Chinese Optics Letters, 2011, 9 (2): 022601, Published Online: Mar. 3, 2011
Positive–negative birefraction phenomenon for TM polarization in annular photonic crystal Download: 653次
环形光子晶体 等频图 双折射 有限时域差分法 260.1180 Crystal optics 350.4238 Nanophotonics and photonic crystals 350.3618 Left-handed materials 350.7420 Waves
Abstract
We propose a two-dimensional (2D) annular photonic crystal (APC) with dual equi-frequency contours (EFCs) in one band. The refractive behaviors of a Gaussian beam incident from air to the APC are analyzed by the EFC analysis and finite-difference time-domain (FDTD) method. The results show the positive-negative birefraction phenomenon for the transverse magnetic (TM) polarization in the same band occurs at the interface between air and the APC, and the surface termination of the APC has a large effect on the strength of the negatively refracted beam.
Yuan Zhang, Yifeng Shen, Jie Zhou, Yongchun Wang, Fangfang Wu, Jian Sun, Changqing Guo. Positive–negative birefraction phenomenon for TM polarization in annular photonic crystal[J]. Chinese Optics Letters, 2011, 9(2): 022601.