Abstract

We have investigated an obvious plasmon-induced transparency (PIT) that results from the destructive interference between the bright and dark modes in a novel planar metamaterial structure. Two different kinds of graphene, respectively, play the parts of optical bright and dark modes. We have investigated the spectral location and line shape and find that they can be successfully tuned by shifting the Fermi energy. We have theoretically studied its resonance mechanism, and the numerical simulation data are well verified by the theoretical analytical results. Furthermore, the absorption rate is up to 50%. Thus, the narrow PIT phenomena render our nano plasmonic system ideal for an excellent modulator and novel absorber.

© 2018 Optical Society of America

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