Nonlinear light mixing by graphene plasmons
arXiv:1705.09739 · doi:10.1021/acs.nanolett.7b04114
Abstract
Graphene is known to possess strong optical nonlinearity. Its nonlinear response can be further enhanced by graphene plasmons. Here, we report a novel nonlinear electro-absorption effect observed in nanostructured graphene due to excitation of graphene plasmons. We experimentally detect and theoretically explain enhanced nonlinear mixing of near-infrared and mid-infrared light in arrays of graphene nanoribbons. Strong compression of light by graphene plasmons implies that the effect is non-local in nature and orders of magnitude larger than the conventional local graphene nonlinearity. The effect can be used in variety of applications including nonlinear light modulators, light multiplexors, light logic, and sensing devices.
15 pages, 4 figures
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- Single wavelength operating neuromorphic device based on a graphene-ferroelectric transistor
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- Ultrafast Momentum-Resolved Probing of Plasmon Thermal Dynamics with Free Electrons