Simulating} the photon stream of a real thermal light source},
volume = {57},
year = {2018}
}
@inproceedings{faucris.121164604,
abstract = {Ultrakurze Laserpulse sind sowohl in Wissenschaft und Forschung als auch in der Industrie aufgrund ihrer extrem kurzen zeitlichen Breite und hohen Intensität vielseitig einsetzbar. Hierbei sind Pulsdauern, mit einer Hauptfrequenz innerhalb des sichtbaren Spektrums, in einem Bereich von wenigen Femtosekunden realisierbar. Bei der Fokussierung dieser Pulse durch Linsen mit kreisförmiger Apertur tritt ein sogenannter Vorläuferpuls auf, der sich hinter dem Fokuspunkt vom Hauptpuls separiert und mit scheinbar Überlichtgeschwindigkeit ausbreitet. Dies ist keine Verletzung der Kausalität, da der Vorläuferpuls nur eine Interferenzerscheinung ist und keine Energie ins Fernfeld trägt. Der Vorläuferpuls entsteht durch die Beugung des Pulses an der Apertur und verursacht eine „Verzerrung“ des elektrischen Feldes im Fokusbereich. Durch Simulation kann der Einfluss von Parametern wie Polarisation und numerischer Apertur (NA) auf die Geschwindigkeit, Form und Amplitude des Vorläuferpulses bestimmt werden. Hierfür wird das Debye-Integral unter Berücksichtigung der einzelnen Frequenzkomponenten des Pulses verwendet.},
author = {Dehne, Henry and Loosen, Florian and Iff, Wolfgang and Lindlein, Norbert},
booktitle = {Proceeding, 115. Jahrestagung der DGaO},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {DGaO},
title = {{Simulation} der {Vorläuferpulse} bei {Fokussierung} ultrakurzer optischer {Laserpulse}},
venue = {Karlsruhe},
volume = {115},
year = {2014}
}
@inproceedings{faucris.106129144,
abstract = {Die Forschergruppe OPTAVER (Optische Aufbau- und Verbindungstechnik für baugruppenintegrierte Bussysteme) beschäftigt sich seit ca. 3 Jahren mit dem Design, der Simulation und dem Druckprozess Polymer Optischer Wellenleiter (POWs). Durch den eingesetzten additiven 3D-Fertigungsprozess (Flexodruck und Aerosol Jet Druck) der Wellenleiterstrukturen wird eine optische Simulation vorab unumgänglich, um die Güte der Wellenleiter simulativ zu überprüfen. In den vergangenen DGaO-Jahrestagungen wurde neben der Erweiterung des Simulationsmodells um einen Streuansatz (Dämpfungsberechnung) [1] auch eine Erweiterung bezüglich der Signaldispersion [2] dem wissenschaftlichen Publikum vorgestellt. Dämpfung und Signaldispersion legen vor allem die Güte des Wellenleiters als wichtige Kenngrößen fest. Diese Güte ist abhängig von der Variation signifikanter Charakteristika, wie Wellenleiterform, -pfad und Materialeigenschaften, welche simulativ untersucht werden müssen, um daraus Kenngrößen für die Wellenleiter zu erhalten.
[1] F. Loosen et al. DGaO Proceedings C5 (2016)
[2] C. Backhaus et al. DGaO Proceedings P8 (201},
author = {Loosen, Florian and Backhaus, Carsten and Vögl, Christian and Lindlein, Norbert},
booktitle = {Proceeding, 119. DGaO-Jahrestagung},
editor = {DGaO},
faupublication = {yes},
peerreviewed = {unknown},
title = {{Simulationen} zur {Erfassung} der {Güte} gedruckter {Polymer} {Optischer} {Wellenleiter} ({POWs}) bei {Variation} signifikanter {Charakteristika}},
venue = {Aalen},
year = {2018}
}
@article{faucris.110687764,
abstract = {The optical analysis and design program RAYTRACE, which was developed at our institute, enables the simulation of micro-optical systems containing arrays of microlenses or other optical components. The most important features of the program are briefly described to show its broad application areas. A special simulation example showing the spot diagram and the intensity distribution in the focal plane of a simple Shack-Hartmann sensor with a diffractive microlens array for an incident aspherical wave is given. ©1998 Society of Photo-Optical Instrumentation Engineers.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Simon Frank, Schwider Johannes},
faupublication = {yes},
journal = {Optical Engineering},
keywords = {Micro-optics; Microlens arrays; Optical design software; Ray tracing Shack-Hartmann wavefront sensor},
note = {UnivIS-Import:2015-03-05:Pub.1998.nat.dphy.optik.1optik.simula},
pages = {1809-1816},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Simulation} of micro-optical array systems with {RAYTRACE}},
volume = {37},
year = {1998}
}
@article{faucris.115900884,
abstract = {The simulation of micro-optical systems, especially those including microlens arrays, is still a challenging task. There are of course traditional methods which can be applied under certain circumstances. This paper will discuss several geometrical optical and diffraction-based methods for the simulation of micro-optical systems. A simple paraxial geometrical optical matrix theory will be extended to the simulation of off-axis optical elements. Ray tracing will be used to model incoherent micro-optical systems. The propagation of Gaussian beams through off-axis optical systems using differential ray tracing will be discussed. The angular spectrum of plane waves will be used to propagate a scalar complex wave amplitude in free space simulating non-paraxial diffraction effects. Finally, a model will be proposed which combines ray tracing and wave propagation methods by converting a complex wave amplitude into rays and vice versa. In the case of wavefront warping a decomposition of the wave into elementary waves has to be performed. This combined model can take into account non-paraxial effects such as aberrations of optical elements and also diffraction effects.},
author = {Lindlein, Norbert},
doi = {10.1088/1464-4258/4/4/351},
faupublication = {yes},
journal = {Journal of Optics A-Pure and Applied Optics},
keywords = {Optical system design; Wave propagation; Wavefronts and ray tracing},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.simula},
pages = {1-9},
peerreviewed = {Yes},
title = {{Simulation} of micro-optical systems including microlens arrays},
volume = {4},
year = {2002}
}
@article{faucris.120349284,
abstract = {We investigate polarization squeezing of ultrashort pulses in optical fiber, over a wide range of input energies and fiber lengths. Comparisons are made between experimental data and quantum dynamical simulations to find good quantitative agreement. The numerical calculations, performed using both truncated Wigner and exact +P phase-space methods, include nonlinear and stochastic Raman effects, through coupling to phonon variables. The simulations reveal that excess phase noise, such as from depolarizing guided acoustic wave Brillouin scattering, affects squeezing at low input energies, while Raman effects cause a marked deterioration of squeezing at higher energies and longer fiber lengths. We also calculate the optimum fiber length for maximum squeezing. © 2008 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Corney Joel F., Heersink Joel, Dong Ruifang, Josse Vincent, Drummond Peter D., Leuchs Gerd, Andersen Ulrik L},
doi = {10.1103/PhysRevA.78.023831},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2008.nat.dphy.optik.1optik.simula},
pages = {023831},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Simulations} and experiments on polarization squeezing in optical fiber},
volume = {78},
year = {2008}
}
@inproceedings{faucris.108800384,
abstract = {Nowadays, ultrashort optical pulses have quite a few applications, e.g. in the measuring technology, in the processing of materials, and also in the medical science. Like in the stationary (continuous wave) case, secondary maxima appear in the focal plane, when optical pulses are focused by an aplanatic lens (without aberrations). These can be simulated by adding frequency dependent Debye integrals, where each of them can be considered as a superposition of plane waves travelling from the exit pupil to the focus. By changing the order of integrations this corresponds to a superposition of waves with plane wavefront, but time-dependent amplitude. The secondary maxima are highly dependent on the duration of the pulse. Depending on the parameters of the pulse and the lens, they have a maximum intensity at a certain duration, and seemingly vanish as the duration of the pulse grows shorter. The latter results from the fact, that at any non-axial point in the focal plane the amplitude of the envelope of some of these “plane waves” diminishes. Via simulations the effects of certain parameters, such as polarisation, numerical aperture, and initial amplitude profile can be analysed.},
author = {Fries, Sebastian and Loosen, Florian and Lindlein, Norbert},
booktitle = {Proceeding, 116. Jahrestagung der DGaO},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {DGaO},
title = {{Simulations} of the secondary maxima of highly focused ultrashort optical pulses in the focal plane},
venue = {Brno CZ},
volume = {116},
year = {2015}
}
@article{faucris.115163224,
abstract = {A diffractive grazing-incidence interferometer for the test of cylindrical lenses is described. Besides surface aberrations from the ideal shape, the interferometer allows for the simultaneous determination of the relative position and orientation of surfaces to another. The measurement principle as well as a classification of deviation types is given. Measurement results for planar concave lenses are presented. © 2005 Optical Society of America.},
author = {Mantel, Klaus Peter and Lindlein, Norbert and Schwider, Johannes},
doi = {10.1364/AO.44.002970},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-04-14:Pub.2005.nat.dphy.optik.1optik.simult},
pages = {2970-2977},
peerreviewed = {Yes},
title = {{Simultaneous} characterization of the quality and orientation of cylindrical lens surfaces},
volume = {44},
year = {2005}
}
@inproceedings{faucris.106421964,
abstract = {Novel algorithms in the field of X-ray imaging are commonly evaluated on simulation software first, before they are implemented on a clinical scanner in order to test their performance in a very controlled setup. This reduces patient dose and facilitates the development of new approaches and methods. In recent years, range imaging applications were established in the field of medical imaging. Range imaging showed its potential in radiotherapy, augmented reality, and, recently, also for motion correction in cone-beam computed tomography. In this work, we present an open-source software tool that allows to generate X-ray projections and surface information in one step completely on the graphics processing unit. To this end, we extend a state-of-the-art rendering method based on an append buffer. Arbitrary imaging geometries for the X-ray source and the range imaging camera can be selected. We test the proposed method on the XCAT phantom in two fundamentally different scenarios: a weight-bearing acquisition showing a squat, and a supine acquisition of a breathing patien},
author = {Rybakov, Oleksiy and Bier, Bastian and Maier, Jennifer and Unberath, Mathias and Maier, Andreas},
booktitle = {2017 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC)},
date = {2017-10-21/2017-11-28},
faupublication = {yes},
keywords = {range imaging; x-ray imaging; append buffer; weight-bearing; open-source; XCAT},
peerreviewed = {unknown},
title = {{Simultaneous} {Generation} of {X}-ray and {Range} {Images} using {XCAT} under {Motion}},
url = {https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2017/Rybakov17-SGO.pdf},
venue = {Atlanta, Georgia},
year = {2017}
}
@article{faucris.119983864,
abstract = {Optical components manipulating both polarization and phase of wave fields find many applications in today's optical systems. With modern lithography methods it is possible to fabricate optical elements with nanostructured surfaces from different materials capable of generating spatially varying, locally linearly polarized-light distributions, tailored to the application in question. Since such elements in general also affect the phase of the light field, the characterization of the function of such elements consists in measuring the phase and the polarization of the generated light, preferably at the same time. Here, we will present first results of an interferometric approach for a simultaneous and spatially resolved measurement of both phase and polarization, as long as the local polarization at any point is linear (e.g., for radially or azimuthally polarized light).},
author = {Rothau, Sergej and Kellermann, Christine and Nercissian, Vanusch and Berger, Andreas and Mantel, Klaus and Lindlein, Norbert and Lindlein, Norbert},
doi = {10.1364/AO.53.003125},
faupublication = {yes},
journal = {Applied Optics},
pages = {3125-3130},
peerreviewed = {Yes},
title = {{Simultaneous} measurement of phase and local orientation of linearly polarized light: {Implementation} and measurement results},
year = {2014}
}
@article{faucris.201120205,
abstract = {This paper presents a novel interferometric method for the simultaneous spatially resolved analysis of an object under test regarding the phase transmission function and the magnitude and orientation of the (uniaxial) birefringence. The measurement strategy is based on variations of the phase and polarization and processing the interference patterns so obtained. With this method, which is very similar to the classical phase-shifting interferometry, a complete analysis of birefringent properties of the object and its impact on the phase of the incoming light can be done in one measurement cycle. The theoretical description of the investigated methods and their experimental implementation are presented.},
author = {Rothau, Sergej and Mantel, Klaus and Lindlein, Norbert},
doi = {10.1364/AO.57.004849},
faupublication = {yes},
journal = {Applied Optics},
keywords = {Fringe analysis; Interferometry; Phase measurement; Polarimetry; Birefringence; Polarization; Phase measurement; Phase shift; Phase shifting interferometry; Polymer liquid crystals; Refractive index; Stress birefringence},
pages = {4849--4856},
peerreviewed = {Yes},
title = {{Simultaneous} measurement of phase transmission and birefringence of an object under test},
url = {http://ao.osa.org/abstract.cfm?URI=ao-57-17-4849},
volume = {57},
year = {2018}
}
@article{faucris.213121092,
author = {Rothau, Sergej and Rao, Xiao and Lindlein, Norbert},
doi = {10.1364/AO.58.001739},
faupublication = {yes},
journal = {Applied Optics},
pages = {1739-1746},
peerreviewed = {Yes},
title = {{Simultaneous} measurement of phase transmission and linear or circular dichroism of an object under test},
volume = {58},
year = {2019}
}
@inproceedings{faucris.108831404,
author = {Rothau, Sergej and Nercissian, Vanusch and Berger, Andreas and Lindlein, Norbert},
booktitle = {114. Jahrestagung der DGaO},
faupublication = {yes},
publisher = {DGaO},
title = {{Simultane} {Vermessung} der {Phase} und der räumlich variierenden linearen {Polarisation}},
venue = {Braunschweig},
volume = {114},
year = {2013}
}
@inproceedings{faucris.255622729,
abstract = {Fiber laser pulses at 1030 nm are compressed from ~340 fs to 3.8 fs at repetition rates up to 10 MHz in a two-stage setup using gas-filled single-ring photonic crystal fibers with >70% total transmission.},
author = {Schade, Daniel and Köttig, F. and Koehler, J. R. and Frosz, M. H. and Tani, F. and Russell, Philip St. John},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-11-16/2020-11-20},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-04-19},
peerreviewed = {unknown},
publisher = {The Optical Society},
title = {{Single}-cycle pulse compression at 10 {MHz} repetition rate in gas-filled hollow-core photonic crystal fiber},
venue = {Washington, DC},
year = {2020}
}
@article{faucris.213240650,
abstract = {We demonstrate the first soft-glass hollow core photonic crystal fiber. The fiber is made from a high-index lead-silicate glass (Schott SF6, refractive index 1.82 at 500 nm). Fabricated by the stack-and-draw technique, the fiber incorporates a 7-cell hollow core embedded in a highly uniform 6-layer cladding structure that resembles a kagomé-like lattice. Effective single mode guidance of light is observed from 750 to 1050 nm in a large mode area (core diameter ~30 µm) with a low loss of 0.74 dB/m. The underlying guidance mechanism of the fiber is investigated using finite element modeling. The fiber is promising for applications requiring single mode guidance in a large mode area, such as particle guidance, fluid and gas filled devices.},
author = {Jiang, Xin and Euser, T. G. and Abdolvand, Amir and Babic, F. and Tani, Francesco and Joly, Nicolas and Travers, J. C. and Russell, Philip St. John},
doi = {10.1364/OE.19.015438},
faupublication = {yes},
journal = {Optics Express},
note = {EAM Import::2019-03-13},
pages = {15438-15444},
peerreviewed = {Yes},
title = {{Single}-mode hollow-core photonic crystal fiber made from soft glass},
volume = {19},
year = {2011}
}
@article{faucris.276452123,
abstract = {As the generation of squeezed states of light has become a standard technique in laboratories, attention is increasingly directed towards adapting the optical parameters of squeezed beams to the specific requirements of individual applications. It is known that imaging, metrology, and quantum information may benefit from using squeezed light with a tailored transverse spatial mode. However, experiments have so far been limited to generating only a few squeezed spatial modes within a given setup. Here, we present the generation of single-mode squeezing in Laguerre-Gauss and Bessel-Gauss modes, as well as an arbitrary intensity pattern, all from a single setup using a spatial light modulator (SLM). The degree of squeezing obtained is limited mainly by the initial squeezing and diffractive losses introduced by the SLM, while no excess noise from the SLM is detectable at the measured sideband. The experiment illustrates the single-mode concept in quantum optics and demonstrates the viability of current SLMs as flexible tools for the spatial reshaping of squeezed light.},
author = {Semmler, Marion and Berg-Johansen, Stefan and Chille, Vanessa and Gabriel, Christian and Banzer, Peter and Aiello, Andrea and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OE.24.007633},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {7633-7642},
peerreviewed = {Yes},
title = {{Single}-mode squeezing in arbitrary spatial modes},
volume = {24},
year = {2016}
}
@article{faucris.264852295,
abstract = {A single quantum emitter can possess a very strong intrinsic nonlinearity, but its overall promise for nonlinear effects is hampered by the challenge of efficient coupling to incident photons. Common nonlinear optical materials, on the other hand, are easy to couple to but are bulky, imposing a severe limitation on the miniaturization of photonic systems. In this Letter, we show that a single organic molecule acts as an extremely efficient nonlinear optical element in the strong coupling regime of cavity quantum electrodynamics. We report on single-photon sensitivity in nonlinear signal generation and all-optical switching. Our work promotes the use of molecules for applications such as integrated photonic circuits operating at very low powers.},
author = {Pscherer, André and Meierhofer, Manuel and Wang, Daqing and Kelkar, Hrishikesh and Martín-Cano, Diego and Utikal, Tobias and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1103/PhysRevLett.127.133603},
faupublication = {yes},
journal = {Physical Review Letters},
note = {CRIS-Team Scopus Importer:2021-10-08},
peerreviewed = {Yes},
title = {{Single}-{Molecule} {Vacuum} {Rabi} {Splitting}: {Four}-{Wave} {Mixing} and {Optical} {Switching} at the {Single}-{Photon} {Level}},
volume = {127},
year = {2021}
}
@article{faucris.231358787,
author = {Salakhutdinov, Vsevolod and Sondermann, Markus and Carbone, Luigi and Giacobino, Elisabeth and Bramati, Alberto and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.124.013607},
faupublication = {yes},
journal = {Physical Review Letters},
month = {Jan},
pages = {013607},
peerreviewed = {Yes},
title = {{Single} {Photons} {Emitted} by {Nanocrystals} {Optically} {Trapped} in a {Deep} {Parabolic} {Mirror}},
volume = {124},
year = {2020}
}
@article{faucris.268917914,
abstract = {Single-photon sources have a variety of applications. One of these is quantum radiometry, which is reported on in this paper in the form of an overview, specifically of the current state of the art in the application of deterministic single photon sources to the calibration of single photon detectors. To optimize single-photon sources for this purpose, extensive research is currently carried out at the European National Metrology Institutes (NMIs), in collaboration with partners from universities. Single-photon sources of different types are currently under investigation, including sources based on defect centres in (nano-)diamonds, on molecules and on semiconductor quantum dots. We will present, summarise, and compare the current results obtained at European NMIs for single-photon sources in terms of photon flux, single-photon purity, and spectral power distribution as well as the results of single-photon detector calibrations carried out with this type of light sources.},
author = {Kueck, Stefan and Lopez, Marco and Hofer, Helmuth and Georgieva, Hristina and Christinck, Justus and Rodiek, Beatrice and Porrovecchio, Geiland and Smid, Marek and Götzinger, Stephan and Becher, Christoph and Fuchs, Philipp and Lombardi, Pietro and Toninelli, Costanza and Trapuzzano, Marco and Colautti, Maja and Margheri, Giancarlo and Degiovanni, Ivo Pietro and Traina, Paolo and Rodt, Sven and Reitzenstein, Stephan},
doi = {10.1007/s00340-021-07734-2},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {CRIS-Team Scopus Importer:2022-02-04},
peerreviewed = {Yes},
title = {{Single} photon sources for quantum radiometry: a brief review about the current state-of-the-art},
volume = {128},
year = {2022}
}
@article{faucris.110495484,
abstract = {Femtosecond pulses circulating in a synchronously driven fiber ring cavity have complex amplitude and phase profiles that can change completely from one round-trip to the next. We use a recently developed technique, combining dispersive Fourier transformation) with spectral interferometry, to reconstruct the spectral amplitude and phase at each round-trip and, thereby, follow in detail the pulse reorganization that occurs. We focus on two different regimes: a period-two regime in which the pulse alternates between two distinct states and a highly complex regime. We characterize the spectral amplitude and phase of the pulses in both regimes at a repetition rate of 75.6 MHz and find good agreement with modeling of the system based on numerical solutions of the generalized nonlinear Schrodinger equation with feedback. (C) 2016 Optical Society of America},
author = {Hammer, Jonas and Hosseini, P. and Menyuk, C. R. and Russell, Philip St. John and Joly, Nicolas},
doi = {10.1364/OL.41.004641},
faupublication = {yes},
journal = {Optics Letters},
pages = {4641-4644},
peerreviewed = {Yes},
title = {{Single}-shot reconstruction of spectral amplitude and phase in a fiber ring cavity at a 80 {MHz} repetition rate},
volume = {41},
year = {2016}
}
@inproceedings{faucris.260822471,
abstract = {We present results on nonlinear electro-optical conversion of microwave radiation into the optical telecommunication band with more than 0.1% photon number conversion efficiency with MHz bandwidth, in a crystalline whispering gallery mode resonator.},
author = {Rueda, Alfredo and Sedlmeir, Florian and Collodo, Michele and Vogl, Ulrich and Stiller, Birgit and Schunk, Gerhard and Strekalov, Dmitry V. and Marquardt, Christoph and Fink, Johannes M. and Painter, Oskar and Leuchs, Gerd and Schwefel, Harald G.L.},
booktitle = {Optics InfoBase Conference Papers},
date = {2017-07-17/2017-07-21},
doi = {10.1364/NLO.2017.NM3A.1},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2021-06-29},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Single} sideband microwave to optical photon conversion-an electro-optic realization},
venue = {Waikoloa, HI, USA},
volume = {Part F54-NLO 2017},
year = {2017}
}
@article{faucris.278502039,
abstract = {Ultra-short laser (USL)-induced surface structuring combined with nanoparticles synthesis by multiphoton photoreduction represents a novel single-step approach for commercially pure titanium (cp-Ti) surface enhancement. Such a combination leads to the formation of distinct topographical features covered by nanoparticles. The USL processing of cp-Ti in an aqueous solu-tion of silver nitrate (AgNO3) induces the formation of micron-sized spikes surmounted by silver nanoparticles (AgNPs). The proposed approach combines the structuring and oxidation of the Ti surface and the synthesis of AgNPs in a one-step process, without the use of additional chemicals or a complex apparatus. Such a process is easy to implement, versatile and sustainable compared to alternative methodologies capable of obtaining comparable results. Antimicrobial surfaces on medical devices (e.g., surgical tools or implants), for which titanium is widely used, can be realized due to the simultaneous presence of AgNPs and micro/nano-structured surface topography. The pro-cessed surfaces were examined by means of a scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM) and Raman spectroscopy. The surface morphology and the oxidation, quality and quantity of AgNPs were analyzed in relation to process parameters (laser scanning speed and AgNO3 concentration), as well as the effect of AgNPs on the Raman signal of Titanium oxide.},
author = {Aceti, Dante Maria and Filipov, Emil and Angelova, Liliya and Sotelo, Lamborghini and Fontanot, Tommaso and Yousefi, Peyman and Christiansen, Silke and Leuchs, Gerd and Stanimirov, Stanislav and Trifonov, Anton and Buchvarov, Ivan and Daskalova, Albena},
doi = {10.3390/ma15134670},
faupublication = {yes},
journal = {Materials},
keywords = {laser ablation; multiphoton photo-reduction; silver nanoparticles; surface patterning; titanium; ultra-short laser processing},
note = {CRIS-Team Scopus Importer:2022-07-22},
peerreviewed = {Yes},
title = {{Single}-{Step} {Process} for {Titanium} {Surface} {Micro}-and {Nano}-{Structuring} and {In} {Situ} {Silver} {Nanoparticles} {Formation} by {Ultra}-{Short} {Laser} {Patterning}},
volume = {15},
year = {2022}
}
@article{faucris.213248507,
abstract = {Slow waves on chains or lattices of resonant elements offer a unique tool for guiding and manipulating the electromagnetic radiation on a subwavelength scale. Applications range from radio waves to optics with two major classes of structures being used: (i) metamaterials made of coupled ring resonators supporting magnetoinductive waves and (ii) plasmonic crystals made of nanoparticles supporting waves of near-field coupling. We derive dispersion equations of both types of slow waves for the case when the interelement coupling is governed by retardation effects, and show how closely they are related. The current distribution is found from Kirchhoff's equation by inverting the impedance matrix. In contrast to previous treatments power conservation is demonstrated in a form relevant to a finite structure: the input power is shown to be equal to the radiated power plus the powers absorbed in the Ohmic resistance of the elements and the terminal impedance. The relations between frequency and wave number are determined for a 500-element line for two excitations using three different methods. Our approach of retrieval of the dispersion from driven solutions of finite lines is relevant for practical applications and may be used in the design of metamaterials and plasmonic crystals with desired properties.},
author = {Zhuromskyy, Oleksandr and Sydoruk, Oleksiy and Shamonina, E. and Solymar, L.},
doi = {10.1063/1.3259397},
faupublication = {yes},
journal = {Journal of Applied Physics},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Slow} waves on magnetic metamaterials and on chains of plasmonic nanoparticles: {Driven} solutions in the presence of retardation},
volume = {106},
year = {2009}
}
@article{faucris.313193560,
abstract = {Extracellular matrix (ECM) deposition after central nervous system (CNS) injury leads to inhibitory scarring in humans and other mammals, whereas it facilitates axon regeneration in the zebrafish. However, the molecular basis of these different fates is not understood. Here, we identify small leucine-rich proteoglycans (SLRPs) as a contributing factor to regeneration failure in mammals. We demonstrate that the SLRPs chondroadherin, fibromodulin, lumican, and prolargin are enriched in rodent and human but not zebrafish CNS lesions. Targeting SLRPs to the zebrafish injury ECM inhibits axon regeneration and functional recovery. Mechanistically, we find that SLRPs confer mechano-structural properties to the lesion environment that are adverse to axon growth. Our study reveals SLRPs as inhibitory ECM factors that impair axon regeneration by modifying tissue mechanics and structure, and identifies their enrichment as a feature of human brain and spinal cord lesions. These findings imply that SLRPs may be targets for therapeutic strategies to promote CNS regeneration.
