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电光晶体研究究进进展及其对称性性研研究
引用本文:王继扬,黄林勇,覃方丽,申传英,张怀金,尹鑫,张少军,赵显,李如康.电光晶体研究究进进展及其对称性性研研究[J].物理学进展,2012,32(1):33-56.
作者姓名:王继扬  黄林勇  覃方丽  申传英  张怀金  尹鑫  张少军  赵显  李如康
作者单位:1. 山东大学晶体材料国家重点实验室,济南,250100
2. 山东大学晶体材料国家重点实验室,济南250100/中材人工晶体研究院,北京100018
3. 中国科学院理化技术研究昕,北京100080/中国石油大学理学院物理系,北京102249
4. 中国科学院理化技术研究昕,北京,100080
基金项目:国家自然科学基金重点项目51032004和91022034的资助
摘    要:由电场引起的晶体折射率的变化称为晶体的电光效应,具有电光效应的晶体称为电光晶体。利用电光效应可以制作电光Q开关等重要光电器件。晶体的电光效应及其有效利用,均与其对称性密切相关。本文在综述电光晶体研究进展的基础上,推导了不同晶系中各晶类电光效应类型及其特点,并以电光Q开关的要求为例讨论了晶体的电光效应及其对称性之间的关系。从讨论结果得出:立方晶系Td-ˉ43m,三方晶系C3v-3m,四方晶系D2d-4ˉ2m,D4v-4mm和六方晶系D3h-6ˉm2,C6v-6mm点群中相应电光系数的横向或纵向效应可能有实用价值。在考虑旋光性影响后,立方晶系T-23,三方晶系D3-32,四方晶系中S4-4ˉ,六方晶系中C3h-6ˉ等也有可能应用。但是,电光晶体的应用与许多因素相关,对称性只是其中一个基本条件。

关 键 词:电光效应  电光晶体  对称性  点群  交互效应

Progress of the electro-optic crystal research and the symmetry dependence of electro-optic effect
Wang Ji-Yang,Huang Lin-Yong,Qin Fang-Li,Shen Chuan-Ying,Zhang Huai-Jin,Yin Xin,Zhang Shao-Jun,Zhao Xian,Li Ru-Kang.Progress of the electro-optic crystal research and the symmetry dependence of electro-optic effect[J].Progress In Physics,2012,32(1):33-56.
Authors:Wang Ji-Yang  Huang Lin-Yong  Qin Fang-Li  Shen Chuan-Ying  Zhang Huai-Jin  Yin Xin  Zhang Shao-Jun  Zhao Xian  Li Ru-Kang
Institution:1.State Key Laboratory of Crystal Materials,Shandong University,Jinan,250100 2.Technical Institute of Physics and Chemistry,CAS,Beijing,100080 3.Sinoma Synthetic Crystal Institute,Beijing,100018 4.College of Science,China University of Petroleum,Beijing,102249
Abstract:The change of refractive indices induced by applied electric field in crystals is called as electro-optic(E-O) effect.Devices such as E-O Q-switches and modulators can be manufactured by using E-O crystals.The application of E-O crystals depends strongly on the symmetry of the crystal.In this paper we have reviewed recent progress on E-O crystal research,and discussed the relationships between E-O effect and symmetry.The favorable point groups for E-O application are Td — 4ˉ3m(cubic),C3v — 3m(trigonal),D2d — 4ˉ2m and D4v — 4mm(tetragonal),D3h — 6ˉm2 and C6v —6mm(hexagonal).Crystals with point group T —23(cubic),D3 —32(trigonal),S4—4ˉ(tetragonal) and C3h — ˉ6(hexagonal) may also be used when the optic-activity in the crystal can be eliminated in E-O device design.It is necessary to point out that the consideration of symmetry is one of the elementary factors for the application of E-O crystals.
Keywords:Electro-Optic (E-O) effect  E-O crystal  symmetry  point group  mutual effect
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