Document Type : Research
Author
Department of Physics, Payame Noor University, Tehran, IRAN
Abstract
In this study, the optical behavior of a three-layer photonic structure composed of graphene sheets with hyperbolic properties and an obliquely oriented optical axis was investigated in the terahertz frequency range. The phenomena were analyzed using the effective medium approximation model and the wave transfer approach. The results indicate that variations in parameters such as the graphene chemical potential, dielectric layer thicknesses, and the deviation angle of the optical axis can significantly influence the absorption and energy transmission responses for both types of incident wave polarizations. It was found that, for one of the transverse polarizations, changes in the optical axis orientation have negligible effect, whereas increasing the thickness of the first and third dielectric layers in the periodic structure reduces the bandwidth of the transmission region for both incident wave polarizations.
Keywords
)