2) as well as
in its direct vicinity. We constructed and tested a cylindrical
high-pressure chamber and an experiment system with a high speed camera.
The solute/solvent combination of DL-α-tocopherol/SCCO2 was applied using shadowgraph. The diffusion coefficients at temperatures of 40o C, 50o C and 60o
C and pressures between 75 bar and 90 bar were calculated based on the
displacement of the droplet contour in the captured images. The shearing
interferometry with a Wollaston-prism was then applied not only for the
combination of DL-α-tocopherol/SCCO2, but also for other substances in SCCO2,
for example for a type of rose oil and lubricant oil as well as for
acetone, benzene, toluene and naphthalene. The changes of the refractive
index gradient were directly measured and evaluated with the
interferograms; afterwards changes of the density gradients and the
diffusion coefficients were determined. We propose then a multivariate
regression model to capture the relationship between the diffusion
coefficient, the pressure and the temperature. To minimize the influence
of gravity-driven convections in the solvent during diffusion, the
experiments were also carried out under microgravity condition, i.e. in
two parabolic flight campaign},
author = {Hu, Miao and Benning, Rainer and Delgado, Antonio and Ertunc, Özgür and Nercissian, Vanusch and Berger, M.},
doi = {10.1007/s00231-017-2075-7},
faupublication = {yes},
journal = {Heat and Mass Transfer},
note = {UnivIS-Import:2018-02-22:Pub.2017.tech.ITC.stmmec.studyo},
pages = {3409-3420},
peerreviewed = {Yes},
title = {{Study} of mass transfer in supercritical carbon dioxide ({SCCO2}) using optical methods},
volume = {53},
year = {2017}
}
@inproceedings{faucris.276454128,
abstract = {We experimentally study the turbulence induced crosstalk between orbital angular momentum channels transmitted over a 1.6 km optical link. Our presented results indicate that turbulence mitigation techniques will be required for links of this length. © OSA 2015.},
author = {Lavery, Martin P.J. and Heim, Bettina and Peuntinger, Christian and Magaña-Loaiza, Omar S. and Karimi, Ebrahim and Bauer, Thomas and Banzer, Peter and Marquardt, Christoph and Willner, Alan E. and Boyd, Robert W. and Padgett, Miles J. and Leuchs, Gerd},
booktitle = {CLEO: Science and Innovations, CLEO-SI 2015},
date = {2015-05-10/2015-05-15},
doi = {10.1364/CLEO{\_}SI.2015.STu1L.4},
faupublication = {yes},
isbn = {9781557529688},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {2267-},
peerreviewed = {unknown},
publisher = {Optical Society of America (OSA)},
title = {{Study} of turbulence induced orbital angular momentum channel crosstalk in a 1.6km free-space optical link},
venue = {San Jose, CA},
year = {2015}
}
@article{faucris.112077064,
abstract = {Small, controllable, highly accessible quantum systems can serve as probes at the single-quantum level to study a number of physical effects, for example in quantum optics or for electric- and magnetic-field sensing. The applicability of trapped atomic ions as probes is highly dependent on the measurement situation at hand and thus calls for specialized traps. Previous approaches for ion traps with enhanced optical access included traps consisting of a single ring electrode or two opposing endcap electrodes. Other possibilities are planar trap geometries, which have been investigated for Penning traps and radiofrequency trap arrays. By not having the electrodes lie in a common plane, the optical access can be substantially increased. Here, we report the fabrication and experimental characterization of a novel radiofrequency ion trap geometry. It has a relatively simple structure and provides largely unrestricted optical and physical access to the ion, of up to 96% of the total 4 solid angle in one of the three traps tested. The trap might find applications in quantum optics and field sensing. As a force sensor, we estimate sensitivity to forces smaller than 1 yN Hz 1/2. © 2009 Macmillan Publishers Limited.},
author = {Leuchs, Gerd and et al.},
author_hint = {Maiwald Robert, Leibfried Dietrich, Britton Joe, Bergquist James C., Leuchs Gerd, Wineland David J},
doi = {10.1038/nphys1311},
faupublication = {yes},
journal = {Nature Physics},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.stylus},
pages = {551-554},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Stylus} ion trap for enhanced access and sensing},
volume = {5},
year = {2009}
}
@article{faucris.247573409,
abstract = {The possibility to perform time-resolved spectroscopic studies in the molecular fingerprinting region or extending the cutoff wavelength of high-harmonic generation has recently boosted the development of efficient mid-infrared (mid-IR) ultrafast lasers. In particular, fiber lasers based on active media such as thulium or holmium are a very active area of research since they are robust, compact, and can operate at high repetition rates. These systems, however, are still complex, are unable to deliver pulses shorter than 100 fs, and are not yet as mature as their nearinfrared counterparts. Here, we report the generation of sub-40 fs pulses at 1.8 gm, with quantum efficiencies of 50% and without the need for post-compression, in hydrogen-filled, hollow-core photonic crystal fiber pumped by a commercial high-repetition-rate 300 fs fiber laser at 1030 nm. This is achieved by pressure-tuning the dispersion and avoiding Raman gain suppression by adjusting the chirp of the pump pulses and the proportion of higher-order modes launched into the fiber. The system is optimized using a physical model that incorporates the main linear and nonlinear contributions to the optical response. The approach is average power-scalable, permits adjustment of the pulse shape, and can potentially allow access to much longer wavelengths. (C) 2020 Optical Society of America},
author = {Loranger, Sebastien and Russell, Philip St. John and Novoa, David},
doi = {10.1364/JOSAB.402179},
faupublication = {yes},
journal = {Journal of the Optical Society of America B-Optical Physics},
note = {CRIS-Team WoS Importer:2021-01-08},
pages = {3550-3556},
peerreviewed = {Yes},
title = {{Sub}-40 fs pulses at 1.8 mu m and {MHz} repetition rates by chirp-assisted {Raman} scattering in hydrogen-filled hollow-core fiber},
volume = {37},
year = {2020}
}
@article{faucris.116523484,
abstract = {We propose a technique capable of imaging a distinct physical object with sub-Rayleigh resolution in an ordinary far-field imaging setup using single-photon sources and linear optical tools only. We exemplify our method for the case of a rectangular aperture and two or four single-photon emitters obtaining a resolution enhanced by a factor of 2 or 4, respectivel},
author = {Thiel, Christoph and Bastin, T. and von Zanthier, Joachim and Agarwal, G. S.},
doi = {10.1103/PhysRevA.80.013820},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Sub}-{Rayleigh} quantum imaging using single-photon sources},
volume = {80},
year = {2009}
}
@article{faucris.116178304,
abstract = {We present a setup for performing sub-shot-noise measurements of the phase quadrature of intense pulsed light without the use of a separate local oscillator. A Mach-Zehnder interferometer with an unbalanced arm length is used to detect the fluctuations of the phase quadrature at a single sideband frequency. With this setup, the nonseparability of a pair of quadrature-entangled beams is demonstrated experimentally. © 2004 Optical Society of America.},
author = {Leuchs, Gerd and et al.},
author_hint = {Glöckl Oliver, Andersen Ulrik, Lorenz Stefan, Silberhorn Ch., Korolkova N., Leuchs Gerd},
doi = {10.1364/OL.29.001936},
faupublication = {yes},
journal = {Optics Letters},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.subsho},
pages = {1936},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Sub} shot noise phase quadrature measurement of intense light beams},
volume = {29},
year = {2004}
}
@article{faucris.226554154,
abstract = {We experimentally investigate the chiral optical response of an individual nanostructure consisting of three equally sized spherical nanoparticles made of different materials and arranged in 90 degrees bent geometry. Placing the nanostructure on a substrate converts its morphology from achiral to chiral. Chirality leads to pronounced differential extinction (circular dichroism) and optical rotation (circular birefringence), which would be strictly forbidden in the absence of a substrate or heterogeneity. This first experimental observation of the substrate-induced break of symmetry in an individual heterogeneous nanostructure sheds new light on chiral light-matter interactions at substrate-nanostructure interfaces.},
author = {Nechayev, Sergey and Barczyk, Rene and Mick, Uwe and Banzer, Peter},
doi = {10.1021/acsphotonics.9b00748},
faupublication = {yes},
journal = {ACS Photonics},
note = {CRIS-Team WoS Importer:2019-09-13},
pages = {1876-1881},
peerreviewed = {Yes},
title = {{Substrate}-{Induced} {Chirality} in an {Individual} {Nanostructure}},
volume = {6},
year = {2019}
}
@article{faucris.121003124,
author = {Schür, Carsten and Marek, Tamas and Strunk, Horst Paul and Tautz, Sönke and Steen, Christian and Kiesel, Peter and Malzer, Stefan and Döhler, Gottfried and Niecke, M. and Schröder, F. and Mayer, R. and Knappe, R.},
faupublication = {yes},
journal = {Physik mikrostrukturierter Halbleiter},
note = {UnivIS-Import:2015-04-14:Pub.2001.tech.IW.LM.substr},
pages = {145-150},
peerreviewed = {unknown},
title = {{Substrate} misorientation as additional parameter for low temperature growth of {GaAs}},
volume = {23},
year = {2001}
}
@inproceedings{faucris.107768584,
abstract = {In this work we present a compact and versatile way to generate sub-THz and THz signals using an OFCG based on a Photonic Local Oscillator responsible to generate the two wavelengths to be mixed in the photomixer based on a Gain Switching (GS) Scheme and the use of Phase Modulation; and n-i-p-n-i-p superlattice photomixers. The proposed scheme is able to cover a wide span with continuous tunability. The description of the different components of the system (Photonic Local Oscillator and Photomixer) is covered as well as some preliminary data. © 2012 IEEE.},
author = {de Dios, Christina and Criado, Ruben and Döhler, Gottfried and Preu, Sascha and Malzer, Stefan and Bauerschmidt, Sebastian and Garcia-Munoz, Enrique and Segovia-Vargas, Daniel and Acedo, Pablo},
booktitle = {2012 IEEE International Topical Meeting on Microwave Photonics, MWP 2012},
doi = {10.1109/MWP.2012.6474118},
faupublication = {yes},
pages = {302-305},
title = {{Sub}-{THz} and {THz} {Photonic} generation with continuous tunability using gain switching based optical frequency comb generators and n-i-p-n-i-p superlattice photomixers},
venue = {Noordwijk},
year = {2012}
}
@article{faucris.240048345,
abstract = {Compact and powerful ultrafast light sources at high pulse repetition rates, based on mode-locked near infrared fiber lasers, are now widely available and are being used in applications such as frequency metrology, molecular spectroscopy, and laser micro-machining. The realization of such lasers in the mid-infrared has, however, remained a challenge for many years. Here we report a record-breaking three-stage fiber laser system that uses an Er-doped fluoride fiber as gain medium, delivering W-level few-cycle pulses at 2.8 µm at a repetition rate of 42.1 MHz. A fiber-based seed oscillator, cavity dispersion-managed by a pulse-stretcher, generates near-100-fs mid-infrared pulses with >110 nm spectral bandwidth. These pulses are amplified to an average power of ∼1 W in a chirp-engineered fiber amplifier, and then compressed to ∼16 fs in a short length of highly nonlinear ZBLAN fiber, resulting in a more-than-octave-wide spectrum reaching from 1.8 µm to 3.8 µm with a total power of 430 mW.},
author = {Huang, J. and Pang, M. and Jiang, X. and Köttig, F. and Schade, D. and He, W. and Butryn, M. and Russell, Philip St. John},
doi = {10.1364/OPTICA.389143},
faupublication = {yes},
journal = {Optica},
note = {CRIS-Team Scopus Importer:2020-07-03},
pages = {574-579},
peerreviewed = {Yes},
title = {{Sub}-two-cycle octave-spanning mid-infrared fiber laser},
volume = {7},
year = {2020}
}
@article{faucris.120178124,
abstract = {The Arabidopsis SUC5 protein represents a classical sucrose/H(+) symporter. Functional analyses previously revealed that SUC5 also transports biotin, an essential co-factor for fatty acid synthesis. However, evidence for a dual role in transport of the structurally unrelated compounds sucrose and biotin in plants was lacking. Here we show that SUC5 localizes to the plasma membrane, and that the SUC5 gene is expressed in developing embryos, confirming the role of the SUC5 protein as substrate carrier across apoplastic barriers in seeds. We show that transport of biotin but not of sucrose across these barriers is impaired in suc5 mutant embryos. In addition, we show that SUC5 is essential for the delivery of biotin into the embryo of biotin biosynthesis-defective mutants (bio1 and bio2). We compared embryo and seedling development as well as triacylglycerol accumulation and fatty acid composition in seeds of single mutants (suc5, bio1 or bio2), double mutants (suc5 bio1 and suc5 bio2) and wild-type plants. Although suc5 mutants were like the wild-type, bio1 and bio2 mutants showed developmental defects and reduced triacylglycerol contents. In suc5 bio1 and suc5 bio2 double mutants, developmental defects were severely increased and the triacylglycerol content was reduced to a greater extent in comparison to the single mutants. Supplementation with externally applied biotin helped to reduce symptoms in both single and double mutants, but the efficacy of supplementation was significantly lower in double than in single mutants, showing that transport of biotin into the embryo is lower in the absence of SUC5.},
author = {Pommerrenig, Benjamin and Popko, Jennifer and Heilmann, Martin and Schulmeister, Sylwia and Dietel, Katharina and Schmitt, Bianca and Stadler, Ruth and Feussner, Ivo and Sauer, Norbert},
doi = {10.1111/tpj.12037},
faupublication = {yes},
journal = {Plant Journal},
pages = {392-404},
peerreviewed = {unknown},
title = {{SUCROSE} {TRANSPORTER} 5 supplies {Arabidopsis} embryos with biotin and affects triacylglycerol accumulation},
volume = {73},
year = {2013}
}
@article{faucris.106828524,
abstract = {Superradiance, i.e., spontaneous emission of coherent radiation by an ensemble of two-level atoms in collective states introduced by Dicke in 1954, is one of the enigmatic problems of quantum optics. The startling gist is that even though the atoms have no dipole moment they radiate with increased intensity in particular directions. Following the advances in our understanding of superradiant emission by atoms in entangled W-states we examine the quantum statistical properties of superradiance. Such investigations require the system to have at least two excitations in order to explore the photon-photon correlations of the radiation emitted by such states. We present specifically results for the spatially resolved photon-photon correlations of systems prepared in doubly excited W-states and give conditions when the atomic system emits nonclassial light. Equally, we derive the conditions for the occurrence of bunching and even of superbunching, a rare phenomenon otherwise known only from nonclassical states of light like the squeezed vacuum. We finally investigate the photon-photon cross correlations of the spontaneously scattered light and highlight the nonclassicalty of such correlations. The theoretical findings can be implemented with current technology, e.g., using ions in a linear rf-trap, atoms in an optical lattice or quantum dots in a cavit},
author = {Bhatti, Daniel and von Zanthier, Joachim and Agarwal, Girish S.},
doi = {10.1038/srep17335},
faupublication = {yes},
journal = {Scientific Reports},
peerreviewed = {Yes},
title = {{Superbunching} and {Nonclassicality} as new {Hallmarks} of {Superradiance}},
volume = {5},
year = {2015}
}
@inproceedings{faucris.288243883,
address = {Lausanne, Switzerland},
author = {Eichler, Christopher},
booktitle = {QCHS SUMMER SCHOOL},
date = {2022-06-15},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Superconducting} circuits for quantum computing},
venue = {Lausanne, Switzerland},
year = {2022}
}
@inproceedings{faucris.288238584,
address = {Arosa, Switzerland},
author = {Eichler, Christopher},
booktitle = {QSIT Meeting - Winter school},
date = {2017-01-30},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
title = {{Superconducting} {Quantum} {Circuits}},
url = {http://www.nccr-qsit.ethz.ch/news/conferences-events/arosa-2017/program-winter-school.html},
venue = {Arosa, Switzerland},
year = {2017}
}
@article{faucris.122590864,
abstract = {Photonic crystal fibers (PCFs) made from ZBLAN glass are of great interest for generating broadband supercontinua extending into the ultraviolet and mid-infrared regions. Precise sub-micrometer structuring makes it possible to adjust the modal dispersion over a wide range, making the generation of new frequencies more efficient. Here we report a novel ZBLAN PCF with six cores, each containing a central nanobore of a diameter similar to 330 nm. Each nanobore core supports several guided modes, and the presence of the nanobore significantly modifies the dispersion, strongly influencing the dynamics and the extent of supercontinuum generation. Spectral broadening is observed when a single core is pumped in the fundamental and first higher order core modes with 200 fs long pulses at a wavelength of 1042 nm. Frequency-resolved optical gating is used to characterize the output pulses when pumping in the lowest order mode. The results are verified by numerical simulations. (C) 2016 Optical Society of America},
author = {Jiang, Xin and Joly, Nicolas and Finger, Martin A. and Babic, Fehim and Pang, Meng and Sopalla, Rafal and Frosz, Michael H. and Poulain, Samuel and Poulain, Marcel and Cardin, Vincent and Travers, John C. and Russell, Philip St. John},
doi = {10.1364/OL.41.004245},
faupublication = {yes},
journal = {Optics Letters},
pages = {4245-4248},
peerreviewed = {Yes},
title = {{Supercontinuum} generation in {ZBLAN} glass photonic crystal fiber with six nanobore cores},
volume = {41},
year = {2016}
}
@inproceedings{faucris.259939078,
address = {NEW YORK},
author = {Roth, Paul and Wong, Gordon K. L. and Frosz, Michael H. and Russell, Philip St. John},
booktitle = {2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)},
doi = {10.1364/cleopr.2020.c3b{\_}3},
faupublication = {yes},
month = {Jan},
note = {CRIS-Team WoS Importer:2021-06-11},
peerreviewed = {unknown},
publisher = {IEEE},
title = {{Supercontinuum} {Generation} with {Circularly} {Polarized} {Vortex} {Modes} in a {Chiral} {Three} -{Core} {PCF}},
year = {2020}
}
@article{faucris.276467166,
abstract = {We introduce the concept of a superlinear threshold detector, a detector that has a higher probability to detect multiple photons if it receives them simultaneously rather than at separate times. Highly superlinear threshold detectors in quantum key distribution systems allow eavesdropping the full secret key without being revealed. Here, we generalize the detector control attack, and analyze how it performs against quantum key distribution systems with moderately superlinear detectors. We quantify the superlinearity in superconducting single-photon detectors based on earlier published data, and gated avalanche photodiode detectors based on our own measurements. The analysis shows that quantum key distribution systems using detector(s) of either type can be vulnerable to eavesdropping. The avalanche photodiode detector becomes superlinear toward the end of the gate. For systems expecting substantial loss, or for systems not monitoring loss, this would allow eavesdropping using trigger pulses containing less than 120 photons per pulse. Such an attack would be virtually impossible to catch with an optical power meter at the receiver entrance. © 2011 American Physical Society.},
author = {Lydersen, Lars and Jain, Nitin and Wittmann, Christoffer and Maroy, Oystein and Skaar, Johannes and Marquardt, Christoph and Makarov, Vadim and Leuchs, Gerd},
doi = {10.1103/PhysRevA.84.032320},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Superlinear} threshold detectors in quantum cryptography},
volume = {84},
year = {2011}
}
@article{faucris.123909544,
abstract = {We propose to use multiphoton interferences of photons emitted fromstatistically independent thermal light sources in combination with linear optical detection techniques to reconstruct, i.e., image, arbitrary source geometries in one dimension with subclassical resolution. The scheme is an extension of earlier work [S. Oppel et al., Phys. Rev. Lett. 109, 233603 (2012)], where N regularly spaced sources in one dimension were imaged by use of the Nth-order intensity correlation function. Here, we generalize the scheme to reconstruct any number of independent thermal light sources at arbitrary separations in one dimension, exploiting intensity correlation functions of order m >= 3. We present experimental results confirming the imaging protocol and provide a rigorous mathematical proof for the obtained subclassical resolutio},
author = {Classen, Anton and Waldmann, Felix and Giebel, Sebastian and Schneider, Raimund and Bhatti, Daniel and Mehringer, Thomas and von Zanthier, Joachim},
doi = {10.1103/PhysRevLett.117.253601},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Superresolving} {Imaging} of {Arbitrary} {One}-{Dimensional} {Arrays} of {Thermal} {Light} {Sources} {Using} {Multiphoton} {Interference}},
volume = {117},
year = {2016}
}
@article{faucris.119200224,
abstract = {We propose to use multiphoton interferences from statistically independent light sources in combination with linear optical detection techniques to enhance the resolution in imaging. Experimental results with up to five independent thermal light sources confirm this approach to improve the spatial resolution. Since no involved quantum state preparation or detection is required, the experiment can be considered an extension of the Hanbury Brown-Twiss experiment for spatial intensity correlations of order N > 2. DOI: 10.1103/PhysRevLett.109.2336},
author = {Oppel, Steffen and Büttner, Teresa and Kok, P. and von Zanthier, Joachim},
