Study on electro-optic properties of two-dimensional PLZT photonic crystal band structure  

作　　者：童凯 武校刚 汪梅婷 

机构地区：[1]College of Electrical Engineering,Yanshan University [2]College of vocational technology,Yanshan University

出　　处：《Optoelectronics Letters》2011年第4期282-286,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.6087047) ;the Doctoral Fund of Ministry of Education of China (No.20070216004)

摘　　要：The band characteristics of two-dimensional(2D) lead lanthanum zirconate titanate(PLZT) photonic crystals are analyzed by finite element method.The electro-optic effect of PLZT can cause the refractive index change when it is imposed by the applied electric field,and the band structure of 2D photonic crystals based on PLZT varies accordingly.The effect of the applied electric field on the structural characteristics of the first and second band gaps in 2D PLZT photonic crystals is analyzed in detail.And the results show that for each band gap,the variations of start wavelength,cut-off wavelength and bandwidth are proportional to quadratic of the electric field.

关 键 词：Crystal structure Electric fields Electrooptical devices Energy gap Finite element method Refractive index Two dimensional 

分 类 号：O482.7[理学—固体物理]