Laser-induced quantum pumping in graphene

San Jose, Pablo and Prada, Elsa and Schomerus, Henning and Kohler, Sigmund (2012) Laser-induced quantum pumping in graphene. Applied Physics Letters, 101 (15). ISSN 0003-6951

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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.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3101
Subjects:
ID Code:
61503
Deposited By:
Deposited On:
02 Jan 2013 16:22
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2020 10:13