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Absolute band gap properties in two-dimensional photonic crystals composed of air rings in anisotropic tellurium background |
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| Authors: | B. Rezaei T. Fathollahi Khalkhali A. Soltani Vala M. Kalafi |
| Affiliation: | a Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran b Physics Department, University of Tabriz, Tabriz, Iran c Excellence Center for Photonics, University of Tabriz, Tabriz, Iran |
| Abstract: | We analyze the band gap spectra of two-dimensional photonic crystals created by square, triangular and honeycomb lattices of air rings with different geometrical shapes and orientations in anisotropic tellurium background. Specifically, five different shapes of rings (circular, hexagonal, elliptical, rectangular and square) are considered. Using the numerical plane wave method, we discuss the maximization of the absolute photonic band gap width as a function of air ring parameters with different shapes and orientations in three types of lattices. |
| Keywords: | 42.70.Qs 78.20.Ci 78.20.Bh |
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