Graphene-based perfect optical absorbers harnessing guided mode resonances
Grande, M. · Vincenti, M. A. · Stomeo, T. · Bianco, G. V. · de Ceglia, D. · Akozbek, N. · Petruzzelli, V. · Bruno, G. · De Vittorio, M. · Scalora, M. · Orazio, A. D
Original · EN
We numerically and experimentally investigate graphene-based optical absorbers that exploit guided mode resonances (GMRs) achieving perfect absorption over a bandwidth of few nanometers (over the visible and near-infrared ranges) with a 40-fold increase of the monolayer graphene absorption. We analyze the influence of the geometrical parameters on the absorption rate and the angular response for oblique incidence. Finally, we experimentally verify the theoretical predictions in a one-dimensional, dielectric grating and placing it near either a metallic or a dielectric mirror.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.