Superradiance mediated by Graphene Surface Plasmons

Details Superradiance mediated by Graphene Surface Plasmons Superradiance mediated by Graphene Surface Plasmons

2012-01-31

arxiv.org/abs/1201.6492v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We demonstrate that the interaction between two emitters can be controlled by means of the e?cient excitation of surface plasmon modes in graphene. We consider graphene surface plasmons supported by either two-dimensional graphene sheets or one-dimensional graphene ribbons, showing in both cases that the coupling between the emitters can be strongly enhanced or suppressed. The super- and subradiant regimes are investigated in the reflection and transmission configurations. Importantly, the length scale of the coupling between emitters, which in vacuum is fixed by the free space wavelength, is now determined by the wavelength of the graphene surface plasmons that can be extremely short and be tuned at will via a gate voltage.

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