doi = {10.1103/PhysRevLett.109.233603},
faupublication = {yes},
journal = {Physical Review Letters},
peerreviewed = {Yes},
title = {{Superresolving} {Multiphoton} {Interferences} with {Independent} {Light} {Sources}},
volume = {109},
year = {2012}
}
@inproceedings{faucris.119709964,
abstract = {Experimental and numerical investigations of phase-preserving amplitude regeneration in a DPSK transmission with a NALM have shown that a 3dB improvement of the Q-factor or alternatively a 3dB increase of fiber-launched power could be achieved. © 2009 IEEE.},
author = {Stephan, Christian and Sponsel, Klaus and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Optical Fiber Communication 2009},
date = {2009-03-22/2009-03-26},
doi = {10.1364/NFOEC.2009.JThA60},
faupublication = {yes},
isbn = {9781557528650},
note = {UnivIS-Import:2017-12-18:Pub.2009.tech.IE.LEH.suppre},
pages = {1-3},
peerreviewed = {Yes},
title = {{Suppression} of {Nonlinear} {Phase} {Noise} in a {DPSK} {Transmission} {Using} a {Nonlinear} {Amplifying} {Loop} {Mirror}},
venue = {San Diego, CA},
year = {2009}
}
@article{faucris.213239196,
abstract = {We present an experimental and numerical investigation of the polarization anisotropy of the zero-order backdiffracted light from three-dimensional thin-film photonic crystals assembled from colloidal spheres. In particular, we compare simulations of reflectance spectra from perfectly ordered fcc lattice of spheres with measured reflectance data from self-organized opal films and forced-assembled Langmuir-Blodgett crystal films. We identify cross-polarization couplings and interactions between photonic crystal eigenmodes as the major physical mechanisms for resonance depolarization effects. Based on this, we find that a necessary condition for the observation of critical angles of diffraction in three-dimensional lattices is that the orientation of the light's plane of incidence coincides with a high-symmetry plane of the crystal lattice. We further show that for currently achievable colloidal photonic crystals with moderate refractive index contrast, this resonance depolarization mechanisms together with the destructive influence of lattice disorder effectively renders the meaning of a critical angle of diffraction obsolete.},
author = {Romanov, Sergei G. and Peschel, Ulf and Bardosova, Maria and Essig, Sabine and Busch, Kurt},
doi = {10.1103/PhysRevB.82.115403},
faupublication = {yes},
journal = {Physical Review B},
note = {EAM Import::2019-03-13},
peerreviewed = {Yes},
title = {{Suppression} of the critical angle of diffraction in thin-film colloidal photonic crystals},
volume = {82},
year = {2010}
}
@inproceedings{faucris.304461961,
abstract = {Tricalcium phosphate (Ca3(PO4)2, TCP), is one of the most studied and used as material for bioresorbable implants. The β phase has a slower dissolution dynamic and ensures mechanical support for a longer time in biological environment, while a faster release of ions characterize the α phase that trigger a stronger biological response. In this work a femtosecond laser system was used to process β-TCP pellets surface. The femtosecond laser processing results in surface morphology modification, by turning the flat mirror polished surface into a rough and opaque one. The morphological and phisycochemical characteristics of material surface were studied by means of SEM, AFM, Raman, XRD and contact angle measurement. The processed surface showed the formation of micro and nano roughness alongside, furthermore a partial phase transformation from β-TCP to α-TCP was detected. A significant improvement in surface wettability for three different liquids (i.e.water, ethylene glycol and diiodo-methane) is reported. This implies an increase in surface free energy as well. The combination of α and β phase, together with the increased roughness obtained by laser processing, could positively affect the cell adhesion and metabolic activity.},
author = {Aceti, D. M. and Filipov, E. and Sotelo, Lamborghini and Fontanot, T. and Christiansen, S. and Lasgorceix, M. and Leriche, A. and Buchvarov, I. and Daskalova, A.},
booktitle = {Journal of Physics: Conference Series},
date = {2022-09-19/2022-09-23},
doi = {10.1088/1742-6596/2487/1/012043},
faupublication = {yes},
note = {CRIS-Team Scopus Importer:2023-06-02},
peerreviewed = {unknown},
publisher = {Institute of Physics},
title = {{Surface} structuring of β-{TCP} and transition to α-{TCP} induced by femtosecond laser processing},
venue = {Virtual, Online},
volume = {2487},
year = {2023}
}
@article{faucris.230754886,
abstract = {Controllable optically driven rotation of microscopic objects is desirable in many applications, but is difficult to achieve. Here we report a sustained self-starting orbital motion of a clamped elongated nanostructure, a glass-fiber nanospike, when a CW laser beam is focused axially onto its tip. Analysis shows that photophoretic antitrapping forces, acting on the nanospike with a delayed response, introduce optomechanical gain into the mechanical motion, overcoming the intrinsic mechanical dissipation and resulting in growth from noise of oscillations at the resonant frequency of the nanospike. These photophoretic forces further enable phase-locking of the orthogonal fast and slow vibrations of the nanospike (induced by slight mechanical anisotropy), giving rise to a self-sustained orbital motion. The locked phase of orbital motion can be changed by tuning the gas pressure and adjusting the geometrical asymmetry of the system. This light-driven nanoengine opens up a new degree of freedom for controlling the rotational motion of elongated nano-objects.},
author = {Xie, Shangran and Pennetta, Riccardo and Wang, Zheqi and Russell, Philip St. John},
doi = {10.1021/acsphotonics.9b01433},
faupublication = {yes},
journal = {ACS Photonics},
keywords = {fiber nanospike; nanomotor; optomechanics; orbital motion; photophoretic force},
note = {CRIS-Team Scopus Importer:2019-12-20},
peerreviewed = {Yes},
title = {{Sustained} {Self}-{Starting} {Orbital} {Motion} of a {Glass}-{Fiber} "nanoengine" {Driven} by {Photophoretic} {Forces}},
year = {2019}
}
@article{faucris.267634394,
abstract = {Synchronization of mechanical oscillators by optical forces is a topic that has been much explored in recent years, for example, in the context of SiN microdisk resonators. Here we report stable long-termsynchronization of the core vibrations of three different photonic crystal fibers, driven intra-cavity by a 2 GHz train of timing-modulated pulses in a high harmonic opto-acoustically mode-locked fiber laser. The core resonances are equally spaced in frequency and are coupled purely by the optical field. Under the correct conditions, they become stably synchronized, being simultaneously driven by the timing-modulated pulse train. Floquet-Bloch theory, in which the pulses are treated as particles trapped in potential wells and coupled by optomechanical back-action, describes the complex temporal dynamics observed in the experiments. This unique system provides a novel means of modifying the temporal structure of pulse trains running at few-gigahertz repetition rates. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement},
author = {Yeh, Dung-Han and He, Wenbin and Pang, Meng and Jiang, Xin and Russell, Philip St J.},
doi = {10.1364/OPTICA.442423},
faupublication = {yes},
journal = {Optica},
note = {CRIS-Team WoS Importer:2021-12-31},
pages = {1581-1585},
peerreviewed = {Yes},
title = {{Synchronization} of gigahertz core resonances in multiple photonic crystal fiber cores by timing-modulated harmonic mode locking},
volume = {8},
year = {2021}
}
@article{faucris.260266588,
abstract = {Mode-locked lasers have been widely used to explore interactions between optical solitons, including bound-soliton states that may be regarded as “photonic molecules”. Conventional mode-locked lasers normally, however, host at most only a few solitons, which means that stochastic behaviours involving large numbers of solitons cannot easily be studied under controlled experimental conditions. Here we report the use of an optoacoustically mode-locked fibre laser to create hundreds of temporal traps or “reactors” in parallel, within each of which multiple solitons can be isolated and controlled both globally and individually using all-optical methods. We achieve on-demand synthesis and dissociation of soliton molecules within these reactors, in this way unfolding a novel panorama of diverse dynamics in which the statistics of multi-soliton interactions can be studied. The results are of crucial importance in understanding dynamical soliton interactions and may motivate potential applications for all-optical control of ultrafast light fields in optical resonators.},
author = {He, Wenbin and Pang, Meng and Yeh, Dung-Han and Huang, Jiapeng and Russell, Philip St. John},
doi = {10.1038/s41377-021-00558-x},
faupublication = {yes},
journal = {Light: Science & Applications},
note = {CRIS-Team Scopus Importer:2021-06-18},
peerreviewed = {Yes},
title = {{Synthesis} and dissociation of soliton molecules in parallel optical-soliton reactors},
volume = {10},
year = {2021}
}
@article{faucris.258185772,
abstract = {Nanoparticles occur in various environments as a consequence of man-made processes, which raises concerns about their impact on the environment and human health. To allow for proper risk assessment, a precise and statistically relevant analysis of particle characteristics (such as size, shape, and composition) is required that would greatly benefit from automated image analysis procedures. While deep learning shows impressive results in object detection tasks, its applicability is limited by the amount of representative, experimentally collected and manually annotated training data. Here, an elegant, flexible, and versatile method to bypass this costly and tedious data acquisition process is presented. It shows that using a rendering software allows to generate realistic, synthetic training data to train a state-of-the art deep neural network. Using this approach, a segmentation accuracy can be derived that is comparable to man-made annotations for toxicologically relevant metal-oxide nanoparticle ensembles which were chosen as examples. The presented study paves the way toward the use of deep learning for automated, high-throughput particle detection in a variety of imaging techniques such as in microscopies and spectroscopies, for a wide range of applications, including the detection of micro- and nanoplastic particles in water and tissue samples.},
author = {Mill, Leonid and Wolff, David and Gerrits, Nele and Philipp, Patrick and Kling, Lasse and Vollnhals, Florian and Ignatenko, Andrew and Jaremenko, Christian and Huang, Yixing and De Castro, Olivier and Audinot, Jean Nicolas and Nelissen, Inge and Wirtz, Tom and Maier, Andreas and Christiansen, Silke},
doi = {10.1002/smtd.202100223},
faupublication = {yes},
journal = {Small Methods},
keywords = {helium ion microscopy; image analysis; machine learning; nanoparticles; segmentation; toxicology},
note = {CRIS-Team Scopus Importer:2021-05-14},
peerreviewed = {Yes},
title = {{Synthetic} {Image} {Rendering} {Solves} {Annotation} {Problem} in {Deep} {Learning} {Nanoparticle} {Segmentation}},
url = {https://onlinelibrary.wiley.com/doi/full/10.1002/smtd.202100223},
year = {2021}
}
@inproceedings{faucris.108444204,
author = {Fries, Sebastian and Loosen, Florian and Lindlein, Norbert},
booktitle = {Proceeding, 5th doctoral students conference on optics (DoKDoK)},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {Abbe School of Photonics},
title = {{Systematic} investigation of the effect of aberration on ultrashort optical pulses focused by an aplanatic lens},
venue = {Oppurg},
year = {2016}
}
@inproceedings{faucris.123059684,
abstract = {The electromagnetic field in the focus of an ideal aplanatic lens with high numerical aperture, which is illuminated by an ultrashort optical pulse and plane wave front, is simulated by taking the vectorial Debye integral and the coherent superposition of a frequency spectrum of monochromatic waves. The behavior of the principal maxima and the first secondary maxima as function of the numerical aperture (NA) and the pulse duration T is investigated systematically for light incident with linear polarization. First, one would not expect remarkable deviations from the stationary case. But also this simple system of an ideal aplanatic lens without any chromatic or monochromatic aberrations (of course only simple from the point of theory, but not at all from the point of practical realization) shows some remarkable results. If the NA (in vacuum) tends to the limiting case of 1.0 the maximum value of |E| increases faster than expected from the scalar theory (Airy disc) with a maximum deviation of about 13%. The second effect really comes from very short pulses, i.e. very small values T. Then, the value of |E| compared to the expected linear increase with 1/T decreases slightly (only less than 2%), but systematically for all NAs. Even more interesting is the dependence of the height of the first secondary maxima along the x-axis and y-axis on the NA and 1/T. It can be seen that along both axes the first secondary maxima nearly vanish for very short pulses, i.e. large values 1/T.},
author = {Lindlein, Norbert and Loosen, Florian and Fries, Sebastian},
booktitle = {Optical Systems Design 2015: Computational Optics},
doi = {10.1117/12.2191277},
faupublication = {yes},
isbn = {9781628418194},
keywords = {aplanatic lens; electric field distribution in the focus; focusing at high numerical aperture; optical simulation techniques; propagation of ultrashort optical pulses; Ultrashort optical pulses},
peerreviewed = {unknown},
publisher = {SPIE},
title = {{Systematic} investigation of the principal and first secondary maxima of ultrashort optical pulses focused by a high numerical aperture aplanatic lens},
volume = {9630},
year = {2015}
}
@article{faucris.276446615,
author = {Lavery, Martin P. J. and Abadi, Mojtaba Mansour and Bauer, Ralf and Brambilla, Gilberto and Cheng, Ling and Cox, Mitchell A. and Dudley, Angela and Ellis, Andrew D. and Fontaine, Nicolas K. and Kelly, Anthony E. and Marquardt, Christoph and Matlhane, Selaelo and Ndagano, Bienvenu and Petruccione, Francesco and Slavik, Radan and Romanato, Filippo and Rosales-Guzman, Carmelo and Roux, Filippus S. and Roux, Kobus and Wang, Jian and Forbes, Andrew},
doi = {10.1038/s41566-018-0162-z},
faupublication = {yes},
journal = {Nature Photonics},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {249-252},
peerreviewed = {Yes},
title = {{Tackling} {Africa}'s digital divide 706 639/624/1075/187 comment},
volume = {12},
year = {2018}
}
@article{faucris.121043604,
abstract = {In the case of strong focusing the smallest possible focal spot can be reached, provided one uses a specially designed polarization pattern. Other optical set-ups also employing high numerical aperture imaging are likewise expected to improve performance under polarization optimization. We propose a strategy for calculating the polarization pattern required for system optimization. A single element modulating only the polarization and not amplitude and phase may lead to satisfactory performance in some cases.},
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Quabis Susanne},
doi = {10.1080/09500340500504374},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.tailor},
pages = {787-797},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Tailored} polarization patterns for performance optimization of optical devices},
volume = {53},
year = {2006}
}
@article{faucris.120314964,
abstract = {We present TE- and TM-polarization-resolved photocurrent measurements on quantum well pin diodes under normal incidence. Usually, optical experiments performed in such a geometry yield information only about transitions involving in-plane (p and p ) components of the hole wave functions because of the in-plane (TE) polarization of the light. Information on transitions sensitive to the p components can be obtained by focussing a radially polarized laser beam through a microscope objective with high numerical aperture ( NA = 0.9). With our setup, the electrical field vector at the focal tail has a significant component along the optical axis (TM-polarization!) which enables excitation of transitions sensitive to p components also. Additionally, the existence of a degenerate (azimuthally polarized) optical mode enables switching these p components on and off easily. Experimental evidence of these features has been achieved by exploiting the selection rules for e-hh and e-lh transitions in a quantum well structure. We present a comparison of our recorded spectra with theoretical predictions obtained from simple geometric optics assumptions. For our quantum wells the polarization effects are small because our measurement averages the intensity distribution of the whole focal plane. We plan to extend our measurements to polarization resolved single quantum dot spectroscopy. By restricting the detection region to the spatial extent of a single dot, one can exploit the almost pure TM-polarization on the optical axis for obtaining high contrast between heavy- and light-hole exciton absorption. © 2006.},
author = {Malzer, Stefan and Leuchs, Gerd and Schardt, Michael and et al.},
author_hint = {Schardt M., Winkler A., Rurimo G., Hanson M., Driscoll D., Quabis S., Malzer S., Leuchs G., Dohler G.H., Gossard A.C.},
doi = {10.1016/j.physe.2005.12.168},
faupublication = {yes},
journal = {Physica E-Low-Dimensional Systems & Nanostructures},
pages = {241-244},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{TE}- and {TM}-polarization-resolved spectroscopy on quantum wells under normal incidence},
volume = {32},
year = {2006}
}
@inproceedings{faucris.225732957,
abstract = {In the age of digitalization, the amount of data generated and
transferred continues to increase dramatically. To increase the
usability of this data it must be accessible with sufficient
transmission bandwidth. Optical signals are already being used for
transmitting data over long distances and high bandwidths, as this
enables fast and low-loss data transmission. This trend is now also
continuing in smaller scales of data transmission. Consequently, even
highly integrated electrical circuits must be supported with optical
components. Therefore, completely new research approaches for the
product development of spatially integrated optical waveguides are
necessary. The polymer-based aerosol jet printing represents a promising
method to print optical waveguides on 3D circuit carriers. For this
reason, the Research Group for Module Integrated Bus Systems deals with
topics related to product development and production of such systems. A
focus is to customize the design and associated modelling tasks
accordingly. Thus, it is essential to create methodical approaches for a
digital representation of waveguides and their production processes in
order to map the physical behavior and to predict their
manufacturability. Current studies show that integrated engineering
approaches with removed boundaries among engineering domains are
preferable to traditional engineering approaches. Consequently, novel
engineering tools are needed for modelling the geometric as well as the
physical properties of optical waveguides with the possibility to
integrate specific design rule checks. The presented modelling approach
in this paper provides/supports the creation of exact digital models
without discontinuities through unnecessary interfaces. This article
presents a method for a powerful computer-aided modelling environment
that enables the design of models that are capable of representing and
validating logical relationships among optoelectronic networks, but also
considers challenges resulting from spatial geometric characteristics
as well as restrictions from manufacturing and physic},
author = {Zeitler, Jochen Tobias and Reitberger, Thomas and Reichle, Andreas and Backhaus, Carsten and Lindlein, Norbert and Franke, Jörg},
booktitle = {Procedia CIRP, Volume 84},
date = {2019-05-08/2019-09-10},
doi = {10.1016/j.procir.2019.03.266},
editor = {Goran D. Putnik},
faupublication = {yes},
keywords = {Computer aided design (CAD); Product development; Optomechatronics},
pages = {713-718},
peerreviewed = {Yes},
publisher = {Elsevier},
title = {{Technical} {Modelling} {Approach} for {Spatial} {Integrated} {Optomechatronic} {Products}},
venue = {Póvoa de Varzim},
year = {2019}
}
@article{faucris.121431244,
abstract = {In many industrial applications, an inline measurement of a production process poses a difficult challenge for any optical system. Therefore, telecentric optical systems are being used to ensure an independence of the magnification of the object from the working distance. Usually, telecentric optical systems are impractical for inline applications with large objects due to the size of the telecentric optical system, which has to be larger than the object. Therefore, a new approach of telecentric line scanning systems was developed to gain access to this advantage.},
author = {Loosen, Florian and Lindlein, Norbert and Donner, Klaus},
doi = {10.1515/aot-2016-0010},
faupublication = {yes},
journal = {Advanced Optical Technologies},
keywords = {industrial applications; inline processes; measuring system; optical design and simulation; ring surface mirror; telecentric system.},
pages = {259-264},
peerreviewed = {Yes},
title = {{Telecentric} line scanning system based on a ring surface mirror for inline processes},
volume = {5},
year = {2016}
}
@inproceedings{faucris.217947316,
abstract = {Quantum key distribution (QKD) enables secure cryptography that is safe against future attacks by quantum computers. We show recent advances in continuous variable QKD and highlight similarities and differences to classical coherent communication.},
author = {Marquardt, Christoph},
booktitle = {2019 Optical Fiber Communications Conference and Exhibition, OFC 2019 - Proceedings},
date = {2019-03-03/2019-03-07},
faupublication = {yes},
isbn = {9781943580538},
note = {CRIS-Team Scopus Importer:2019-05-21},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Telecom} {Compatible} {Quantum} {Key} {Distribution} - {Learning} from {Classical} {Coherent} {Communication}},
venue = {San Diego, CA},
year = {2019}
}
@inproceedings{faucris.121187484,
