Experimental evidence of photonic crystal waveguides with wide bandwidth in two-dimensional Al2O3 rods array

作     者：王勇 张登国 徐世祥 许彪刚 董政 黄檀 

作者机构：College of Optoeleetronie Engineering Shenzhen University Shenzhen 518060 China College of Electronic Science and Technology Shenzhen University Shenzhen 518060 China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2017年第15卷第6期

页      面：82-86页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China under Grant No.61171006 

主　　题：photonic bandwidth waveguide maintain validate microwave numerically shaped transmitted isolation 

摘      要：A cross-shaped photonic crystal waveguide formed by a square lattice Al_2O_3 rods array is numerically and experimentally investigated. The band gap of the TE mode for the photonic crystals and transmission characteristics of waveguides are calculated by the plane wave expansion method and the finite element *** perform the experiments in the microwave regime to validate the numerical results. The measured reflection and transmission characteristics of the photonic crystals show a large band gap between 8.62 and 11.554 GHz（relative bandwidth is 29.34%）. The electromagnetic waves are transmitted stably in the waveguides, and the transmission characteristics maintain a high level in the band gap.