Excitation of defect modes from the extended photonic band-gap structures of 1D photonic lattices

作     者：周可雅 郭忠义 Muhammad Ashfaq Ahmad 刘树田 

作者机构：Department of PhysicsHarbin Institute of Technology COMSATS Institute of Information TechnologyDepartment of Physics 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2010年第19卷第1期

页      面：284-288页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 10674038 and 10604042) the National Basic Research Program of China (Grant No. 2006CB302901) 

主　　题：optical-induced photonic lattices photonic band-gaps defect modes 

摘      要：This paper stuides numerically the model equation in a one dimensional defective photonic lattice by modifying the potential function to a periodic function. It is found that defect modes （DMs） can be regarded as Bloch modes which are excited from the extended photonie band-gap structure at Bloch wave-numbers with kx = 0. The DMs for both positive and negative defects are considered in this method.