abstract = {Telezentrische Objektive finden heutzutage in der Messtechnik Anwendung, damit auch bei Veränderung des Objektabstands der Abbildungsmaßstab des Systems nicht von der Tiefe des Objekts abhängt. Da jedoch telezentrische Objektive für das Abscannen großer Oberflächen zu groß und preisintensiv sind, wird hier für diese Anwendung ein modulares System vorgestellt, mit dessen Aufbau ein Objekt linienförmig abgescannt werden kann. Das Ziel dieser Arbeit ist, eine ringförmige Scanlinie auf eine Zeilenkamera abzubilden. Dabei werden die von jedem Objektpunkt ausgehenden Hauptstrahlen durch einen Ringflächenspiegel um 90° abgelenkt und das Objekt auf eine Kugelschale projiziert. Abhängig von der Geometrie der spiegelnden Fläche entsteht so ein reelles oder virtuelles Zwischenbild des Objekts, welches durch ein Abbildungssystem auf den Detektor abgebildet wird. Durch die optische Simulation der Systembestandteile sowie des Gesamtsystems können verschiedene Einflussgrößen genau bestimmt werden. Zur Analyse werden dafür die Punktbildfunktion (PSF) in lateraler sowie in axialer Richtung (Schärfentiefe im Objektraum) und die Wellenaberrationen (WA) der Strahlenbündel bestimmt.},
author = {Loosen, Florian and Iff, Wolfgang and Lindlein, Norbert and Donner, Klaus},
booktitle = {Proceeding, 115. Jahrestagung der DGaO},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {DGaO},
title = {{Telezentrischer} {Linienscanner} auf {Basis} eines {Ringfächenspiegels} zur {Oberflächenanalyse} von {Bauteilen}},
venue = {Karlsruhe},
volume = {115},
year = {2014}
}
@inproceedings{faucris.276458338,
author = {Averchenko, V. A. and Förtsch, M. and Fischer, M. and Aiello, A. and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2015-06-21/2015-06-25},
faupublication = {yes},
isbn = {9781467374750},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Temporal} shaping of heralded photons in a resonator-assisted parametric down-conversion with modulated pump pulses},
venue = {Munich, DEU},
year = {2015}
}
@article{faucris.276448107,
abstract = {We present a method to produce pure single photons with an arbitrary designed temporal shape in a heralded way. As an indispensable resource, the method uses pairs of time-energy entangled photons. One photon of a pair undergoes temporal amplitude-phase modulation according to the desired shape. Subsequent frequency-resolved detection of the modulated photon heralds its entangled counterpart in a pure quantum state. The temporal shape of the heralded photon is indirectly affected by the modulation in the heralding arm. We derive conditions for which the shape of the heralded photon is given by the modulation function. The method can be implemented with various sources of time-energy entangled photons. In particular, using entangled photons from parametric down-conversion the method provides a simple means to generate pure shaped photons with an unprecedented broad range of temporal durations, from tenths of femtoseconds to microseconds. This shaping of single photons will push forward the implementation of scalable multidimensional quantum information protocols, efficient photon-matter coupling, and quantum control at the level of single quanta.},
author = {Averchenko, Valentin and Sych, Denis and Schunk, Gerhard and Vogl, Ulrich and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevA.96.043822},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Temporal} shaping of single photons enabled by entanglement},
volume = {96},
year = {2017}
}
@article{faucris.119517244,
abstract = {An interferometer is described which allows the fast test of acylindrical microlenses at grazing incidence. The interferometer uses two diffractive optical elements as beam splitters and beam shapers. For the test of cylinder lenses at grazing incidence a conical test wavefront is needed, which is generated by diffraction at a phase structure. One main feature is that the sensitivity only depends on the pitch of the diffractive elements. The interferometer, the fringe evaluation method, and the method to eliminate aberrations are described in detail and measurement results are presented.},
author = {Lindlein, Norbert and et al.},
author_hint = {Schreiner R. , Lindlein Norbert, Dresel T. , Schwider Johannes, Brinkmann S. , Mischo H. },
faupublication = {yes},
journal = {Optik},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.testin},
pages = {397-406},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Testing} acylindrical microlenses at grazing incidence},
volume = {111},
year = {2000}
}
@inproceedings{faucris.122416184,
abstract = {The experiment AtmoHIT, the Atmospheric Heterodyne Interferometer Test, is a precursor mission with the goal to verify a small satellite remote sensing instrument under space conditions. The satellite instrument is developed to measure temperatures in the Mesosphere/Lower-Thermosphere. Temperature measurements allow the characterization of gravity waves, which have an increasing importance in the modelling of the climate system representing one of the larger uncertanties in this field. The instrument consists of a highly miniturized and rigid Spatial Heterodyne Spectrometer (SHS), which measures the oxygen atmospheric band emission in the Mesosphere. The instrument resolves individual rotational lines whose intensities follow a Boltzmann law allowing for the derivation of temperature from the relative structure of these lines. This instrument ich characterized by its high throughput at a small form factor to perform scientific remote sensing measurements with a CubeSat. The AtmoHIT experiment is part of the Rocket Experiment for University Students campaign (REXUS 22), realised under a bilateral Agency Agreement between the German Aerospace Centre (DLR) and the Swedish National Space Board (SNSB). This contribution focuses on the developed technologies, laboratory measurements and rocket campaign results.},
author = {Deiml, Michael and Song, Rui and Fröhlich, Denis and Rottland, Björn and Wagner, Fritz and Liu, Jilin and Wroblowski, Oliver and Chen, Qiuyu and Loosen, Florian and Kaufmann, Martin and Rongen, Heinz and Neubert, Tom and Schneider, Herbert and Olschewski, Friedhelm and Knieling, Peter and Mantel, Klaus and Solheim, Brian and Shepherd, Gordon and Koppmann, Ralf and Riese, Martin},
booktitle = {23. ESA Symposium on European Rocket and Ballon Programmes and related Research},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {Proceeding, 23. ESA Symposium on European ROCKET & BALLON programmes and related research, Visby},
title = {{Test} of a remote sensing {Michelson}-interferometer for temperature {Measurements} in the {Mesosphere} on a {REXUS} {Rocket}},
venue = {Visby, Sweden},
year = {2017}
}
@inproceedings{faucris.118423624,
address = {Berlin},
author = {Wietfeld, André and Meißner, Markus and Schmauß, Bernhard and Korolkova, Natalia and Leuchs, Gerd},
booktitle = {DPG-Frühjahrstagung},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.tech.IE.LEH.theasy},
peerreviewed = {Yes},
title = {{The} {Asymmetric} {Fiber} {Sagnac} {Interferometer} as a {Possibility} of {Noise}-{Reduction} and {Puls}-{Shaping} in {Modern} {High} {Bitrate} {Telecommunication} {Systems}},
year = {2001}
}
@inproceedings{faucris.117995944,
author = {Leuchs, Gerd and et al.},
author_hint = {Meißner Markus, Wietfeld Andre, Korolkova Natalia, Schmauß Bernhard, Sizmann Andreas, Leuchs Gerd},
booktitle = {CLEO/Europe Focus Meeting Conference Digest},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.nat.dphy.optik.1optik.theasy},
pages = {235},
peerreviewed = {No},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} asymmetric fiber-{Sagnac} interferometer in a high bitrate telecommunication system},
venue = {Munich},
year = {2001}
}
@article{faucris.296598410,
abstract = {The National Aeronautics and Space Administration’s Deep Space Quantum Link mission concept enables a unique set of science experiments by establishing robust quantum optical links across extremely long baselines. Potential mission configurations include establishing a quantum link between the Lunar Gateway moon-orbiting space station and nodes on or near the Earth. This publication summarizes the principal experimental goals of the Deep Space Quantum Link. These goals, identified through a multi-year design study conducted by the authors, include long-range teleportation, tests of gravitational coupling to quantum states, and advanced tests of quantum nonlocality.},
author = {Mohageg, Makan and Mazzarella, Luca and Anastopoulos, Charis and Gallicchio, Jason and Hu, Bei-Lok and Jennewein, Thomas and Johnson, Spencer and Lin, Shih-Yuin and Ling, Alexander and Marquardt, Christoph and Meister, Matthias and Newell, Raymond and Roura, Albert and Schleich, Wolfgang P. and Schubert, Christian and Strekalov, Dmitry V. and Vallone, Giuseppe and Villoresi, Paolo and Woerner, Lisa and Yu, Nan and Zhai, Aileen and Kwiat, Paul},
doi = {10.1140/epjqt/s40507-022-00143-0},
faupublication = {yes},
journal = {EPJ Quantum Technology},
keywords = {Foundational quantum mechanics; General relativity; Quantum optics},
note = {CRIS-Team Scopus Importer:2023-04-20},
peerreviewed = {Yes},
title = {{The} deep space quantum link: prospective fundamental physics experiments using long-baseline quantum optics},
volume = {9},
year = {2022}
}
@article{faucris.213090012,
abstract = {Various nanostructures are directly written by electron-beam-induced deposition using dimethyl-gold(III)-acetylacetonate as the precursor gas. After purification, their potential applications include plasmonic devices and metamaterials. Carbon contamination of the as-written structures can be completely removed by low-temperature ozone treatment, leaving polycrystalline pure gold structures (see figure). This treatment reduces the size of the nanostructures but does not substantially alter their functional shape.},
author = {Hoeflich, Katja and Yang, Ren Bin and Berger, Andreas and Leuchs, Gerd and Christiansen, Silke},
doi = {10.1002/adma.201004114},
faupublication = {yes},
journal = {Advanced Materials},
note = {EAM Import::2019-03-12},
pages = {2657-2661},
peerreviewed = {unknown},
title = {{The} {Direct} {Writing} of {Plasmonic} {Gold} {Nanostructures} by {Electron}-{Beam}-{Induced} {Deposition}},
volume = {23},
year = {2011}
}
@article{faucris.106906624,
abstract = {We point out similarities in the evolution of different types of nonclassical light fields. Generally, Fock and cat states are considered to decay much faster under dissipation than do squeezed states. We connect measurements of the intensity correlation function of nonclassical light to the second moment of the photon number distribution function. It is shown that all these nonclassical fields behave in a similar manner when one is looking at an appropriate property. Finally it is shown how the electronic-detection noise floor, typically present in measurements of the variance of a photocurrent, can be eliminated based upon a procedure that is well-established for intensity correlation measurements. Copyright © 2005 by MAIK "Nauka/ Interperiodica" (Russia).},
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Andersen Ulrik},
faupublication = {yes},
journal = {Laser Physics},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.theeff},
pages = {129-134},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} {Effect} of {Dissipation} on {Nonclassical} {States} of the {Radiation} {Field}},
volume = {15},
year = {2005}
}
@article{faucris.111004344,
abstract = {Comparative measurement methods are used to compare the behaviour of two macroscopically identical but microscopically different object surfaces. The roughness of these surfaces can have any value. The aim of this paper is to demonstrate theoretically as well as experimentally, the effect and the limitations of the high surface roughness on the visibility of the difference correlation fringes obtained in comparative processes. © 2001 Elsevier Science Ltd. All rights reserved.},
author = {Häusler, Gerd and et al.},
author_hint = {Laszlo I., Füzessy Z., Häusler Gerd},
doi = {10.1016/S0143-8166(01)00143-9},
faupublication = {yes},
journal = {Optics and Lasers in Engineering},
keywords = {Comparative holography; Difference correlation fringes; Surface roughness; Visibility},
note = {UnivIS-Import:2015-03-09:Pub.2002.nat.dphy.optik.1optik.theeff},
pages = {39-49},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} effect of the high surface roughness in a comparative process},
volume = {37},
year = {2002}
}
@article{faucris.115993284,
abstract = {We experimentally demonstrate for the first time that a linearly polarized beam is focused to an asymmetric spot when using a high-numerical aperture focusing system. This asymmetry was predicted by Richards and Wolf in 1959 and can only be measured when a polarization-insensitive sensor is placed in the focal region. We used a specially modified photodiode in a knife-edge-type set-up to obtain highly resolved images of the total electric energy density distribution at the focus. The results are in good agreement with the predictions of a vectorial focusing theory.},
author = {Leuchs, Gerd and et al.},
author_hint = {Dorn Ralf, Quabis Susanne, Leuchs Gerd},
doi = {10.1080/0950034031000095812},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.thefoc},
pages = {1917-1926},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} focus of light-linear polarization breaks the rotational symmetry of the focal spot},
volume = {50},
year = {2003}
}
@article{faucris.115769544,
abstract = {We present numerical calculations on the field distribution in the focus of an optical system with high numerical aperture. The diffraction integrals which are based on the Debye approximation are derived and evaluated for a radially polarized input field with a doughnut-shaped intensity distribution. It is shown that this mode focusses down to a spot size significantly smaller as compared to the case of linear polarization. An experimental setup to measure the three-dimensional intensity distribution in the focal region is presented, which is based on the knife-edge method and on tomographic reconstruction.},
author = {Leuchs, Gerd and et al.},
author_hint = {Quabis Susanne, Dorn Ralf, Eberler Manfred, Glöckl Oliver, Leuchs Gerd},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.thefoc},
pages = {109-113},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} focus of light - theoretical calculation and experimental tomographic reconstruction},
volume = {72},
year = {2001}
}
@article{faucris.123434784,
abstract = {Osteocytes—the central regulators of bone remodeling—are enclosed in a network of microcavities (lacunae) and nanocanals (canaliculi) pervading the mineralized bone. In a hitherto obscure process related to aging and disease, local plugs in the lacuno-canalicular network disrupt cellular communication and impede bone homeostasis. By utilizing a suite of high-resolution imaging and physics-based techniques, it is shown here that the local plugs develop by accumulation and fusion of calcified nanospherites in lacunae and canaliculi (micropetrosis). Two distinctive nanospherites phenotypes are found to originate from different osteocytic elements. A substantial deviation in the spherites' composition in comparison to mineralized bone further suggests a mineralization process unlike regular bone mineralization. Clearly, mineralization of osteocyte lacunae qualifies as a strong marker for degrading bone material quality in skeletal aging. The understanding of micropetrosis may guide future therapeutics toward preserving osteocyte viability to maintain mechanical competence and fracture resistance of bone in elderly individuals.},
author = {Milovanovic, Petar and Zimmermann, Elizabeth A. and Scheidt, Annika Vom and Hoffmann, Björn and Sarau, George and Yorgan, Timur and Schweizer, Michaela and Amling, Michael and Christiansen, Silke and Busse, Bjoern},
doi = {10.1002/smll.201602215},
faupublication = {yes},
journal = {Small},
keywords = {biomineralization; bone cells; lacuno-canalicular network; nanospherites; osteocytes},
peerreviewed = {unknown},
title = {{The} {Formation} of {Calcified} {Nanospherites} during {Micropetrosis} {Represents} a {Unique} {Mineralization} {Mechanism} in {Aged} {Human} {Bone}},
volume = {13},
year = {2017}
}
@article{faucris.124143184,
author = {Leuchs, Gerd and et al.},
author_hint = {Sizmann Andreas, Leuchs Gerd},
faupublication = {yes},
journal = {Progress in Optics},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.theopt},
pages = {369-465},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} {Optical} {Kerr} {Effect} and {Quantum} {Optics} in {Fibres}},
volume = {39},
year = {1999}
}
@inproceedings{faucris.108799504,
author = {Kellermann, Christine and Rothau, Sergej and Lindlein, Norbert},
booktitle = {116. Jahrestagung der DGaO},
faupublication = {yes},
peerreviewed = {unknown},
publisher = {DGaO},
title = {{Theoretical} description of a method for simultaneous measurement of phase and arbitrary polarization},
venue = {Brno CZ},
volume = {116},
year = {2015}
}
@article{faucris.121373824,
abstract = {Vertical-cavity surface-emitting lasers (VCSELs) with a monolithically integrated grating in the outcoupling aperture have proven to generate a stable and predictable polarization of the emitted light. This paper provides further insight into the polarization anisotropies of grating-controlled highly multimode VCSELs by direct experimental measurements of crucial vectorial characteristics, i.e., modal dichroism and birefringence. This is achieved by a careful analysis of linewidths and peak positions of the dominant and the suppressed polarizations of the emission spectra recorded close to threshold. These experimental results allow us for the first time to compare the observed dichroism and birefringence directly with simulations performed with a fully vectorial, three-dimensional model. Large dichroisms exceeding 30 GHz, even for higher transverse modes, were found to agree very well with the simulations. Such high dichroisms clearly indicate the excellent capability of integrated surface gratings for reliable polarization control, even under extreme operation conditions. © 2007 IEEE.},
author = {Debernardi, Pierluigi and Ostermann, Johannes-Michael and Sondermann, Markus and Ackemann, Thorsten and Bava, Gian Paolo and Michalzik, Rainer},
doi = {10.1109/JSTQE.2007.904165},
faupublication = {no},
journal = {IEEE Journal of Selected Topics in Quantum Electronics},
keywords = {Electromagnetic modeling; Polarization control; Semiconductor laser; Surface grating; Vertical-cavity surface-emitting laser (VCSEL)},
pages = {1340-1348},
peerreviewed = {Yes},
title = {{Theoretical}-experimental study of the vectorial modal properties of polarization-stable multimode grating {VCSELs}},
volume = {13},
year = {2007}
}
@article{faucris.124036704,
abstract = {In this article we theoretically study the phase shift a single atom imprints onto a coherent state light beam in free space. The calculations are performed in a semiclassical framework. The key parameters governing the interaction and thus the measurable phase shift are the solid angle from which the light is focused onto the atom and the overlap of the incident radiation with the atomic dipole radiation pattern. The analysis includes saturation effects and discusses the associated Kerr-type non-linearity of a single atom.},
author = {Sondermann, Markus and Leuchs, Gerd},
doi = {10.2971/jeos.2013.13052},
faupublication = {yes},
journal = {Journal of the European Optical Society},
keywords = {Atom-photon interaction; Free space; Kerr effect; Phase shift},
peerreviewed = {Yes},
title = {{The} phase shift induced by a single atom in free space},
volume = {8},
year = {2013}
}
@article{faucris.108830744,
author = {Banzer, Peter and Neugebauer, Martin and Aiello, Andrea and Marquardt, Christoph and Lindlein, Norbert and Bauer, Thomas and Leuchs, Gerd},
faupublication = {yes},
journal = {Journal of the European Optical Society: Rapid Publications},
pages = {13032},
peerreviewed = {Yes},
title = {{The} photonic wheel - demonstration of a state of light with purely transverse angular momentum},
volume = {8},
year = {2013}
}
@article{faucris.276461031,
abstract = {Polarizers are key components in optical science and technology. Thus, understanding the action of a polarizer beyond oversimplifying approximations is crucial. In this work, we study the interaction of a polarizing interface with an obliquely incident wave experimentally. To this end, a set of Mueller matrices is acquired employing a novel procedure robust against experimental imperfections. We connect our observation to a geometric model, useful to predict the effect of polarizers on complex light fields. © 2013 Optical Society of America.},
author = {Korger, Jan and Kolb, Tobias and Banzer, Peter and Aiello, Andrea and Wittmann, Christoffer and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1364/OE.21.027032},
faupublication = {yes},
journal = {Optics Express},
note = {CRIS-Team Scopus Importer:2022-06-05},
pages = {27032-27042},
peerreviewed = {Yes},
title = {{The} polarization properties of a tilted polarizer},
volume = {21},
year = {2013}
}
@article{faucris.111711864,
abstract = {There are a number of physically different realizations of an optical amplifier and yet they all share the same fundamental quantum limit as far as their noise characteristics are concerned. We review the underlying mathematical formalism without the restriction of a minimum number of modes being involved, its physical implications and relate it to the phenomenological models for the various amplifiers. © 2006 Elsevier Inc. All rights reserved.},
author = {Leuchs, Gerd and et al.},
author_hint = {Leuchs Gerd, Andersen U.L., Fabre C.},
doi = {10.1016/S1049-250X(06)53005-8},
faupublication = {yes},
journal = {Advances in Atomic Molecular and Optical Physics},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.thequa},
pages = {139-149},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} quantum properties of multimode optical amplifiers revisited},
volume = {53},
year = {2006}
}
@article{faucris.244511675,
abstract = {Electron tunneling is associated with light emission. In order to
elucidate its generating mechanism, we provide an experimental ansatz
that employs fixed-distance epitaxial graphene as metallic electrodes.
