Graphene-based perfect optical absorbers harnessing guided mode resonances

Abstract

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.

References in corpus (4)

• Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
• Coherent Perfect Absorbers: Time-reversed Lasers
• Tunable Large Resonant Absorption in a Mid-IR Graphene Salisbury Screen
• Graphene-based absorber exploiting guided mode resonances in one-dimensional gratings

Cited by in corpus (5)

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• Magneto-tunable terahertz absorption in single-layer graphene: A general approach
• Approached vectorial model for Fano resonances in guided mode resonance gratings
• A Green function method to study thin diffraction gratings