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Coupling light into graphene plasmons through surface acoustic waves (1309.0767v1)

Published 3 Sep 2013 in cond-mat.mes-hall, cond-mat.mtrl-sci, and physics.optics

Abstract: We propose a scheme for coupling laser light into graphene plasmons with the help of electrically generated surface acoustic waves. The surface acoustic wave forms a diffraction grating which allows to excite the long lived phonon-like branch of the hybridized graphene plasmon-phonon dispersion with infrared laser light. Our approach avoids patterning the graphene sheet, does not rely on complicated optical near-field techniques, and allows to electrically switch the coupling between far field radiation and propagating graphene plasmons.

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