In contrast to previous experiments, this open geometry permits an
unobscured light spread from the tunnel junction, enabling both a
reliable calibration of the visible to infrared emission spectrum and a
detailed analysis of the dependence of the parameters involved. In a
nonresonant geometry, the emitted light is perfectly characterized by a
Planck spectrum. In an electromagnetically resonant environment,
resonant radiation is added to the thermal spectrum, both being strictly
proportional in intensity. In full agreement with a simple heat
conduction model, we provide evidence that in both cases the light
emission stems from a hot electronic subsystem in interaction with its
linear electromagnetic environment. In a long-running discussion whether
the light is of thermal or electromagnetic origin, these results on
graphene nanojunctions clearly favor the thermal pictur},
author = {Ott, Christian and Götzinger, Stephan and Weber, Heiko B.},
doi = {10.1103/PhysRevResearch.2.042019},
faupublication = {yes},
journal = {Physical Review Research},
peerreviewed = {Yes},
title = {{Thermal} origin of light emission in nonresonant and resonant nanojunctions},
url = {https://link.aps.org/doi/10.1103/PhysRevResearch.2.042019},
volume = {2},
year = {2020}
}
@inproceedings{faucris.296598664,
abstract = {We present Brillouin-Mandelstam measurements of hard-to-reach, thermodynamic regimes in fully-sealed, CS2-filled liquid-core optical fibers. We investigate the Brillouin response in the positive and negative pressure regimes for isochoric and isobaric processes.},
author = {Geilen, Andreas and Popp, Alexandra and Das, Debayan and Junaid, Saher and Poulton, Christopher and Chemnitz, Mario and Marquardt, Christoph and Schmidt, M. A. and Stiller, Birgit},
booktitle = {Optics InfoBase Conference Papers},
date = {2022-10-17/2022-10-20},
doi = {10.1364/FIO.2022.JTu4A.59},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2023-04-20},
pages = {paper JTu4A.59},
peerreviewed = {unknown},
publisher = {Optica Publishing Group (formerly OSA)},
title = {{Thermodynamic} {Control} of {Nanoliter} {Volumes} of {CS2} via {Stimulated} {Brillouin} {Scattering}},
url = {https://opg.optica.org/abstract.cfm?uri=FiO-2022-JTu4A.59},
venue = {Rochester, NY},
year = {2022}
}
@article{faucris.120839444,
author = {Leuchs, Gerd and et al.},
author_hint = {Wasik G. , Leuchs Gerd},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.therol},
pages = {671-684},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{The} role of coherence in mode bistability of gas laser in inhomogenous medium},
volume = {48},
year = {2001}
}
@article{faucris.227891471,
abstract = {Coherent beam combining refers to the process of generating a bright output beam by merging independent input beams of individually diffusing relative phases by locking them to each other. We report the first quantum mechanical noise limit calculations for coherent beam combining and compare our results to quantum-limited amplification. Our coherent beam combining scheme is based on an optical Fourier transformation which renders the scheme compatible with integrated optics combined with feed-back stabilization of the relative phases. The scheme can belayed out for an arbitrary number of input beams and approaches the shot noise limit for a large number of inputs.},
author = {Müller, Christian and Sedlmeir, F. and Martynov, V. O. and Marquardt, Christoph and Andrianov, A. V. and Leuchs, Gerd},
doi = {10.1088/1367-2630/ab4292},
faupublication = {yes},
journal = {New Journal of Physics},
note = {CRIS-Team WoS Importer:2019-10-15},
peerreviewed = {Yes},
title = {{The} standard quantum limit of coherent beam combining},
volume = {21},
year = {2019}
}
@article{faucris.217021064,
abstract = {We derive a continuity equation for the evolution of the SU(2) Wigner function under nonlinear Kerr evolution. We give explicit expressions for the resulting quantum Wigner current, and discuss the appearance of the classical limit. We show that the global structure of the quantum current significantly differs from the classical one, which is clearly reflected in the form of the corresponding stagnation lines.},
author = {Yang, Popo and Valtierra, Ivan F. and Klimov, Andrei B. and Wu, Shin-Tza and Lee, Ray-Kuang and Sanchez-Soto, Luis L. and Leuchs, Gerd},
doi = {10.1088/1402-4896/aaf91b},
faupublication = {yes},
journal = {Physica Scripta},
keywords = {phase space; Wigner flow; Wigner function},
month = {Jan},
note = {CRIS-Team Scopus Importer:2019-05-07},
peerreviewed = {Yes},
title = {{The} {Wigner} flow on the sphere},
volume = {94},
year = {2019}
}
@article{faucris.205308071,
author = {Heinemann, Frank Wilhelm and Hartung, H and Dehne, Henry and Scheunemann, A.},
faupublication = {no},
journal = {Acta crystallographica. Section C, Crystal structure communications},
pages = {442-445},
peerreviewed = {unknown},
title = {{Thio}-oxalic {Acid} 2-{Amide}-1-hydrazide-2-hydrazone},
volume = {51},
year = {1995}
}
@inproceedings{faucris.294165551,
author = {Boening, Daniel and Weisenburger, Siegfried and Schomburg, Benjamin and Giller, Karin and Becker, Stefan and Griesinger, Christian and Sandoghdar, Vahid},
booktitle = {Optics InfoBase Conference Papers},
date = {2017-06-25/2017-06-29},
faupublication = {yes},
isbn = {9781509067367},
note = {CRIS-Team Scopus Importer:2023-03-27},
peerreviewed = {unknown},
publisher = {Optica Publishing Group (formerly OSA)},
title = {{Three}-dimensional angstrom resolution in fluorescence microscopy: {Insight} into protein structure},
venue = {Munich},
volume = {Part F81-EQEC 2017},
year = {2017}
}
@article{faucris.213091037,
abstract = {A hybrid metal-dielectric photonic crystal, a thin opal slab coated by a gold film, has been designed in order to exercise additional control upon the light propagation in a photonic band-gap material using extraordinary optical transmission in the corrugated gold film. The photonic and plasmonic components of the hybrid crystal are closely linked, because the photonic crystal lattice provides a spatial template for the gold film corrugation and modifies the electromagnetic vacuum in the vicinity of the gold film. Due to coupling of light diffracted in the opal lattice to surface plasmon polaritons in the metal film, the spectra and angle diagrams of transmission in hybrid structures deviate from the linear superposition of transmission functions of both hybrid components. In particular, the selective conversion of diffraction minima, and cavity mode and thickness dependence of the surface plasmon polariton-related properties have been observed. The synergy of three resonance mechanisms behind the functionality of hybrid photonic crystals provides a uniquely broad tunability of their optical properties.},
author = {Ding, Boyang and Pemble, Martyn E. and Korovin, Alexander V. and Peschel, Ulf and Romanov, Sergey},
doi = {10.1103/PhysRevB.82.035119},
faupublication = {yes},
journal = {Physical Review B},
note = {EAM Import::2019-03-12},
peerreviewed = {Yes},
title = {{Three}-dimensional photonic crystals with an active surface: {Gold} film terminated opals},
volume = {82},
year = {2010}
}
@incollection{faucris.118344424,
address = {Boston},
author = {Häusler, Gerd},
booktitle = {Handbook of Computer Vision and Applications, Vol. 1: Sensors and Imaging},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.1999.nat.dphy.optik.1optik.threed},
pages = {485-506},
peerreviewed = {Yes},
publisher = {Academic Press},
title = {{Three}-{Dimensional} {Sensors} - {Potentials} and {Limitations}},
year = {1999}
}
@article{faucris.120315184,
abstract = {We report on a novel concept for THz photomixers with high conversion efficiency up to several THz. In contrast to the conventional pin photomixer we can overcome the trade-off between either optimizing transit-time or RC-roll-off. Using quasi-ballistic transport in nano-pin-diodes the transport path can be optimized regarding both path length and transit time. Independently, the capacitance can be kept small by using a sufficiently large number of optimized nano-pin-diodes in series. The concept is presented in detail and first experimental results are reported which corroborate our theoretical expectations. © 2005 IOP Publishing Ltd.},
author = {Döhler, Gottfried and Renner, Frank and Klar, Oliver and Eckardt, Martin and Schwanhäußer, Axel and Malzer, Stefan and Driscoll, Dan and Hanson, Micah and Gossard, Art and Loata, gabriel and Löffler, Torsten and Roskos, Hartmut},
doi = {10.1088/0268-1242/20/7/007},
faupublication = {yes},
journal = {Semiconductor Science and Technology},
peerreviewed = {Yes},
title = {{THz}-photomixer based on quasi-ballistic transport},
volume = {20},
year = {2005}
}
@article{faucris.110947144,
abstract = {The Q-function of the quantum soliton in a fibre is derived in a new form suitable for the assessment of the possibilities for experimental observations of specific quantum-soliton effects. The characteristic effects of soliton evolution are associated with a cubic term in the nonlinear phase angle and appear at distances well beyond the attenuation length (long range). At the accessible distances, the nonlinear dynamics of a fundamental soliton follows essentially the single-mode dynamics (short and middle range). However, for the higher-order solitons, the form of the evolution parameter suggests strong deviations of soliton dynamics from the single-mode with a square of soliton number. The use of enhanced-nonlinearity fibres and higher-order solitons might make the experimental studies of the specific quantum-soliton features more viable.},
author = {Leuchs, Gerd and et al.},
author_hint = {Korolkova Natalia, Loudon R., Gardavsky Gerlinde, Hamilton M., Leuchs Gerd},
doi = {10.1080/09500340110036639},
faupublication = {yes},
journal = {Journal of Modern Optics},
note = {UnivIS-Import:2015-03-09:Pub.2001.nat.dphy.optik.1optik.quatim},
pages = {1339-1355},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Time} evolution of a quantum soliton in a {Kerr} medium},
volume = {48},
year = {2001}
}
@inproceedings{faucris.245145707,
abstract = {We present advances in the use of gigahertz LiNbO3 modulators enabling us programmable delays, which we will use to implement a multiplexed single-photon source, based on birefringent phase-matching in KTP waveguides.},
author = {Massaro, Marcello and Ansari, Vahid and Schlue, Fabian and Luo, Kai Hong and Herrmann, Harald and Brecht, Benjamin and Silberhorn, Christine and Dirmeier, Thomas and Marquardt, Christoph and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-05-10/2020-05-15},
doi = {10.1364/CLEO{\_}QELS.2020.FTu3C.7},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Time}-frequency multiplexed single-photon source based on {LiNbO3} modulators},
venue = {Washington, DC},
volume = {Part F182-CLEO-QELS 2020},
year = {2020}
}
@article{faucris.108273264,
abstract = {The utilization of time-reversal symmetry in designing and implementing (quantum) optical experiments has become more and more frequent over the last few years. We review the basic idea underlying time-reversal methods, illustrate it with several examples and discuss a number of implications. © 2012 The Royal Swedish Academy of Sciences.},
author = {Leuchs, Gerd and Sondermann, Markus},
doi = {10.1088/0031-8949/85/05/058101},
faupublication = {yes},
journal = {Physica Scripta},
peerreviewed = {Yes},
title = {{Time}-reversal symmetry in optics},
volume = {85},
year = {2012}
}
@inproceedings{faucris.213215561,
abstract = {Loss less propagation of longitudinal magnetic-dipole waves is predicted for regular chains of rutile particles. Rigorous T-matrix simulation techniques are applied to deduce the dispersion characteristics of the dipole waves and to optimize the properties of the closing elements in the waveguide for maximum power transmission. The proposed technique can be used to optimize the interaction between light and particle ensembles.},
author = {Zhuromskyy, Oleksandr and Peschel, Ulf},
booktitle = {7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics},
doi = {10.1109/MetaMaterials.2013.6809022},
faupublication = {yes},
note = {EAM Import::2019-03-13},
pages = {268-270},
peerreviewed = {unknown},
title = {{T}-matrix analysis of dipole waves on chains of dielectric particles},
year = {2013}
}
@inproceedings{faucris.288246145,
address = {International conference at ETH Zurich, Zurich, Switzerland},
author = {Eichler, Christopher and et al.},
author_hint = {Eichler C., Bozyigit D., Lang C., Steffen L., Fink J. M., Baur M., Filipp S., Silva M. P., Blais A., Wallraff A.},
date = {2011-09-05},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Tomography} and {Correlation} {Function} {Measurements} of {Itinerant} {Microwave} {Photons}},
venue = {nternational conference at ETH Zurich, Zurich, Switzerland},
year = {2011}
}
@inproceedings{faucris.288245643,
address = {La Thuile, Italy},
author = {Eichler, Christopher and et al.},
author_hint = {Eichler C., Bozyigit D., Lang C., Steffen L., Fink J. M., Wallraff A.},
booktitle = {Moriond 2011 - Quantum Mesoscopic Physics},
date = {2011-03-13},
faupublication = {no},
keywords = {wwwqudev},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Tomography} and {Correlation} {Function} {Measurements} of {Itinerant} {Microwave} {Photons}},
venue = {La Thuile, Italy},
year = {2011}
}
@article{faucris.276464977,
abstract = {Quadrature squeezed cylindrically polarized modes contain entanglement not only in the polarization and spatial electric field variables but also between these two degrees of freedom [C. Gabriel et al., Phys. Rev. Lett. 106, 060502 (2011)]. In this paper we present tools to generate and detect this entanglement. Experimentally we demonstrate the generation of quadrature squeezing in cylindrically polarized modes by mode transforming a squeezed Gaussian mode. Specifically, -1.2dB ± 0.1 dB of amplitude squeezing are achieved in the radially and azimuthally polarized mode. Furthermore, theoretically it is shown how the entanglement contained within these modes can be measured and how strong the quantum correlations are, depending on the measurement scheme. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2012.},
author = {Gabriel, C. and Aiello, Andrea and Berg-Johansen, S. and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1140/epjd/e2012-20735-y},
faupublication = {yes},
journal = {European Physical Journal D},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Tools} for detecting entanglement between different degrees of freedom in quadrature squeezed cylindrically polarized modes},
volume = {66},
year = {2012}
}
@inproceedings{faucris.120889824,
author = {Tuzakli, Refik and Vogel, Nicolas and Romanova, Alexandra and Romanov, Sergei G. and Peschel, Ulf},
booktitle = {European Conference on Lasers and Electro-Optics, CLEO 2015},
faupublication = {yes},
isbn = {9781467374750},
peerreviewed = {Yes},
publisher = {OSA - The Optical Society},
title = {{Topology}-dependent light transport in planar plasmonic-photonic architectures},
url = {https://www.scopus.com/record/display.uri?eid=2-s2.0-85019512968&origin=inward},
year = {2014}
}
@article{faucris.248102482,
abstract = {The knife-edge method is an established technique for profiling of even tightly focused light beams. However, the straightforward implementation of this method fails if the materials and geometry of the knife-edges are not chosen carefully or, in particular, if knife-edges are used that are made of pure materials. Artifacts are introduced in these cases in the shape and position of the reconstructed beam profile due to the interaction of the light beam under study with the knife. Hence, corrections to the standard knife-edge evaluation method are required. Here we investigate the knife-edge method for highly focused radially and azimuthally polarized beams and their linearly polarized constituents. We introduce relative shifts for those constituents and report on the consistency with the case of a linearly polarized fundamental Gaussian beam. An adapted knife-edge reconstruction technique is presented and proof-of-concept tests are shown, demonstrating the reconstruction of beam profiles.},
author = {Orlov, Sergej and Huber, Christian and Marchenko, Pavel and Banzer, Peter and Leuchs, Gerd},
doi = {10.3389/fphy.2020.527734},
faupublication = {yes},
journal = {Frontiers in Physics},
note = {CRIS-Team WoS Importer:2021-01-22},
peerreviewed = {Yes},
title = {{Toward} a {Corrected} {Knife}-{Edge}-{Based} {Reconstruction} of {Tightly} {Focused} {Higher} {Order} {Beams}},
volume = {8},
year = {2020}
}
@article{faucris.241518259,
abstract = {Owing to their immediate relevance for high precision position sensors, a variety of different sub-wavelength localization techniques has been developed in the past decades. However, many of these techniques suffer from low temporal resolution or require expensive detectors. Here, a method is presented that is based on the ultrafast detection of directionally scattered light with a quadrant photodetector operating at a large bandwidth, which exceeds the speed of most cameras. The directionality emerges due to the position dependent tailored excitation of a high-refractive index nanoparticle with a tightly focused vector beam. A spatial resolution of (Formula presented.) and a temporal resolution of (Formula presented.) is reached experimentally, which is not a fundamental but rather a technical limit. The detection scheme enables real-time particle tracking and sample stabilization in many optical setups sensitive to drifts and vibrations.},
author = {Beck, Paul and Neugebauer, Martin and Banzer, Peter},
doi = {10.1002/lpor.202000110},
faupublication = {yes},
journal = {Laser & Photonics Reviews},
keywords = {directional scattering; tight focusing; ultrafast nanolocalization; vector beams},
note = {CRIS-Team Scopus Importer:2020-08-14},
peerreviewed = {Yes},
title = {{Toward} {High}-{Speed} {Nanoscopic} {Particle} {Tracking} via {Time}-{Resolved} {Detection} of {Directional} {Scattering}},
year = {2020}
}
@inproceedings{faucris.290123581,
address = {Berlin, Germany},
author = {Eichler, Christopher},
booktitle = {WE-Heraeus-Symposium: Recent Progress in Quantum Computing},
date = {2022-11-03},
faupublication = {yes},
keywords = {wwwquantum},
peerreviewed = {unknown},
title = {{Towards} {Error}-{Corrected} {Quantum} {Computing} with {Superconducting} {Circuits}},
url = {https://www.we-heraeus-stiftung.de/veranstaltungen/recent-progress-in-quantum-computing/},
venue = {Berlin, Germany},
year = {2022}
}
@article{faucris.239260876,
abstract = {The field of optical metrology with its high precision position, rotation and wavefront sensors represents the basis for lithography and high resolution microscopy. However, the on-chip integration—a task highly relevant for future nanotechnological devices—necessitates the reduction of the spatial footprint of sensing schemes by the deployment of novel concepts. A promising route towards this goal is predicated on the controllable directional emission of the fundamentally smallest emitters of light, i.e., dipoles, as an indicator. Here we realize an integrated displacement sensor based on the directional emission of Huygens dipoles excited in an individual dipolar antenna. The position of the antenna relative to the excitation field determines its directional coupling into a six-way crossing of photonic crystal waveguides. In our experimental study supported by theoretical calculations, we demonstrate the first prototype of an integrated displacement sensor with a standard deviation of the position accuracy below λ/300 at room temperature and ambient conditions.},
author = {Bag, Ankan and Neugebauer, Martin and Mick, Uwe and Christiansen, Silke and Schulz, Sebastian A. and Banzer, Peter},
doi = {10.1038/s41467-020-16739-y},
faupublication = {yes},
journal = {Nature Communications},
note = {CRIS-Team Scopus Importer:2020-06-16},
peerreviewed = {Yes},
title = {{Towards} fully integrated photonic displacement sensors},
volume = {11},
year = {2020}
}
@article{faucris.236370624,
abstract = {Undoubtedly, Raman spectroscopy is one of the most elaborate
spectroscopy tools in materials science, chemistry, medicine and optics.
