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Proceedings Paper

Laser pulse waveform control of Dirac fermions in graphene
Author(s): S. Azar Oliaei Motlagh; Vadym Apalkov; Mark I. Stockman
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Paper Abstract

We theoretically study the Dirac fermion dynamics in a graphene monolayer in the presence of an applied ultrafast laser pulse. The pulse has the duration of a few femtoseconds and the amplitude of 0.1 - 0.5 V/Å. The waveform of the pulse is described by Hermit Gaussian polynomials with varying carrier-envelope phase. We show that the ultrafast dynamics of Dirac fermions strongly depends on the carrier-envelope phase and the frequency of the applied pulse. The ultrafast pulse generates an electric current which results in a finite transferred charge. The ultrafast field-driven current and the corresponding net transferred charge depend on the waveform of the applied pulse. Our results pave the way for the development of ultrafast information processing in the terahertz domain.

Paper Details

Date Published: 3 September 2019
PDF: 11 pages
Proc. SPIE 11091, Quantum Nanophotonic Materials, Devices, and Systems 2019, 110911C (3 September 2019); doi: 10.1117/12.2529325
Show Author Affiliations
S. Azar Oliaei Motlagh, Georgia State Univ. (United States)
Vadym Apalkov, Georgia State Univ. (United States)
Mark I. Stockman, Georgia State Univ. (United States)

Published in SPIE Proceedings Vol. 11091:
Quantum Nanophotonic Materials, Devices, and Systems 2019
Cesare Soci; Matthew T. Sheldon; Mario Agio, Editor(s)

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