▎ 摘　　要

A cavity resonator containing graphene nanopores (GNPs), along with a metallic layer (Ag, as a reflector) and a dielectric layer (SiO2, as a spacer), has been proposed for broadband wide-angle absorption of light. The GNP/ SiO2/Ag multilayers showed high significant increase in the absorption efficiency (with respect to the G/SiO2/Ag multilayer) in a broad spectral range (from ultra-violet (UV) and visible range to near-infrared (NIR)), due to the cavity resonance and absorptions induced by the oxygen-containing functional groups formed around the nanopores of graphene. The dependences of the cavity resonance absorption on the quality of the GNP layer, dimension of the cavity and the incident angle of light have been examined. It was found that the nanopores with sizes of -1 nm can induce maximum resonance absorption. The highest absorption in the UV, visible and NIR regions was found for the absorbers contained a cavity with spacers of -32, 68 and 256 nm in thickness, respectively. By changing the incidence angle of light, no significant change was observed in the absorption spectra up to angles,