However, when it comes to the analysis of nanostructured specimens or
individual sub-wavelength-sized systems, the access to Raman spectra
resulting from different excitation schemes is usually very limited. For
instance, the excitation with an electric field component oriented
perpendicularly to the substrate plane is a difficult task.
Conventionally, this can only be achieved by mechanically tilting the
sample or by sophisticated sample preparation. Here, we propose a novel
experimental method based on the utilization of polarization tailored
light for Raman spectroscopy of individual nanostructures. As a proof of
principle, we create three-dimensional electromagnetic field
distributions at the nanoscale using tightly focused cylindrical vector
beams impinging normally onto the specimen, hence keeping the
traditional beam-path of commercial Raman systems. In order to
demonstrate the convenience of this excitation scheme, we use a
sub-wavelength diameter gallium-nitride nanostructure as a test platform
and show experimentally that its Raman spectra depend sensitively on
its location relative to the focal vector field. The observed Raman
spectra can be attributed to the interaction with transverse and pure
longitudinal electric field components. This novel technique may pave
the way towards a characterization of Raman active nanosystems, granting
direct access to growth-related parameters such as strain or defects in
the material by using the full information of all Raman mode},
author = {Grosche, Simon and Hünermann, Richard and Sarau, George and Christiansen, Silke and Boyd, Robert W. and Leuchs, Gerd and Banzer, Peter},
doi = {10.1364/OE.388943},
faupublication = {yes},
journal = {Optics Express},
peerreviewed = {Yes},
title = {{Towards} polarization-based excitation tailoring for extended {Raman} spectroscopy},
url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-28-7-10239},
year = {2020}
}
@article{faucris.284129865,
abstract = {Squeezed light—nonclassical multiphoton states with fluctuations in one of the quadrature field components below the vacuum level—has found applications in quantum light spectroscopy, quantum telecommunications, quantum computing, precision quantum metrology, detecting gravitational waves, and biological measurements. At present, quantum noise squeezing with optical fiber systems operating in the range near 1.5 μm has been mastered relatively well, but there are no fiber sources of nonclassical squeezed light beyond this range. Silica fibers are not suitable for strong noise suppression for 2 µm continuous-wave (CW) light since their losses dramatically deteriorate the squeezed state of required lengths longer than 100 m. We propose the generation multiphoton states of 2-micron 10-W class CW light with squeezed quantum fluctuations stronger than −15 dB in chalcogenide and tellurite soft glass fibers with large Kerr nonlinearities. Using a realistic theoretical model, we numerically study squeezing for 2-micron light in step-index soft glass fibers by taking into account Kerr nonlinearity, distributed losses, and inelastic light scattering processes. Quantum noise squeezing stronger than −20 dB is numerically attained for a customized As2Se3 fibers with realistic parameters for the optimal fiber lengths shorter than 1 m. For commercial As2S3 and customized tellurite glass fibers, the expected squeezing in the −20–−15 dB range can be reached for fiber lengths of the order of 1 m.},
author = {Sorokin, Arseny A. and Leuchs, Gerd and Corney, Joel F. and Kalinin, Nikolay A. and Anashkina, Elena A. and Andrianov, Alexey},
doi = {10.3390/math10193477},
faupublication = {yes},
journal = {Mathematics},
keywords = {chalcogenide fibers; Kerr nonlinearity; quantum noise squeezing; stochastic nonlinear Schrödinger equation; tellurite fibers},
note = {CRIS-Team Scopus Importer:2022-10-28},
peerreviewed = {Yes},
title = {{Towards} {Quantum} {Noise} {Squeezing} for 2-{Micron} {Light} with {Tellurite} and {Chalcogenide} {Fibers} with {Large} {Kerr} {Nonlinearity}},
volume = {10},
year = {2022}
}
@inproceedings{faucris.276451122,
abstract = {Down-converted photons from counterpropagating whispering gallery modes can be used to generate two-photon interference. We present our experimental scheme and discuss the interference visibility in case of backscattering.},
author = {Schunk, Gerhard and Shafiee, Golnoush and Vogl, Ulrich and Strekalov, Dmitry and Otterpohl, Alexander and Sedlmeir, Florian and Schwefel, Harald G.L. and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2016-09-05/2016-09-08},
doi = {10.1364/NP.2016.NTh2A.5},
faupublication = {yes},
isbn = {9781943580170},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Towards} two-photon interference with a whispering gallery photon pair source},
venue = {Sydney, AUS},
year = {2016}
}
@article{faucris.112077724,
abstract = {We present a novel fundamental phenomenon occurring when a polarized beam of light is observed from a reference frame tilted with respect to the direction of propagation of the beam. This effect has a purely geometric nature and amounts to a polarization-dependent shift or split of the beam intensity distribution evaluated as the time-averaged flux of the Poynting vector across the plane of observation. We demonstrate that such a shift is unavoidable whenever the beam possesses a nonzero transverse angular momentum. This latter result has general validity and applies to arbitrary systems such as, e.g., electronic and atomic beams. © 2009 The American Physical Societ},
author = {Aiello, Andrea and Lindlein, Norbert and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevLett.103.100401},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2009.nat.dphy.optik.1optik.transv},
pages = {100401},
peerreviewed = {Yes},
title = {{Transverse} {Angular} {Momentum} and {Geometric} {Spin} {Hall} {Effect} of {Light}},
volume = {103},
year = {2009}
}
@article{faucris.276471869,
abstract = {We develop the quantum theory of transverse angular momentum of light beams. The theory applies to paraxial and quasiparaxial photon beams in vacuum and reproduces the known results for classical beams when applied to coherent states of the field. Both the Poynting vector, alias the linear momentum, and the angular-momentum quantum operators of a light beam are calculated including contributions from first-order transverse derivatives. This permits a correct description of the energy flow in the beam and the natural emergence of both the spin and the angular momentum of the photons. We show that for collimated beams of light, orbital angular-momentum operators do not satisfy the standard commutation rules. Finally, we discuss the application of our theory to some concrete cases. © 2010 The American Physical Society.},
author = {Aiello, Andrea and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1103/PhysRevA.81.053838},
faupublication = {yes},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Transverse} angular momentum of photons},
volume = {81},
year = {2010}
}
@article{faucris.247792706,
abstract = {It is well known that the spin angular momentum of light, and therefore that of photons, is directly related to their circular polarization. Naturally, for totally unpolarized light, polarization is undefined and the spin vanishes. However, for non-paraxial light, the recently discovered transverse spin component, orthogonal to the main propagation direction, is largely independent of the polarization state of the wave. Here, we demonstrate, both theoretically and experimentally, that this transverse spin survives even in non-paraxial fields (for example, focused or evanescent) generated from totally unpolarized paraxial light. This counterintuitive phenomenon is closely related to the fundamental difference between the meanings of 'full depolarization' for two-dimensional (2D) paraxial and 3D non-paraxial fields. Our results open an avenue for studies of spin-related phenomena and optical manipulation using unpolarized light.},
author = {Eismann, Jörg and Nicholls, L. H. and Roth, D. J. and Alonso, M. A. and Banzer, Peter and Rodriguez-Fortuno, F. J. and Zayats, A. and Nori, Franco and Bliokh, K. Y.},
doi = {10.1038/s41566-020-00733-3},
faupublication = {yes},
journal = {Nature Photonics},
note = {CRIS-Team WoS Importer:2021-01-15},
peerreviewed = {Yes},
title = {{Transverse} spinning of unpolarized light},
year = {2020}
}
@article{faucris.276455866,
abstract = {A quantum key distribution (QKD) system may be probed by an eavesdropper Eve by sending in bright light from the quantum channel and analyzing the back-reflections. We propose and experimentally demonstrate a setup for mounting such a Trojan-horse attack. We show it in operation against the quantum cryptosystem Clavis2 from ID Quantique, as a proof-of-principle. With just a few back-reflected photons, Eve discerns Bob's (secret) basis choice, and thus the raw key bit in the Scarani-Acín-Ribordy-Gisin 2004 protocol, with higher than 90% probability. This would clearly breach the security of the cryptosystem. Unfortunately, Eve's bright pulses have a side effect of causing a high level of afterpulsing in Bob's single-photon detectors, resulting in a large quantum bit error rate that effectively protects this system from our attack. However, in a Clavis2-like system equipped with detectors with less-noisy but realistic characteristics, an attack strategy with positive leakage of the key would exist. We confirm this by a numerical simulation. Both the eavesdropping setup and strategy can be generalized to attack most of the current QKD systems, especially if they lack proper safeguards. We also propose countermeasures to prevent such attacks.},
author = {Jain, Nitin and Anisimova, Elena and Khan, Imran and Makarov, Vadim and Marquardt, Christoph and Leuchs, Gerd},
doi = {10.1088/1367-2630/16/12/123030},
faupublication = {yes},
journal = {New Journal of Physics},
keywords = {quantum cryptography; quantum hacking; quantum key distribution; reflectometry; security proofs; Trojan horse},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {Yes},
title = {{Trojan}-horse attacks threaten the security of practical quantum cryptography},
volume = {16},
year = {2014}
}
@article{faucris.243947614,
abstract = {We propose a novel antenna structure that funnels single photons from a single emitter with unprecedented efficiency into a low-divergence fundamental Gaussian mode. Our device relies on the concept of creating an omnidirectional photonic bandgap to inhibit unwanted large-angle emission and to enhance small-angle defect-guided-mode emission. The new photon collection strategy is intuitively illustrated, rigorously verified, and optimized by implementing an efficient, body-of-revolution, finite-difference, time-domain method for in-plane dipole emitters. We investigate a few antenna designs to cover various boundary conditions posed by fabrication processes or material restrictions and theoretically demonstrate that collection efficiencies into the fundamental Gaussian mode exceeding 95% are achievable. Our antennas are broadband, insensitive to fabrication imperfections and compatible with a variety of solid-state emitters such as organic molecules, quantum dots, and defect centers in diamond. Unidirectional and low-divergence Gaussian-mode emission from a single emitter may enable the realization of a variety of photonic quantum computer architectures as well as highly efficient lightmatter interfaces.},
author = {Li, Wancong and Morales Inostroza, Luis and Xu, Weiwang and Zhang, Pu and Renger, Jan and Götzinger, Stephan and Chen, Xue-Wen},
doi = {10.1021/acsphotonics.0c00730},
faupublication = {yes},
journal = {ACS Photonics},
note = {CRIS-Team WoS Importer:2020-10-16},
pages = {2474-2481},
peerreviewed = {Yes},
title = {{Truncated} {Metallo}-{Dielectric} {Omnidirectional} {Reflector}: {Collecting} {Single} {Photons} in the {Fundamental} {Gaussian} {Mode} with 95% {Efficiency}},
volume = {7},
year = {2020}
}
@article{faucris.262167864,
abstract = {The complex tumbling motion of spinning nonspherical objects is a topic of enduring interest, both in popular culture and in advanced scientific research. Here, we report all-optical control of the spin, precession, and nutation of vaterite microparticles levitated by counterpropagating circularly polarized laser beams guided in chiral hollow-core fiber. The circularly polarized light causes the anisotropic particles to spin about the fiber axis, while, regulated by minimization of free energy, dipole forces tend to align the extraordinary optical axis of positive uniaxial particles into the plane of rotating electric field. The end result is that, accompanied by oscillatory nutation, the optical axis reaches a stable tilt angle with respect to the plane of the electric field. The results reveal new possibilities for manipulating optical alignment through rotational degrees of freedom, with applications in the control of micromotors and microgyroscopes, laser alignment of polyatomic molecules, and study of rotational cell mechanics.},
author = {Xie, Shangran and Sharma, Abhinav and Romodina, Maria and Joly, Nicolas and Russell, Philip St. John},
doi = {10.1126/sciadv.abf6053},
faupublication = {yes},
journal = {Science Advances},
note = {CRIS-Team Scopus Importer:2021-07-30},
peerreviewed = {Yes},
title = {{Tumbling} and anomalous alignment of optically levitated anisotropic microparticles in chiral hollow-core photonic crystal fiber},
volume = {7},
year = {2021}
}
@inproceedings{faucris.229197976,
abstract = {In the last decade, the attention drawn towards electric and magnetic dipole moments induced in optical nanoantennas significantly increased because of their numerous potential applications. For example, certain combinations of electric and magnetic dipoles allow for controlling the polarization state and propagation direction of light at the nanoscale [1,2]. The underlying effects rely on specific orientations and phase relations between the individual electric and magnetic dipole moments. In a recent work [3] we presented a new addition to the toolbox of experimental nanophotonics, the so-called σ-dipole, consisting of parallel electric and magnetic dipole moments phase shifted by ±π/2. The name originates from its well-defined near- and far-field helicity of ±1 [4]. Utilizing a combination of in-phase radially and azimuthally polarized beams, tightly focused onto a silicon nanoparticle, a well-defined and controllable superposition of both σ-dipoles can be realized.},
author = {Eismann, Jörg and Neugebauer, Martin and Banzer, Peter},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872518},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Tuning} the chirality of a dipole moment in an achiral particle with structured light},
venue = {Munich},
year = {2019}
}
@inproceedings{faucris.245147197,
abstract = {We investigate the effects of fabrication parameters on the properties of a selfassembled crystalline carbon-metal hybrid. We show that attenuation and geometrical parameters can be tuned, while high birefringence is observed for all studied cases.},
author = {Butt, Muhammad and Mamonova, Daria and Manshina, Alina A. and Banzer, Peter and Leuchs, Gerd},
booktitle = {Optics InfoBase Conference Papers},
date = {2020-07-13/2020-07-16},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2020-11-13},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Tuning} the {Optical} and {Geometrical} {Properties} of {Hybrid} {Carbon} {Flakes} by {Fabrication} {Parameters}},
venue = {Washington, DC},
volume = {Part F186-NOMA 2020},
year = {2020}
}
@article{faucris.217789088,
abstract = {The use of molecules in quantum optical applications has been hampered by incoherent internal vibrations and other phononic interactions with their environment. Here we show that an organic molecule placed into an optical microcavity behaves as a coherent two-level quantum system. This allows the observation of 99% extinction of a laser beam by a single molecule, saturation with less than 0.5 photons and non-classical generation of few-photons super-bunched light. Furthermore, we demonstrate efficient interaction of the molecule–microcavity system with single photons generated by a second molecule in a distant laboratory. Our achievements represent an important step towards linear and nonlinear quantum photonic circuits based on organic platforms.},
author = {Wang, Daqing and Kelkar, Hrishikesh and Martin-Cano, Diego and Rattenbacher, Dominik and Shkarin, Alexey and Utikal, Tobias and Götzinger, Stephan and Sandoghdar, Vahid},
doi = {10.1038/s41567-019-0436-5},
faupublication = {yes},
journal = {Nature Physics},
note = {CRIS-Team Scopus Importer:2019-05-17},
pages = {483-489},
peerreviewed = {Yes},
title = {{Turning} a molecule into a coherent two-level quantum system},
volume = {15},
year = {2019}
}
@inproceedings{faucris.221874919,
abstract = {By coupling an organic molecule to a Fabry-Perot microcavity, we turn it into a coherent two-level quantum system. We further demonstrate efficient interaction of this system with single photons generated by a second molecule.},
author = {Wang, Daqing and Kelkar, Hrishikesh and Martin-Cano, Diego and Rattenbacher, Dominik and Shkarin, Alexey and Utikal, Tobias and Götzinger, Stephan and Sandoghdar, Vahid},
booktitle = {Optics InfoBase Conference Papers},
date = {2019-05-05/2019-05-10},
doi = {10.1364/CLEO-QELS.2019.FM2A.5},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2019-07-09},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Turning} an organic molecule into a coherent two-level quantum system using a tunable fabry-perot microcavity},
venue = {San Jose, CA},
volume = {Part F128-CLEO{\_}QELS 2019},
year = {2019}
}
@article{faucris.284525506,
author = {Panahiyan, Shahram and Sanchez Munoz, Carlos and Chekhova, Maria and Schlawin, Frank},
doi = {10.1103/PhysRevA.106.043706},
faupublication = {yes},
journal = {Physical Review A},
note = {CRIS-Team WoS Importer:2022-11-04},
peerreviewed = {Yes},
title = {{Two}-photon-absorption measurements in the presence of single-photon losses},
volume = {106},
year = {2022}
}
@article{faucris.121471724,
author = {Häusler, Gerd and et al.},
author_hint = {Häusler Gerd, Ettl P.},
faupublication = {yes},
journal = {Photonik},
note = {UnivIS-Import:2015-03-09:Pub.2004.nat.dphy.optik.1optik.berdie},
pages = {58-61},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Über} die kluge {Auswahl} und {Anwendung} optischer {3D}-{Sensoren}},
volume = {5},
year = {2004}
}
@article{faucris.120156344,
abstract = {Commonly, optical systems are called coherent, if a laser is used (right), and incoherent if other sources come into play (wrong). Most opticists are not aware that parasitic spatial coherence is ubiquitous, even if it is unobvious. The pretended incoherent approach may lead to significant quantitative measuring errors of illumination or reflectivity, 3d shape, size or distance. On the other hand, a favourable property of spatial coherence is that among the "speckle noise" we may reveal useful information about the object, by white light interferometry. This report will discuss simple rules to estimate the occuring errors and how to reduce spatial coherence. We will further discuss the complex signal formation in white light interferometry and roughness measurements far beyond the bandwidth limit of the observing optics.},
author = {Häusler, Gerd},
doi = {10.1117/12.516575},
faupublication = {yes},
journal = {Proceedings of SPIE},
keywords = {Coherence; Coherence radar; Measuring uncertainty; Roughness measurement; Speckle; Speckle noise; Superresolution; White light interferometry},
note = {UnivIS-Import:2015-03-09:Pub.2003.nat.dphy.optik.1optik.ubiqui},
pages = {48-52},
peerreviewed = {Yes},
title = {{Ubiquitous} coherence - boon and bale of the optical metrologist},
volume = {4933},
year = {2003}
}
@article{faucris.244303336,
abstract = {Topological properties of light attract tremendous attention in the optics communities and beyond. For instance, light beams gain robustness against certain deformations when carrying topological features, enabling intriguing applications. We report on the observation of a topological structure contained in an optical beam, i.e., a twisted ribbon formed by the electric field vector per se, in stark contrast to recently reported studies dealing with topological structures based on the distribution of the time averaged polarization ellipse. Moreover, our ribbons are spinning in time at a frequency given by the optical frequency divided by the total angular momentum of the incoming beam. The number of full twists of the ribbon is equal to the orbital angular momentum of the longitudinal component of the employed light beam upon tight focusing, which is a direct consequence of spin-to-orbit coupling. We study this angular-momentum-transfer-assisted generation of the twisted ribbon structures theoretically and experimentally for tightly focused circularly polarized beams of different vorticity, paving the way to tailored topologically robust excitations of novel coherent light-matter states.},
author = {Bauer, Thomas and Khonina, Svetlana N. and Golub, Ilya and Leuchs, Gerd and Banzer, Peter},
doi = {10.1364/OPTICA.392772},
faupublication = {yes},
journal = {Optica},
note = {CRIS-Team Scopus Importer:2020-10-23},
pages = {1228-1231},
peerreviewed = {Yes},
title = {{Ultrafast} spinning twisted ribbons of confined electric fields},
volume = {7},
year = {2020}
}
@article{faucris.244597719,
abstract = {We studied the rotational and translational diffusion of a single gold nanorod linked to a supported lipid bilayer with ultrahigh temporal resolution of two microseconds. By using a home-built polarization-sensitive dark-field microscope, we recorded particle trajectories with lateral precision of 3 nm and rotational precision of 4°. The large number of trajectory points in our measurements allows us to characterize the statistics of rotational diffusion with unprecedented detail. Our data show apparent signatures of anomalous diffusion such as sublinear scaling of the mean-squared angular displacement and negative values of angular correlation function at small lag times. However, a careful analysis reveals that these effects stem from the residual noise contributions and confirms normal diffusion. Our experimental approach and observations can be extended to investigate diffusive processes of anisotropic nanoparticles in other fundamental systems such as cellular membranes or other two-dimensional fluids.},
author = {Mazaheri, Mahdi and Ehrig, Jens and Shkarin, Alexey and Zaburdaev, Vasily and Sandoghdar, Vahid},
