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Exact solution for square-wave grating covered with graphene: Surface plasmon-polaritons in the THz range

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 نشر من قبل Nuno Peres
 تاريخ النشر 2012
  مجال البحث فيزياء
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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 grating with a graphene sheet presenting an induced periodic modulation of the conductivity is also discussed.



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