Near infrared tunable hybrid metasurface based on graphene and localized surface plasmons

 ABSTRACT: Weak graphene plasmon is a major challenge for graphene based metasurfaces in the visible and near-infrared regions. This challenge emanates due to weak coupling between the graphene plasmons and the shorter wavelengths. This work shows numerical and theoretical designs of a hybrid metasurface that can enhance coupling between incident nearinfrared light, and induce birefringence in the structure. Additionally, tunable birefringence performance, exhibiting wave-plate function are demonstrated. The metasurface comprises of graphene, silver metal, and a glass substrate. The metal rods are integrated to act as resonant dipole antennas that convert the incident light into localized surface plasmons

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