doi = {10.1021/acs.nanolett.0c02516},
faupublication = {yes},
journal = {Nano Letters},
keywords = {anomalous diffusion; dark-field microscopy; nanorod; rotational diffusion; scattering; single particle tracking},
note = {CRIS-Team Scopus Importer:2020-10-30},
pages = {7213-7219},
peerreviewed = {Yes},
title = {{Ultrahigh}-{Speed} {Imaging} of {Rotational} {Diffusion} on a {Lipid} {Bilayer}},
volume = {20},
year = {2020}
}
@article{faucris.121982564,
abstract = {Photonic crystal fibers as microreactors: Photonic crystal fibers can be used as microreactors (see figure). As an example, the illustration shows the difference in size between a 10cm cuvette (left), and a photonic crystal fiber (right; not to scale).},
author = {Cubillas, Ana Maria and Schmidt, Matthias and Scharrer, Michael and Euser, Tijmen G. and Etzold, Bastian and Taccardi, Nicola and Wasserscheid, Peter and Russell, Philip St. John},
doi = {10.1002/chem.201102424},
faupublication = {yes},
journal = {Chemistry - A European Journal},
pages = {1586--1590},
peerreviewed = {Yes},
title = {{Ultra}-{Low} {Concentration} {Monitoring} of {Catalytic} {Reactions} in {Photonic} {Crystal} {Fiber}},
volume = {18},
year = {2012}
}
@article{faucris.120307924,
abstract = {A report is presented on the photonic synthesis of ultra-narrow linewidth continuous-wave (CW) sub-THz signals using a gain-switching (GS) based optical frequency comb generator (OFCG), selective optical filtering and a n-i-pn-i-p superlattice photomixer. This setup provides continuous tunability with a tuning resolution in the range of 0.1Hz at 120GHz and full width at half maximum of the generated signals below the limits of the measurement setup (<10Hz). The advantages of this system make it a very good candidate for applications requiring extremely low phase noise and continuous tunability, such as high resolution spectroscopy in the sub-THz and THz range. © 2012 The Institution of Engineering and Technology.},
author = {Criado, Ruben and de Dios, Christina and Döhler, Gottfried and Preu, Sascha and Malzer, Stefan and Bauerschmidt, Sebastian and Lu, Hong and Gossard, Art and Acedo, Pablo},
doi = {10.1049/el.2012.3158},
faupublication = {yes},
journal = {Electronics Letters},
pages = {1425-1426},
peerreviewed = {Yes},
title = {{Ultra}-narrow linewidth {CW} sub-{THz} generation using {GS} based {OFCG} and n-i-pn-i-p superlattice photomixers},
volume = {48},
year = {2012}
}
@article{faucris.267624408,
abstract = {The use of laser processing for the creation of diverse morphological patterns onto the surface of polymer scaffolds represents a method for overcoming bacterial biofilm formation and inducing enhanced cellular dynamics. We have investigated the influence of ultra-short laser pa-rameters on 3D-printed poly-ε-caprolactone (PCL) and poly-ε-caprolactone/hydroxyapatite (PCL/HA) scaffolds with the aim of creating submicron geometrical features to improve the matrix biocompatibility properties. Specifically, the present research was focused on monitoring the effect of the laser fluence (F) and the number of applied pulses (N) on the morphological, chemical and mechanical properties of the scaffolds. SEM analysis revealed that the femtosecond laser treatment of the scaffolds led to the formation of two distinct surface geometrical patterns, microchannels and single microprotrusions, without triggering collateral damage to the surrounding zones. We found that the microchannel structures favor the hydrophilicity properties. As demonstrated by the com-puter tomography results, surface roughness of the modified zones increases compared to the non-modified surface, without influencing the mechanical stability of the 3D matrices. The X-ray diffraction analysis confirmed that the laser structuring of the matrices did not lead to a change in the semi-crystalline phase of the PCL. The combinations of two types of geometrical designs—wood pile and snowflake—with laser-induced morphologies in the form of channels and columns are considered for optimizing the conditions for establishing an ideal scaffold, namely, precise dimensional form, mechanical stability, improved cytocompatibility and antibacterial behavior.},
author = {Daskalova, Albena and Filipov, Emil and Angelova, Liliya and Stefanov, Radostin and Tatchev, Dragomir and Avdeev, Georgi and Sotelo, Lamborghini and Christiansen, Silke and Sarau, George and Leuchs, Gerd and Iordanova, Ekaterina and Buchvarov, Ivan},
doi = {10.3390/ma14247513},
faupublication = {yes},
journal = {Materials},
keywords = {Antibacterial structuring; Biodegradable polymers; Bone tissue engineering; Surface patterns; Ultra-short laser processing},
note = {CRIS-Team Scopus Importer:2021-12-31},
peerreviewed = {Yes},
title = {{Ultra}-short laser surface properties optimization of biocompatibility characteristics of 3d poly-ε-caprolactone and hydroxyapatite composite scaffolds},
volume = {14},
year = {2021}
}
@article{faucris.279533403,
abstract = {The mechanical response of materials to dynamic loading is often quantified by the frequency-dependent complex modulus. Probing materials directly in the frequency domain faces technical challenges such as a limited range of frequencies, long measurement times, or small sample sizes. Furthermore, many biological samples, such as cells or tissues, can change their properties upon repetitive probing at different frequencies. Therefore, it is common practice to extract the material properties by fitting predefined mechanical models to measurements performed in the time domain. This practice, however, precludes the probing of unique and yet unexplored material properties. In this report, we demonstrate that the frequency-dependent complex modulus can be robustly retrieved in a model-independent manner directly from time-dependent stress-strain measurements. While applying a rolling average eliminates random noise and leads to a reliable complex modulus in the lower frequency range, a Fourier transform with a complex frequency helps to recover the material properties at high frequencies. Finally, by properly designing the probing procedure, the recovery of reliable mechanical properties can be extended to an even wider frequency range. Our approach can be used with many state-of-the-art experimental methods to interrogate the mechanical properties of biological and other complex materials.},
author = {Abuhattum, Shada and Kuan, Hui Shun and Müller, Paul and Guck, Jochen and Zaburdaev, Vasily},
doi = {10.1016/j.bpr.2022.100054},
faupublication = {yes},
journal = {Biophysical Reports},
note = {CRIS-Team Scopus Importer:2022-08-05},
peerreviewed = {Yes},
title = {{Unbiased} retrieval of frequency-dependent mechanical properties from noisy time-dependent signals},
volume = {2},
year = {2022}
}
@article{faucris.111542904,
abstract = {A scheme for optimal Gaussian cloning of optical coherent states is proposed and experimentally demonstrated. Its optical realization is based entirely on simple linear optical elements and homodyne detection. The optimality of the presented scheme is limited only by detection inefficiencies. Experimentally, we achieved a cloning fidelity of about 65%, which almost touches the optimal value of 2/3. © 2005 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Andersen Ulrik, Josse V., Leuchs Gerd},
doi = {10.1103/PhysRevLett.94.240503},
faupublication = {yes},
journal = {Physical Review Letters},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.uncond},
pages = {240503},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Unconditional} quantum cloning of coherent states with linear optics},
volume = {94},
year = {2005}
}
@article{faucris.106399744,
abstract = {GaN microrods are used as a basis for subsequent InGaN quantum well (QW) and quantum dot deposition by metal-organic vapor phase epitaxy. The coverage of the shell along the sidewall of rods is dependent on the rod growth time and a complete coverage is obtained for shorter rod growth times. Transmission electron microscopy measurements are performed to reveal the structural properties of the InGaN layer on the sidewall facet and on the top facet. The presence of layers in the microrod and on the microrod surface will be discussed with respect to GaN and InGaN growth. A detailed model will be presented explaining the formation of multiple SiN layers and the partial and full coverage of the shell around the core. Cathodoluminescence measurements are performed to analyze the InGaN emission properties along the microrod and to study the microresonator properties of such hexagonal core-shell structures. High quality factor whispering gallery modes with [Formula: see text] are reported for the first time in a GaN microrod/InGaN non-polar QW core-shell geometry. The GaN/InGaN core-shell microrods are expected to be promising building blocks for low-threshold laser diodes and ultra-sensitive optical sensors.},
author = {Tessarek, Christian and Rechberger, Stefanie and Dieker, Christel and Heilmann, Martin and Spiecker, Erdmann and Christiansen, S. H.},
doi = {10.1088/1361-6528/aa9050},
faupublication = {yes},
journal = {Nanotechnology},
keywords = {GaN, InGaN, SiN, rods, core–shell, quantum wells, whispering gallery modes},
pages = {485601},
peerreviewed = {unknown},
title = {{Understanding} {GaN}/{InGaN} core-shell growth towards high quality factor whispering gallery modes from non-polar {InGaN} quantum wells on {GaN} rods.},
url = {http://iopscience.iop.org/article/10.1088/1361-6528/aa9050/pdf},
volume = {28},
year = {2017}
}
@article{faucris.113356144,
author = {Bronner, Patrick and Strunz, Andreas and Silberhorn, Christine and Meyn, Jan-Peter},
faupublication = {yes},
journal = {Praxis der Naturwissenschaften - Physik in der Schule},
note = {UnivIS-Import:2015-03-09:Pub.2013.nat.dphy.PI.PDP.underw},
pages = {11-14},
peerreviewed = {No},
title = {"{Und} er würfelt doch!" - {Optische} {Experimente} zum {Quantenzufall}},
volume = {62},
year = {2013}
}
@article{faucris.308447215,
abstract = {The Hong-Ou-Mandel (HOM) interference is one of the most intriguing quantum optical phenomena and crucial in performing quantum optical communication and computation tasks. Lately, twin beam emitters such as those relying on the process of parametric down-conversion (PDC) have become confident sources of heralded single photons. However, if the pump power is high enough, the pairs produced via PDC—often called signal and idler—incorporate multiphoton contributions that usually distort the investigated quantum features. Here, we derive the temporal characteristics of the HOM interference between heralded states from two independent narrowband PDC sources. Apart from the PDC multiphoton content, our treatment also takes into account effects arriving from an unbalanced beam splitter ratio and optical losses. We perform a simulation in the telecommunication wavelength range and provide a useful tool for finding the optimal choice for PDC process parameters. Our results offer insight in the properties of narrowband PDC sources and turn useful when driving quantum optical applications with them.
The influence of amplifier gain saturation in nonlinear amplifying loop mirror on simultaneous phase-preserving
regeneration of two power states has been studied. Numeri
cal simulations have shown an improvement of up to
4 dB for the first, low-power state and 8 dB for the se
cond high-power state. Compar
ed to the linear amplifier
case an improvement of 3 dB for the se
cond power state has been achieved.
},
author = {Roethlingshoefer, Tobias and Onishchukov, Georgy and Schmauß, Bernhard and Leuchs, Gerd},
booktitle = {Transparent Optical Networks (ICTON), 2011 13th International Conference on},
doi = {10.1109/ICTON.2011.5970803},
faupublication = {yes},
keywords = {2R regeneration, quadrature amplitude modulation, NALM, NOLM},
note = {lhft{\_}intern.bib::Roethlingshoefer2011a},
peerreviewed = {Yes},
publisher = {Institute of Electrical & Electronics Engineers (IEEE)},
title = {{Using} saturation effects in a nonlinear amplifying loop mirror for multilevel phase-preserving amplitude regeneration},
venue = {Stockholm},
year = {2011}
}
@article{faucris.122117424,
abstract = {Foams from high performance polymers find more and more interest. The processes to generate them can be difficult, however. It is shown how physical foaming with CO2 can be used as a first step to assess the potentials of such materials. For investigations of such kind an autoclave on a laboratory scale which allows pressure variations up to 300 bars and temperatures up to 300 degrees C was set up. The samples are saturated with supercritical carbon dioxide (s.c. CO2) which acts as a foaming agent. Depending on the process and material parameters different foam characteristics and cell morphologies were obtained and characterised. The potential of this method is demonstrated for two different classes of advanced polymer materials, thermoplastic fluoropolymers (PEP), and a silicone resin. In the case of the fluoropolymer, previously prepared films were foamed and the effects of various process parameters on the foam characteristics were investigated. Besides the general potential of foams from fluoropolymers, they are candidates for polymeric piezoelectric materials with a relatively high temperature stability. Silicone polymers possess some properties superior to common organic polymers. First results on the foaming behaviour of a silicone resin are presented.},
author = {Wolff, Friederich and Zirkel, Larissa and Sarah, Betzold and Jakob, Matthias and Verena, Maier and Nachtrab, Frank and Ceron Nicolat, Bruno and Fey, Tobias and Münstädt, Helmut},
doi = {10.3139/217.2469},
faupublication = {yes},
journal = {International Polymer Processing},
pages = {437-443},
peerreviewed = {Yes},
title = {{Using} {Supercritical} {Carbon} {Dioxide} for {Physical} {Foaming} of {Advanced} {Polymer} {Materials}},
volume = {26},
year = {2011}
}
@inproceedings{faucris.229197250,
abstract = {Many different techniques have been used to model the electromagnetic response of photonic crystal fibres (PCFs) and waveguide arrays. Here we introduce a new vectorial approach based on helical Bloch waves (hBWs) that appear in structures (such as many PCFs) that are N-fold rotationally symmetric (symmetry group Cn), i.e., they repeat perfectly in N sectors over 2π, when viewed in a cylindrical coordinate frame [1]. Helical Bloch waves can also carry optical angular momentum: a complex Bloch wave field propagates azimuthally around the axis of the structure, forming helical Bloch modes (hBMs) when a certain azimuthal resonance condition is satisfied.},
author = {Russell, Philip St. John and Chen, Yang and Roth, Paul and Wong, Gordon K. L.},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8873264},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Vector} helical bloch modes in {N}-fold rotationally symmetric waveguiding structures: {Spin} and {Azimuthal} order},
venue = {Munich},
year = {2019}
}
@article{faucris.221625031,
abstract = {We experimentally demonstrate the emergence of an azimuthally polarized vectorial vortex beam with a phase singularity upon Brewster reflection of focused circularly polarized light from a dielectric substrate. The effect originates from the polarizing properties of the Fresnel reflection coefficients described in Brewster's law. An astonishing consequence of this effect is that the reflected field's Cartesian components acquire local phase singularities at Brewster's angle. Our observations are crucial for polarization microscopy and open avenues for the generation of exotic states of light based on spin-to-orbit coupling, without the need for sophisticated optical elements.},
author = {Barczyk, Rend and Nechayev, Sergey and Butt, Muhammad Abdullah and Leuchs, Gerd and Banzer, Peter},
doi = {10.1103/PhysRevA.99.063820},
faupublication = {yes},
journal = {Physical Review A},
keywords = {Angular momentum of light, Classical optics, Geometrical & wave optics, Imaging & optical processing, Light propagation, transmission & absorption, Optical vortices, Optics & lasers, Polarization of light},
note = {CRIS-Team WoS Importer:2019-07-02},
peerreviewed = {Yes},
title = {{Vectorial} vortex generation and phase singularities upon {Brewster} reflection},
volume = {99},
year = {2019}
}
@article{faucris.111714724,
abstract = {Three different methods have been discussed to verify continuous variable entanglement of intense light beams. We demonstrate all three methods using the same setup to facilitate the comparison. The nonlinearity used to generate entanglement is the Kerr effect in optical fibers. Due to the brightness of the entangled pulses, standard homodyne detection is not an appropriate tool for the verification. However, we show that by using large asymmetric interferometers on each beam individually, two noncommuting variables can be accessed and the presence of entanglement verified via joint measurements on the two beams. Alternatively, we witness entanglement by combining the two beams on a beam splitter that yields certain linear combinations of quadrature amplitudes which suffice to prove the presence of entanglement. © 2006 The American Physical Society.},
author = {Leuchs, Gerd and et al.},
author_hint = {Glöckl O., Andersen U.L., Leuchs Gerd},
doi = {10.1103/PhysRevA.73.012306},
faupublication = {yes},
journal = {Physical Review A},
note = {UnivIS-Import:2015-03-09:Pub.2006.nat.dphy.optik.1optik.verify},
pages = {012306},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Verifying} continuous variable entanglement of intense light pulses},
volume = {73},
year = {2006}
}
@inproceedings{faucris.227101185,
author = {Rothau, Sergej and Schwider, Johannes and Mantel, Klaus and Lindlein, Norbert},
booktitle = {120. Annual Meeting of the DGaO},
faupublication = {yes},
pages = {B28},
title = {{Vermessung} konvexer, rauer {Asphären} mittels {Interferometrie} in streifender {Inzidenz}},
url = {https://www.dgao-proceedings.de/abstract/abstract{\_}only.php?id=2381},
venue = {Darmstadt},
year = {2019}
}
@article{faucris.116525244,
abstract = {We propose a method for the generation of a large variety of entangled states, encoded in the polarization degrees of freedom of N photons, within the same experimental setup. Starting with uncorrelated photons, emitted from N arbitrary single-photon sources, and using linear optical tools only, we demonstrate the creation of all symmetric states (e. g., GHZ and W states), as well as all symmetric and nonsymmetric total angular momentum eigenstates of the N-qubit compoun},
author = {Maser, Andreas and Wiegner, Ralph and Schilling, Uwe and Thiel, Christoph and von Zanthier, Joachim},
doi = {10.1103/PhysRevA.81.053842},
faupublication = {yes},
journal = {Physical Review A},
peerreviewed = {Yes},
title = {{Versatile} source of polarization-entangled photons},
volume = {81},
year = {2010}
}
@article{faucris.108499204,
abstract = {The monolithic integration of wurtzite GaN on Si via metal-organic vapor phase epitaxy is strongly hampered by lattice and thermal mismatch as well as meltback etching. This study presents single-layer graphene as an atomically thin buffer layer for c-axis-oriented growth of vertically aligned GaN nanorods mediated by nanometer-sized AlGaN nucleation islands. Nanostructures of similar morphology are demonstrated on graphene-covered Si(111) as well as Si(100). High crystal and optical quality of the nanorods are evidenced through scanning transmission electron microscopy, micro-Raman, and cathodoluminescence measurements supported by finite-difference time-domain simulations. Current-voltage characteristics revealed high vertical conduction of the as-grown GaN nanorods through the Si substrates. These findings are substantial to advance the integration of GaN-based devices on any substrates of choice that sustains the GaN growth temperatures, thereby permitting novel designs of GaN-based heterojunction device concepts.},
author = {Heilmann, Martin and Munshi, A. Mazid and Sarau, George and Göbelt, Manuela and Tessarek, Christian and Fauske, Vidar T. and van Helvoort, Antonius T. J. and Yang, Jianfeng and Latzel, Michael and Hoffmann, Bjoern and Conibeer, Gavin and Weman, Helge and Christiansen, Silke and Hoffmann, Björn},
doi = {10.1021/acs.nanolett.6b00484},
faupublication = {no},
journal = {Nano Letters},
keywords = {GaN; GaN-on-Si; graphene; MOVPE; nanorods},
pages = {3524-3532},
peerreviewed = {unknown},
title = {{Vertically} {Oriented} {Growth} of {GaN} {Nanorods} on {Si} {Using} {Graphene} as an {Atomically} {Thin} {Buffer} {Layer}},
volume = {16},
year = {2016}
}
@article{faucris.284132881,
abstract = {Numerous cell functions are accompanied by phenotypic changes in viscoelastic prop-erties, and measuring them can help elucidate higher level cellular functions in health and disease. We present a high-throughput, simple and low-cost microfluidic method for quantitatively measuring the elastic (storage) and viscous (loss) modulus of individual cells. Cells are suspended in a high-viscosity fluid and are pumped with high pressure through a 5.8 cm long and 200 µm wide microflu-idic channel. The fluid shear stress induces large, ear ellipsoidal cell deformations. In addition, the flow profile in the channel causes the cells to rotate in a tank-treading manner. From the cell deformation and tank treading frequency, we extract the frequency-dependent viscoelastic cell properties based on a theoretical framework developed by R. Roscoe [1] that describes the deformation of a viscoelastic sphere in a viscous fluid under steady laminar flow. We confirm the accuracy of the method using atomic force microscopy-calibrated polyacrylamide beads and cells. Our measurements demonstrate that suspended cells exhibit power-law, soft glassy rheological behavior that is cell-cycle-dependent and mediated by the physical interplay between the actin filament and intermediate filament networks.},
author = {Gerum, Richard and Mirzahossein, Elham and Eroles, Mar and Elsterer, Jennifer and Mainka, Astrid and Bauer, Andreas and Sonntag, Selina and Winterl, Alexander and Bartl, Johannes and Fischer, Lena and Abuhattum, Shada and Goswami, Ruchi and Girardo, Salvatore and Guck, Jochen and Schrüfer, Stefan and Ströhlein, Nadi and Nosratlo, Mojtaba and Herrmann, Harald and Schultheis, Dorothea and Rico, Felix and Müller, Sebastian Johannes and Gekle, Stephan and Fabry, Ben},
doi = {10.7554/eLife.78823},
faupublication = {yes},
journal = {eLife},
note = {CRIS-Team Scopus Importer:2022-10-28},
peerreviewed = {Yes},
title = {{Viscoelastic} properties of suspended cells measured with shear flow deformation cytometry},
volume = {11},
year = {2022}
}
