The wide-angle perfect absorption based on the optical Tamm states

Abstract

Based on the optical Tamm states (OTSs), a metal-distributed Bragg reflector (DBR) structure is presented. The existence of optical Tamm states is demonstrated by the dip of reflectivity spectrum in photonic band gap. The properties of the optical Tamm states are investigated by applying the transfer matrix method. The effects of different metal thicknesses and angles on the absorption are studied by numerical simulation. The wide-angle perfect absorption appears when the metal thickness is 39 nm.

Keywords

Dispersion Curve / Transfer Matrix Method / Optic Express / Physical Review Letter / Apply Physic Letter

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This work has been supported by the National Natural Science Foundation of China (No.61107055).