BaTiO_3对称性与电光性能的研究  

Study of Symmetry and Electro-Optic Effect in BaTiO_3

作　　者：蔡玉平[1] 冯蒙丽[1] 宋春荣[1] 

机构地区：[1]军械工程学院基础部,河北石家庄050003

出　　处：《军械工程学院学报》2015年第6期72-75,共4页Journal of Ordnance Engineering College

基　　金：军队科研计划项目

摘　　要：晶体的电光效应及其有效利用,均与其对称性密切相关.分析BaTiO_3晶体结构随温度变化的变化,推导出在铁电相和顺电相相应的线性电光系数和二次电光系数,并指出其实用价值.The application of electro-optic crystals depends strongly on the symmetry of the crystals. In this paper, the changes of BaTiOa crystal structure are discussed with changes of temperature, the linear electro-optic effect of ferroelectric phase and quadratic electro-optic effect of parelectric phase are computed and its practical value in E-O device design is pointed out.

关 键 词：电光效应 对称性 晶体结构 钛酸钡 

分 类 号：O436[机械工程—光学工程]