@inproceedings{faucris.115599484,
address = {Sankt Augustin},
author = {Häusler, Gerd and et al.},
author_hint = {Karbacher St., Babst J., Häusler Gerd, Laboureux Xavier},
booktitle = {Proc. of Vision, Modeling and Visualization '99},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1999.nat.dphy.optik.1optik.visual},
pages = {1-8},
peerreviewed = {No},
publisher = {Infix Verlag},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Visualization} and {Detection} of {Small} {Defects} on {Car}-{Bodies}},
year = {1999}
}
@article{faucris.106844584,
abstract = {G protein-coupled receptors (GPCRs), including dopamine receptors, represent a group of important pharmacological targets. An increased formation of dopamine receptor D-2 homodimers has been suggested to be associated with the pathophysiology of schizophrenia. Selective labeling and ligand-induced modulation of dimerization may therefore allow the investigation of the pathophysiological role of these dimers. Using TIRF microscopy at the single molecule level, transient formation of homodimers of dopamine receptors in the membrane of stably transfected CHO cells has been observed. The equilibrium between dimers and monomers was modulated by the binding of ligands; whereas antagonists showed a ratio that was identical to that of unliganded receptors, agonist-bound D-2 receptor-ligand complexes resulted in an increase in dimerization. Addition of bivalent D-2 receptor ligands also resulted in a large increase in D2 receptor dimers. A physical interaction between the protomers was confirmed using high resolution cryogenic localization microscopy, with ca. 9 nm between the centers of mass.},
author = {Tabor, Alina and Weisenburger, S and Banerjee, Ashutosh and Purkayastha, Nirupam and Kaindl, Jonas and Hübner, Harald and Wei, Luxi and Groemer, Teja W. and Kornhuber, Johannes and Tschammer, Nuska and Birdsall, Nigel J.M. and Mashanov, Gregory I. and Sandoghdar, Vahid and Gmeiner, Peter},
doi = {10.1038/srep33233},
faupublication = {yes},
journal = {Scientific Reports},
pages = {33233},
peerreviewed = {Yes},
title = {{Visualization} and ligand-induced modulation of dopamine receptor dimerization at the single molecule level},
volume = {6},
year = {2016}
}
@inproceedings{faucris.229196766,
abstract = {Proteins are involved in a large number of biological processes. Apart from the field of proteomics, where ensemble studies of the entire set of proteins present in a system are carried out, detection and analysis of single proteins has become a vibrant field of research. Particularly, the study of proteins that are secreted from cells into the extracellular space is an important topic with wide implications for basic intercellular interactions and immunology. Secretory proteins are responsible for a vast amount of cellular functions involving migration, wound healing, immunological response, or intercellular communication. Challenges in the traditional methods such as immunoassays, Western blotting, mass spectrometry, or fluorescence microscopy are the need for labeling (with immunological complements, isotopes, or fluorescent markers) and the necessary processing and separation steps that hinder high temporal resolution in dynamic studies. Today, none of the existing techniques is able to detect single proteins secreted from living cells at subsecond temporal resolution without the need for labeling.},
author = {Gemeinhardt, André and König, Katharina and Nicoli, Francesca and Dahmardeh, Mahyar and Sandoghdar, Vahid},
booktitle = {2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019},
date = {2019-06-23/2019-06-27},
doi = {10.1109/CLEOE-EQEC.2019.8872994},
faupublication = {yes},
isbn = {9781728104690},
note = {CRIS-Team Scopus Importer:2019-11-15},
peerreviewed = {unknown},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
title = {{Visualizing} cellular secretion with single-protein sensitivity via interferometric scattering microscopy ({iSCAT})},
venue = {Munich},
year = {2019}
}
@article{faucris.119778824,
abstract = {Cellular secretion of proteins into the extracellular environment is an essential mediator of critical biological mechanisms, including cell-to-cell communication, immunological response, targeted delivery, and differentiation. Here, we report a novel methodology that allows for the real-time detection and imaging of single unlabeled proteins that are secreted from individual living cells. This is accomplished via interferometric detection of scattered light (iSCAT) and is demonstrated with Laz388 cells, an Epstein-Barr virus (EBV)-transformed B cell line. We find that single Laz388 cells actively secrete IgG antibodies at a rate of the order of 100 molecules per second. Intriguingly, we also find that other proteins and particles spanning ca. 100 kDa-1 MDa are secreted from the Laz388 cells in tandem with IgG antibody release, likely arising from EBV-related viral proteins. The technique is general and, as we show, can also be applied to studying the lysate of a single cell. Our results establish label-free iSCAT imaging as a powerful tool for studying the real-time exchange between cells and their immediate environment with single-protein sensitivity.},
author = {McDonald, Matthew and Gemeinhardt, André and König, Katharina and Piliarik, Marek and Schaffer, Stefanie and Völkl, Simon and Aigner, Michael and Mackensen, Andreas and Sandoghdar, Vahid},
doi = {10.1021/acs.nanolett.7b04494},
faupublication = {yes},
journal = {Nano Letters},
note = {EVALuna2:25781},
peerreviewed = {Yes},
title = {{Visualizing} {Single}-{Cell} {Secretion} {Dynamics} with {Single}-{Protein} {Sensitivity}},
year = {2017}
}
@inproceedings{faucris.121937684,
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Pfund Johannes, Schwider Johannes},
booktitle = {EOS Topical Meetings DigestSeries},
faupublication = {yes},
note = {UnivIS-Import:2015-03-05:Pub.1996.nat.dphy.optik.1optik.waveab},
pages = {14-15},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Wave} aberration measurement using microlens arrays},
volume = {9},
year = {1996}
}
@article{faucris.115727304,
abstract = {One limitation of the conventional Shack-Hartmann sensor is that the spots of each microlens have to remain in their respective subapertures. We present an algorithm that assigns the spots to their reference points unequivocally even if they are situated far outside their subaperture. For this assignment a spline function is extrapolated in successive steps of the iterative algorithm. The proposed method works in a single-shot technique and does not need any aid from mechanical devices. The reconstruction of a simulated steep aspherical wave front (∼100lλ/mm slope) is described as well as experimental results of the measurement of a spherical wave front with a huge peak-to-valley value (∼400l). The performance of the method is compared with the unwrapping method, which has been published before. © 2000 Optical Society of America.},
author = {Lindlein, Norbert and et al.},
author_hint = {Groening S., Sick B., Donner K., Pfund Johannes, Lindlein Norbert, Schwider Johannes},
doi = {10.1364/AO.39.000561},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2000.nat.dphy.optik.1optik.wavefr},
pages = {561-567},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Wave}-front reconstruction with a {Shack}-{Hartmann} sensor with an iterative spline fitting method},
volume = {39},
year = {2000}
}
@article{faucris.121186384,
abstract = {We investigate the transmission of focused beams through single subwavelength holes in a silver film. We use radially and azimuthally polarized light to excite higher-order waveguide modes as well as to match the radial symmetry of the aperture geometry. Remarkably, the transmission properties can be described by a classical waveguide model even for thicknesses of the silver film as thin as a quarter of a wavelength. © 2007 Springer-Verlag.},
author = {Banzer, Peter and Leuchs, Gerd and et al.},
author_hint = {Kindler J , Banzer Peter, Quabis Susanne, Peschel Ulf, Leuchs Gerd},
doi = {10.1007/s00340-007-2874-5},
faupublication = {yes},
journal = {Applied Physics B-Lasers and Optics},
note = {UnivIS-Import:2015-03-09:Pub.2007.nat.dphy.optik.1optik.wavegu},
pages = {517-520},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Waveguide} properties of single subwavelength holes demonstrated with radially and azimuthally polarized light},
volume = {89},
year = {2007}
}
@article{faucris.109271184,
abstract = {Holographic optical lenses based on volume gratings commonly suffer from severe aberrations due to wavelength mismatch between recording (blue-sensitive material) and application (often employing diode lasers). Here, methods are described for the precompensation of the aberrations at the recording. Both, aberrations in the phase of the reconstructed wave from the desired wave ('wave aberration'), as well as aberrations in intensity resulting from deviations from the Bragg condition during reconstruction ('Bragg aberration') need to be compensated for. The design method for generating the computer generated holograms is described which are used as precompensating elements in the recording step of the interferometrically produced holographic optical elements. The computer generated holograms are written on a laser pattern generator. Test results of our laser pattern generator are shown to demonstrate its capability for this process. The measurement of the aberrations at the design wavelength in the near infrared is a very important step because it allows to eliminate in a second recording process misadjustment errors which will occur during the first recording step. By modification of at least one of the computer generated holograms the convergence of the procedure can be achieved. © 1993 Taylor & Francis Ltd.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein N., Schwider J., Schrader M., FalkenstÖrfer O., VÖlkel R., Streibl N.},
doi = {10.1080/09500349314550701},
faupublication = {yes},
journal = {Journal of Modern Optics},
pages = {647-661},
peerreviewed = {unknown},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Wavelength} mismatch correcting elements for volume holograms written on a laser pattern generator},
volume = {40},
year = {1993}
}
@inproceedings{faucris.121559724,
abstract = {A quite simple numerical model for the wave-optical simulation of the interference in a grating lateral shearing interferometer with a periodic light source and a large lateral shear is presented. Aberrations of the collimating lens will generate a spatially varying modulation in the interference pattern. The model assumes that the light source itself is completely spatially incoherent so that only the light from each point of the light source has to be propagated wave-optically through the optical system. Then, the intensity distributions of all light source points in the detector plane can just be added. The simulations are compared to theoretical calculations of partial coherence theory and also to experimental results.},
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein N., Wunderlich S., Harder I., Mantel K., Lano M., Schwider J.},
booktitle = {Photon Management III},
doi = {10.1117/12.783245},
faupublication = {yes},
isbn = {9780819471925},
keywords = {Coherence; Grating lateral shearing interferometer; Partial coherence; Periodic light source; Shearing interferometer; Wave-optical simulation},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Wave}-optical simulation of a grating lateral shearing interferometer with a periodic incoherent light source},
venue = {Strasbourg},
volume = {6994},
year = {2008}
}
@incollection{faucris.124078944,
address = {Berlin},
author = {Lindlein, Norbert and Leuchs, Gerd},
booktitle = {Handbook of Lasers and Optics},
edition = {1},
faupublication = {yes},
note = {UnivIS-Import:2015-04-20:Pub.2007.nat.dphy.optik.1optik.waveop},
pages = {-},
peerreviewed = {unknown},
publisher = {Springer},
title = {{Wave} {Optics}},
year = {2007}
}
@inproceedings{faucris.221137044,
abstract = {For any kind of wave phenomenon one can find ways to derive the respective dispersion relation from experimental observations and measurements. This dispersion relation determines the structure of the wave equation and thus characterizes the dynamics of the respective wave. Different wave phenomena are thus governed by different differential equations. Here we want to emphasize the experimental approach to matter waves, but before doing so we will discuss and test the procedure for other types of waves, in particular water waves.},
author = {Leuchs, Gerd},
booktitle = {Proceedings of the International School of Physics "Enrico Fermi"},
date = {2016-07-08/2016-07-13},
doi = {10.3254/978-1-61499-937-9-81},
editor = {Ernst M. Rasel, Sabine Wolk, Wolfgang P. Schleich},
faupublication = {yes},
isbn = {9781614999362},
note = {CRIS-Team Scopus Importer:2019-06-21},
pages = {81-90},
peerreviewed = {unknown},
publisher = {IOS Press},
title = {{Wave} phenomena and wave equations},
venue = {Varenna},
volume = {197},
year = {2019}
}
@article{faucris.217022032,
abstract = {A spherical nanoparticle can scatter tightly focused optical beams in a spin-segmented manner, meaning that the far field of the scattered light exhibits laterally separated left- and right-handed circularly polarized components. This effect, commonly referred to as giant spin Hall effect of light, strongly depends on the position of the scatterer in the focal volume. Here, a scheme that utilizes an optical weak measurement in a cylindrical polarization basis is put forward to drastically enhance the spin-segmentation and, therefore, the sensitivity to small displacements of a scatterer. In particular, we experimentally achieve a change of the spin-splitting signal of 5% per nanometer displacement.},
author = {Neugebauer, Martin and Nechayev, Sergey and Vorndran, Martin and Leuchs, Gerd and Banzer, Peter},
doi = {10.1021/acs.nanolett.8b04219},
faupublication = {yes},
journal = {Nano Letters},
keywords = {localization; scattering; spin Hall effect; structured light; Weak measurement},
month = {Jan},
note = {CRIS-Team Scopus Importer:2019-05-07},
pages = {422-425},
peerreviewed = {Yes},
title = {{Weak} {Measurement} {Enhanced} {Spin} {Hall} {Effect} of {Light} for {Particle} {Displacement} {Sensing}},
volume = {19},
year = {2019}
}
@article{faucris.115662404,
author = {Lindlein, Norbert and et al.},
author_hint = {Lindlein Norbert, Pfund Johannes, Schwider Johannes},
faupublication = {yes},
journal = {Laser},
note = {UnivIS-Import:2015-03-05:Pub.1999.nat.dphy.optik.1optik.wellen},
pages = {28-31},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{Wellenfrontsensor} für den {Optical} {Workshop}},
volume = {5},
year = {1999}
}
@inproceedings{faucris.276460549,
abstract = {Crystalline whispering gallery resonators with strong second order nonlinearities offer highly efficient and tuneable nonlinear processes in a very compact and stable setup. I will give an introduction and review recent developments. © OSA 2013.},
author = {Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2013-07-21/2013-07-26},
faupublication = {yes},
isbn = {9781557529770},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
title = {{Whispering} gallery mode optical parametric oscillators},
venue = {USA},
year = {2013}
}
@article{faucris.116414144,
abstract = {We present a fiber-optical sensor for distance measurement of smooth and rough surfaces that is based on white-light interferometry; the sensor measures the distance from the sample surface to the sensor head. Because white light is used, the measurement is absolute. The measurement uncertainty depends not on the aperture of the optical system but only on the properties of the rough surface and is commonly ∼ 1 μm. The measurement range is approximately 1 mm. The sensor includes no mechanical moving parts; mechanical movement is replaced by the spectral decomposition of light at the interferometer output. The absence of mechanical moving parts enables a high measuring rate to be reached. © 2005 Optical Society of America.},
author = {Häusler, Gerd and et al.},
author_hint = {Pavlicek P., Häusler Gerd},
doi = {10.1364/AO.44.002978},
faupublication = {yes},
journal = {Applied Optics},
note = {UnivIS-Import:2015-03-09:Pub.2005.nat.dphy.optik.1optik.whitel},
pages = {2978-2983},
peerreviewed = {Yes},
support_note = {Author relations incomplete. You may find additional data in field 'author{\_}hint'},
title = {{White}-light interferometer with dispersion - an accurate fiber-optic sensor for the measurement of distance},
volume = {44},
year = {2005}
}
@article{faucris.227773164,
abstract = {An SU(1,1) interferometer uses a sequence of two optical parametric amplifiers for achieving sub-shot-noise sensitivity to a phase shift introduced in between. We present the first realization of a wide-field SU(1,1) interferometer, where the use of a focusing element enables spatially multimode operation within a broad angle. Over this angle, the interference phase is found to be flat. This property is important for the high sensitivity to the phase front disturbance. Further, -4.3 +/- 0.7 dB quadrature squeezing, an essential requirement to the high sensitivity, is experimentally demonstrated for plane-wave modes inside the interferometer. Such an interferometer is useful not only for quantum metrology, but also in remote sensing, enhanced sub-shot-noise imaging, and quantum information processing. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement},
author = {Frascella, Gaetano and Mikhailov, E. E. and Takanashi, N. and Zakharov, R. V. and Tikhonova, O. V. and Chekhova, Maria},
doi = {10.1364/OPTICA.6.001233},
faupublication = {yes},
journal = {Optica},
note = {CRIS-Team WoS Importer:2019-10-11},
pages = {1233-1236},
peerreviewed = {Yes},
title = {{Wide}-field {SU}(1,1) interferometer},
volume = {6},
year = {2019}
}
@inproceedings{faucris.276449367,
author = {Müller, Christian R. and Seshadreesan, Kaushik P. and Peuntinger, Christian and Leuchs, Gerd and Marquardt, Christoph},
booktitle = {Optics InfoBase Conference Papers},
date = {2017-06-25/2017-06-29},
faupublication = {yes},
isbn = {9781557528209},
note = {CRIS-Team Scopus Importer:2022-06-05},
peerreviewed = {unknown},
publisher = {OSA - The Optical Society},
title = {{Witnessing} quantum squeezing with binary {Homodyne} detection},
url = {https://opg.optica.org/abstract.cfm?uri=EQEC-2017-EB{\_}P{\_}1},
venue = {Munich, DEU},
volume = {Part F81-EQEC 2017},
year = {2017}
}
@article{faucris.297133079,
abstract = {Epsilon-near-zero (ENZ) media disclose the peculiarities of electrodynamics in the limit of infinite wavelength but nonzero frequency for experiments and applications. Theory suggests that wave interaction with obstacles and disturbances dramatically changes in this domain. To investigate the optics of those effects, we fabricated a nanostructured 2D optical ENZ multilayer waveguide that is probed with wavelength-tuned laser light via a nanoscale wave launch configuration. In this experimental framework, we directly optically measure wave propagation and diffraction in a realistic system with the level and scale of imperfection that is typical in nanooptics. As we scan the wavelength from 1.0 to 1.7 μm, we approach the ENZ regime and observe the interference pattern of a microscale Young's double slit to steeply diverge. By evaluating multiple diffraction orders we experimentally determine the effective refractive index neff and its zero-crossing as an intrinsic measured reference, which is in agreement with theoretical predictions. We further verify that the double-slit and specifically placed scattering objects become gradually invisible when approaching the ENZ regime. We also observe that light-matter interaction intensifies toward ENZ and quantify how speckle noise, caused by tiny random imperfections, increasingly dominates the optical response and blue-shifts the cutoff frequency.},
author = {Ploss, Daniel and Kriesch, Arian and Etrich, Christoph and Engheta, Nader and Peschel, Ulf},
doi = {10.1021/acsphotonics.7b00861},
faupublication = {no},
journal = {ACS Photonics},
keywords = {diffraction; double-slit; ENZ; epsilon-near-zero; noise; photonics},
note = {CRIS-Team Scopus Importer:2023-04-20},
pages = {2566-2572},
peerreviewed = {Yes},
title = {{Young}'s {Double}-{Slit}, {Invisible} {Objects} and the {Role} of {Noise} in an {Optical} {Epsilon}-near-{Zero} {Experiment}},
volume = {4},
year = {2017}
}
@article{faucris.261344413,
abstract = {We demonstrate a broadband optical parametric oscillation, using a sheet cavity, via cavity phase-matching. A 21.2 THz broad comb-like spectrum is achieved, with a uniform line spacing of 133.0 GHz, despite a relatively large dispersion of 275.4 fs(2)/mm around 1064 nm. With 22.6% high slope efficiency, and 14.9 kW peak power handling, this sheet optical parametric oscillator can be further developed for chi ((2)) comb.},
author = {Ni, Xin and Jia, Kunpeng and Wang, Xiaohan and Liu, Huaying and Guo, Jian and Huang, Shu-Wei and Yao, Baicheng and Sernicola, Nicolo and Wang, Zhenlin and Lv, Xinjie and Zhao, Gang and Xie, Zhenda and Zhu, Shi-Ning},
doi = {10.1088/0256-307X/38/6/064201},
faupublication = {yes},
journal = {Chinese Physics Letters},
note = {CRIS-Team WoS Importer:2021-07-09},
peerreviewed = {Yes},
title = {{Broadband} {Sheet} {Parametric} {Oscillator} for chi ((2)) {Optical} {Frequency} {Comb} {Generation} via {Cavity} {Phase} {Matching}},
volume = {38},
year = {2021}
}
@article{faucris.233256272,
abstract = {In a recent paper [Phys. Rev. Lett. 111, 100501 (2013)], a scheme was proposed where subsequent observers can extract unambiguous information about the initial state of a qubit, with finite joint probability of success. Here, we generalize the problem for arbitrary preparation probabilities (arbitrary priors). We discuss two different schemes: one where only the joint probability of success is maximized and another where, in addition, the joint probability of failure is also minimized. We also derive the mutual information for these schemes and show that there are some parameter regions for the scheme without minimizing the joint failure probability where, even though the joint success probability is maximum, no information is actually transmitted by Alice.},
author = {Fields, Dov and Han, Rui and Hillery, Mark and Bergou, Janos A.},
doi = {10.1103/PhysRevA.101.012118},
faupublication = {yes},
journal = {Physical Review A},
month = {Jan},
note = {CRIS-Team WoS Importer:2020-02-04},
peerreviewed = {Yes},
title = {{Extracting} unambiguous information from a single qubit by sequential observers},
volume = {101},
year = {2020}
}