Abstract

In order to study the absorption characteristics of one-dimensional graphene photonic crystals, a TE wave of 300–1000 nm is analyzed theoretically and numerically based on the transfer matrix method. The effects of the incident angle, the structure of the photonic crystal, the number of graphene layers, and the refractive index of the defect layer on the absorption characteristics are analyzed. The results show that the absorption of graphene can be greatly improved by using the micro Fabry–Pérot cavity formed by the defect layer of the photonic crystal. The peak, the position, and the bandwidth of the absorbance can be adjusted by changing the above-mentioned parameters of the photonic crystal. This study provides a way to expand the application of photonic crystals.

© 2021 Optical Society of America

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