High visibility in two-color above-threshold photoemission from tungsten nanotips in a coherent control scheme

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Paschen T, Förster M, Krüger M, Lemell C, Wachter G, Libisch F, Madlener T, Burgdörfer J, Hommelhoff P
Zeitschrift: Journal of Modern Optics
Verlag: Taylor and Francis Ltd.
Jahr der Veröffentlichung: 2017
Band: 64
Heftnummer: 10-11
Seitenbereich: 1054-1060
ISSN: 1362-3044


Abstract


In this article, we present coherent control of above-threshold photoemission from a tungsten nanotip achieving nearly perfect modulation. Depending on the pulse delay between fundamental ((Formula presented.)) and second harmonic ((Formula presented.)) pulses of a femtosecond fiber laser at the nanotip, electron emission is significantly enhanced or depressed during temporal overlap. Electron emission is studied as a function of pulse delay, optical near-field intensities, DC bias field and final photoelectron energy. Under optimized conditions modulation amplitudes of the electron emission of 97.5% are achieved. Experimental observations are discussed in the framework of quantum-pathway interference supported by local density of states simulations.


FAU-Autoren / FAU-Herausgeber

Förster, Michael Dr.
Lehrstuhl für Laserphysik
Hommelhoff, Peter Prof. Dr.
Lehrstuhl für Laserphysik
Krüger, Michael
Lehrstuhl für Laserphysik
Paschen, Timo
Lehrstuhl für Laserphysik


Autor(en) der externen Einrichtung(en)
Vienna University of Technology


Zitierweisen

APA:
Paschen, T., Förster, M., Krüger, M., Lemell, C., Wachter, G., Libisch, F.,... Hommelhoff, P. (2017). High visibility in two-color above-threshold photoemission from tungsten nanotips in a coherent control scheme. Journal of Modern Optics, 64(10-11), 1054-1060. https://dx.doi.org/10.1080/09500340.2017.1281453

MLA:
Paschen, Timo, et al. "High visibility in two-color above-threshold photoemission from tungsten nanotips in a coherent control scheme." Journal of Modern Optics 64.10-11 (2017): 1054-1060.

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Zuletzt aktualisiert 2018-10-11 um 20:50