%0 Journal Article
%T LIGHT DIFFRACTION FROM VOLUME PHASE GRATINGS IN LiKSO4 SINGLE CRYSTALS<br>LiKSO4单晶体内体位相光栅引起的光衍射现象
%A YANG HUA-GUANG
%A LI CHEN-XI
%A HUANG YU-ZHEN
%A <br>杨华光
%A 李晨曦
%A 黄玉珍
%J 物理学报
%D 1984
%I 
%X In this paper special light diffraction phenomena and diffraction bands and rings observed when a laser beam passed through a LiKSO4 single crystal are reported. These phnomena were inverstigated in various experimental conditions. It is concluded.that the phenomena are caused by volume phase gratings with wave vectors perpendicular to c axis in LiKSO4 It is tentativly assumed that a fluctuation of the elastic strain in the direction perpendicular to c axis in LiKSO4, and therefore a related fluctuation of the dielectric tensor is produced in that direction through the photoelastic effect. As a conseqence, anisotropic volume phase gratings is formed in the crystals. No explanation is given to the appearance of secondary rings both inside and outside the main diffraction as the laser beam incident nearly normal to the c axis.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1A0E75175752C94F2F9BDB3258B74DBE&yid=36250D1D6BDC99BD&vid=27746BCEEE58E9DC&iid=94C357A881DFC066&sid=C19D5524C51D7FE4&eid=6452E1221020E61F&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0