Spatiotemporal sampling of near-petahertz vortex fields

Blöchl J, Schoetz J, Maliakkal A, Šreibere N, Wang Z, Rosenberger P, Hommelhoff P, Staudte A, Corkum PB, Bergues B, Kling MF (2022)

Publication Language: English

Publication Type: Journal article, Letter

Publication year: 2022

Journal

Optica Optical Society of America

Book Volume: 9

Pages Range: 755-761

Journal Issue: 7

URI: https://opg.optica.org/optica/fulltext.cfm?uri=optica-9-7-755&id=477728

DOI: 10.1364/OPTICA.459612

Abstract

Measuring the field of visible light with high spatial resolution has been challenging, as many established methods only detect a focus-averaged signal. Here, we introduce a near-field method for optical field sampling that overcomes that limitation by employing the localization of the enhanced near-field of a nanometric needle tip. A probe field perturbs the photoemission from the tip, which is induced by a pump pulse, generating a field-dependent current modulation that can easily be captured with our electronic detection scheme. The approach provides reliable characterization of near-petahertz fields. We show that not only the spiral wavefront of visible femtosecond light pulses carrying orbital angular momentum (OAM) can be resolved but also the field evolution with time in the focal plane. Additionally, our method is polarization sensitive, which makes it applicable to vectorial field reconstruction.

Authors with CRIS profile

Peter Hommelhoff Lehrstuhl für Laserphysik

Involved external institutions

Ludwig-Maximilians-Universität (LMU) DE Germany (DE) University of Ottawa CA Canada (CA) Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik DE Germany (DE)

How to cite

APA:

Blöchl, J., Schoetz, J., Maliakkal, A., Šreibere, N., Wang, Z., Rosenberger, P.,... Kling, M.F. (2022). Spatiotemporal sampling of near-petahertz vortex fields. Optica, 9(7), 755-761. https://doi.org/10.1364/OPTICA.459612

MLA:

Blöchl, Johannes, et al. "Spatiotemporal sampling of near-petahertz vortex fields." Optica 9.7 (2022): 755-761.

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