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arXiv · 1309.0767

Coupling light into graphene plasmons through surface acoustic waves

Jürgen Schiefele·Jorge Pedrós·Fernando Sols·Fernando Calle·Francisco Guinea
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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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Jürgen Schiefele, Jorge Pedrós, Fernando Sols, Fernando Calle, Francisco Guinea. 2013-09-03. Coupling light into graphene plasmons through surface acoustic waves. https://doi.org/10.1103/physrevlett.111.237405

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