title: Exact solution for square-wave grating covered with graphene: surface plasmon-polaritons in the terahertz range.
abstract: We provide an analytical solution to the problem of scattering of electromagnetic radiation by a square-wave grating with a flat graphene sheet on top. We show that for deep groves there is a strong plasmonic response, with light absorption in the graphene sheet reaching more than 45% due to the excitation of surface plasmon-polaritons. The case of a grating with a graphene sheet presenting an induced periodic modulation of the conductivity is also discussed.
authors: Department of Physics and Center of Physics, University of Minho, Braga, Portugal. peres@fisica.uminho.pt
authors: N M R
authors: NM
authors: Peres
authors: Yu V
authors: YV
authors: Bludov
authors: Aires
authors: A
authors: Ferreira
authors: M I
authors: MI
authors: Vasilevskiy