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One-way surface plasmons in drift-current biased graphene

Morgado, T. A. ; Silveirinha, M. G.

One-way surface plasmons in drift-current biased graphene, Proc International Conference on Metamaterials, Photonic Crystals and Plasmonics META, Lisbon, Portugal, Vol. , pp. - , July, 2019.

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Abstract
We propose an innovative solution to break reciprocity and obtain one-way subwavelength light propagation. We theoretically demonstrate that the biasing of a graphene sheet by an electric drift current leads to the emergence of one-way surface plasmons. Our findings open interesting perspectives in nonreciprocal photonics and offer new opportunities to control the flow of light at the nanoscale.