Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum

Beitrag in einer Fachzeitschrift
(Letter)


Details zur Publikation

Autor(en): Kozak M, Eckstein T, Schönenberger N, Hommelhoff P
Zeitschrift: Nature Physics
Jahr der Veröffentlichung: 2018
Band: 14
Heftnummer: 14
Seitenbereich: 121–125
ISSN: 1745-2481


Abstract


In the early days of quantum mechanics Kapitza and Dirac predicted that matter waves would scatter off the optical intensity grating formed by two counter-propagating light waves1. This interaction, driven by the ponderomotive potential of the optical standing wave, was both studied theoretically and demonstrated experimentally for atoms2 and electrons3,4,5. In the original version of the experiment1,5, only the transverse momentum of particles was varied, but their energy and longitudinal momentum remained unchanged after the interaction. Here, we report on the generalization of the Kapitza–Dirac effect. We demonstrate that the energy of sub-relativistic electrons is strongly modulated on the few-femtosecond timescale via the interaction with a travelling wave created in vacuum by two colliding laser pulses at different frequencies. This effect extends the possibilities of temporal control of freely propagating particles with coherent light and can serve the attosecond ballistic bunching of electrons6, or for the acceleration of neutral atoms or molecules by light.


FAU-Autoren / FAU-Herausgeber

Hommelhoff, Peter Prof. Dr.
Lehrstuhl für Laserphysik
Kozak, Martin
Lehrstuhl für Laserphysik
Schönenberger, Norbert
Lehrstuhl für Laserphysik


Zitierweisen

APA:
Kozak, M., Eckstein, T., Schönenberger, N., & Hommelhoff, P. (2018). Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum. Nature Physics, 14(14), 121–125. https://dx.doi.org/10.1038/nphys4282

MLA:
Kozak, Martin, et al. "Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum." Nature Physics 14.14 (2018): 121–125.

BibTeX: 

Zuletzt aktualisiert 2018-28-06 um 14:53