标题：Simulation of the Transmission Characteristics of a Hexagonal Photonic Crystal Slab Etched into an Ion-implanted LiNbO_3 Waveguide
作者：Qing Huang;Jin-Hua Zhao;Xiu-Hong Liu;Peng Liu;Xue-Lin Wang
作者机构：[Huang, Q] School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China;[ Zhao, J.-H] School of Physics, Sta 更多
会议名称：Korea-China Symposium on Advanced Functional Films for Information
会议日期：AUG 17-21, 2010
来源：Journal of the Korean Physical Society
关键词：Photonic crystal slab;LiNbO_3 waveguide;Transmittance spectra;TE-like (TM-like) mode
摘要：A photonic crystal slab that was constructed as a 2D hexagonal photonic crystal with a finite depth and was etched into an ion-implanted LiNbO_3 waveguide was simulated by using the finitedifference time-domain (FDTD) method. Both the ГK-oriented and ГM-oriented propagations were simulated with the fundamental TE mode of the LiNbO_3 waveguide as the incident beam. Despite the weak vertical confinement, the transmittance spectra show that they both have quite deep stop gaps. These gaps show a good overlap. At wavelengths within the overlap region, both the line defects that we created in the ГK and the ГM directions worked very well as channel waveguides.