Electrical plasmon detection in graphene waveguides
arXiv:1502.01757 · doi:10.1103/PhysRevB.91.081402
Abstract
We present a simple device architecture that allows all-electrical detection of plasmons in a graphene waveguide. The key principle of our electrical plasmon detection scheme is the non-linear nature of the hydrodynamic equations of motion that describe transport in graphene at room temperature and in a wide range of carrier densities. These non-linearities yield a dc voltage in response to the oscillating field of a propagating plasmon. For illustrative purposes, we calculate the dc voltage arising from the propagation of the lowest-energy modes in a fully analytical fashion. Our device architecture for all-electrical plasmon detection paves the way for the integration of graphene plasmonic waveguides in electronic circuits.
9 pages, 3 figures
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- Non-local transport and the Hall viscosity of 2D hydrodynamic electron liquids
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