title: Graphene-based extremely wide-angle tunable metamaterial absorber.
abstract: We investigate the absorption properties of graphene-based anisotropic metamaterial structures where the metamaterial layer possesses an electromagnetic response corresponding to a near-zero permittivity. We find that through analytical and numerical studies, near perfect absorption arises over an unusually broad range of beam incidence angles. Due to the presence of graphene, the absorption is tunable via a gate voltage, providing dynamic control of the energy transmission. We show that this strongly enhanced absorption arises due to a coupling between light and a fast wave-mode propagating along the graphene/metamaterial hybrid.
authors.affiliation: Department of Physics, NTNU, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
authors.forename: Jacob
authors.initials: J
authors.lastname: Linder
authors.affiliation: Michelson Lab, Physics Division, Naval Air Warfare Center, China Lake, California 93555.
authors.forename: Klaus
authors.initials: K
authors.lastname: Halterman