Lightwave-controlled electron dynamics in graphene

Beitrag bei einer Tagung


Details zur Publikation

Autorinnen und Autoren: Heide C, Higuchi T, Ullmann K, Weber HB, Hommelhoff P
Herausgeber: EPJ Web Conf.
Jahr der Veröffentlichung: 2019
Tagungsband: 205
Seitenbereich: 05002


Abstract

We demonstrate that currents induced in graphene by ultrashort laser
pulses are sensitive to the exact shape of the electric-field waveform.
By increasing the field strength, we found a transition of the
light–matter interaction from the weak-field to the strong-field regime
at around 2 V/nm, where intraband dynamics influence interband
transitions. In this strong-field regime, the light-matter interaction
can be described by the wavenumber trajectories of electrons in the
reciprocal space. For linearly polarized light the electron dynamics are
governed by repeated sub-optical-cycle Landau-Zener transitions between
the valence- and conduction band, resulting in Landau-Zener-Stuckelberg
interference, whereas for circular polarized light this interference is
supressed.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Heide, Christian
Lehrstuhl für Laserphysik
Higuchi, Takuya Dr.
Lehrstuhl für Laserphysik
Hommelhoff, Peter Prof. Dr.
Lehrstuhl für Laserphysik
Ullmann, Konrad
Lehrstuhl für Angewandte Physik
Weber, Heiko B. Prof. Dr.
Lehrstuhl für Angewandte Physik


Zitierweisen

APA:
Heide, C., Higuchi, T., Ullmann, K., Weber, H.B., & Hommelhoff, P. (2019). Lightwave-controlled electron dynamics in graphene. In EPJ Web Conf. (Eds.), 205 (pp. 05002).

MLA:
Heide, Christian, et al. "Lightwave-controlled electron dynamics in graphene." Proceedings of the XXI International Conference on Ultrafast Phenomena 2018 (UP 2018) Ed. EPJ Web Conf., 2019. 05002.

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Zuletzt aktualisiert 2019-05-06 um 14:50