Laser-induced quantum pumping in graphene
Mesoscale and Nanoscale Physics
2012-10-12 v1
Abstract
We investigate non-adiabatic electron pumping in graphene generated by laser irradiation with linear polarization parallel or perpendicular to the transport direction. Transport is dominated by the spatially asymmetric excitation of electrons from evanescent into propagating modes. For a laser with parallel polarization, the pumping response exhibits a subharmonic resonant enhancement which directly probes the Fermi energy; no such enhancement occurs for perpendicular polarization. The resonance mechanism relies on the chirality of charge carriers in graphene.
Cite
@article{arxiv.1206.4411,
title = {Laser-induced quantum pumping in graphene},
author = {Pablo San-Jose and Elsa Prada and Henning Schomerus and Sigmund Kohler},
journal= {arXiv preprint arXiv:1206.4411},
year = {2012}
}
Comments
3 pages, 3 figures