Abstract
In this article, we propose a new design of one-dimensional graphene-based photonic crystal (GPC). The first layer of the unit cell of the GPC consists of a dielectric wherein graphene sheets are embedded and the second layer is a dielectric medium. The transmission properties of the GPC are investigated using the transfer matrix method. Numerical calculations of the transmittance show that the suggested structure possesses a new type of the photonic band gap in the THz region that is robust for both transverse electric and magnetic polarizations. In addition, the demonstrated gap is independent of the incidence angle. Moreover, we show that the width of the gap can be tuned by the properties of the graphene sheets. The proposed structure works as a perfect stop filter, which completely blocks both polarizations, and may have many other potential applications.
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El-Naggar, S.A. Tunable terahertz omnidirectional photonic gap in one dimensional graphene-based photonic crystals. Opt Quant Electron 47, 1627–1636 (2015). https://doi.org/10.1007/s11082-014-0021-1
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DOI: https://doi.org/10.1007/s11082-014-0021-1