Influence of disorder and deformation on the optical properties of a two-dimensional photonic crystal waveguide  

作　　者：孙文倩 刘玉敏 王东林 韩利红 郭璇 俞重远 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications)

出　　处：《Chinese Physics B》2013年第1期226-230,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 60908028, 60971068, 10979065, and 61275201);the Fundamental Research Funds for the Central Universities of China (Grant Nos. 2011RC0402 and 2012RC0402);the Program for New Century Excellent Talents in University of China (Grant No. NCET-10-0261)

摘　　要：We investigate the effect of disorder and mechanical deformation on a two-dimensional photonic crystal waveguide. The dispersion characteristics and transmittance of the waveguide are studied using the finite element method. Results show that the geometric change of the dielectric material perpendicular to the light propagation direction has a larger influence on the waveguide characteristics than that parallel to the light propagation direction. Mechanical deformation has an obvious influence on the performance of the waveguide. In particular, longitudinal deformed structure exhibits distinct optical characteristics from the ideal one. Studies on this work will provide useful guideline to the fabrication and practical applications based on photonic crystal waveguides.We investigate the effect of disorder and mechanical deformation on a two-dimensional photonic crystal waveguide. The dispersion characteristics and transmittance of the waveguide are studied using the finite element method. Results show that the geometric change of the dielectric material perpendicular to the light propagation direction has a larger influence on the waveguide characteristics than that parallel to the light propagation direction. Mechanical deformation has an obvious influence on the performance of the waveguide. In particular, longitudinal deformed structure exhibits distinct optical characteristics from the ideal one. Studies on this work will provide useful guideline to the fabrication and practical applications based on photonic crystal waveguides.

关 键 词：photonic crystal waveguide DEFORMATION DISORDER TRANSMITTANCE 

分 类 号：TN25[电子电信—物理电子学]