%0 Journal Article
%T PERTURBATIVE ANALYSIS OF PHOTOREFRACTIVE MOVING GRATING AT LARGE MODULATION DEPTHS<br>大调制度下光折变运动光栅的微扰分析
%A FENG YU-WEN
%A ZHOU ZHONG-XIANG
%A JIANG YONG-YUAN
%A SUN XIU-DONG
%A XU KE-BIN
%A <br>冯玉文
%A 周忠祥
%A 姜永远
%A 孙秀冬
%A 许克彬
%J 物理学报
%D 1998
%I 
%X We have discussed the recording of moving grating in photorefractive materials at large modulation depths using hopping model.The analytical expressions of the first three-order spatial charge field are presented which describe the nonstatic recording of the moving fringes.And the dependence of the space charge field on the veloctiy of the moving fringes is discussed for non diffusive field.We found that the higher-order harmonics of the space charge field for low diffusive field can be selectively enhanced with applied small dc field.Otherwise,they cannot be selectively enhanced if the diffusive field is large than the applied electric field.
%K 晶体
%K 光栅
%K 大调制度
%K 光折变
%K 运动光栅
%K 微扰分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=478BD5F0F36565A63D23216386CA80B6&yid=8CAA3A429E3EA654&vid=F4B561950EE1D31A&iid=E158A972A605785F&sid=4720E9D07E8A2290&eid=10A39635766FF5D0&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=3