Band Structure of a Two-Dimensional Photonic Crystal with a
Triangular Lattice of Anisotropic Elliptic Cylinders
ZHUANG Fei1,3, WU Liang1, XIAO San-Shui1, HE Sai-Ling1,2
1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Department of Electromagnetic Theory, Royal Institute of Technology, S-100 44 Stockholm, Sweden
3Department of Physics, Hangzhou Teacher’s College, Hangzhou 310012
Band Structure of a Two-Dimensional Photonic Crystal with a
Triangular Lattice of Anisotropic Elliptic Cylinders
1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Department of Electromagnetic Theory, Royal Institute of Technology, S-100 44 Stockholm, Sweden
3Department of Physics, Hangzhou Teacher’s College, Hangzhou 310012
Abstract： The plane-wave expansion method is used to calculate the band structure of a two-dimensional photonic crystal formed by a triangular lattice of anisotropic elliptic cylinders. After optimizing the parameters of the elliptic cylinders, we find a large bandgap (about 0.0449 ωe, ωe = 2πc/a) at high frequencies beside a coexisting large absolute gap (about 0.035 ωe) at low frequencies. Numerical results show that the optimal design is very stable under any parameter pertubation.
ZHUANG Fei;WU Liang;XIAO San-Shui;HE Sai-Ling;. Band Structure of a Two-Dimensional Photonic Crystal with a
Triangular Lattice of Anisotropic Elliptic Cylinders[J]. 中国物理快报, 2002, 19(1): 73-75.
ZHUANG Fei, WU Liang, XIAO San-Shui, HE Sai-Ling,. Band Structure of a Two-Dimensional Photonic Crystal with a
Triangular Lattice of Anisotropic Elliptic Cylinders. Chin. Phys. Lett., 2002, 19(1): 73-75.
2002, Vol. 19 
