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Absolute photonic band gaps in a two-dimensional photonic crystal with hollow anisotropic rods |
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| Authors: | Tao Pan Fei Zhuang |
| Affiliation: | a Department of Physics, University of Science and Technology of Suzhou, Suzhou 215009, China b Institute of Condensed matter, Department of Physics, Hangzhou Teachers college, Hangzhou 310012, China c Department of Physics, Suzhou University, Suzhou 215006, China |
| Abstract: | The plane-wave expansion method is used to calculate photonic band gaps for two structures with hollow anisotropic tellurium (Te) rods. Both structures are found to have absolute band gaps at the low- and high-frequency regions. Compared with the photonic crystal with solid Te rods, the photonic crystal with hollow Te rods has a large absolute band gap at the high-frequency region: for the triangular lattice of oval hollow Te rods, there is an absolute band gap of 0.058we (we=2πc/a), and for the square lattice of square hollow Te rods, there is an absolute band gap of 0.056we. |
| Keywords: | 42.70.Qs |
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