%0 Journal Article
%T SPATIAL SOLITONS IN PHOTOVOLTAIC PHOTOREFRACTIVE CRYSTALS IN AN EXTERNAL BIAS FIELD<br>有偏压的光伏光折变晶体中的空间孤子
%A LU KE-QING
%A TANG TIAN-TONG
%A <br>卢克清
%A 唐天同
%J 物理学报
%D 1999
%I 
%X Bright and dark spatial solitons are predicted for biased photovoltaic photorefractive crystals, which are due to both the spatially nonuniform screening of the external electric field and the photovoltaic effect. These solitons differ form previously observed photorefractive spatial solitons in their properties. When external electric field is of a certain value, these solitons may be switched from bright to dark both by changing the polarity of the external electric field and by rotating the polarization of the light. In case the effect of the external bias field is much stronger than the photovoltaic effect and the latter can be neglected, these solitons are similar to screening solitons. In case the external bias field is absent, these solitons are similar to photovoltaic solitons in the open-circuit case.
%K 光伏孤子
%K 空间孤子
%K 光折变晶体
%K 偏压
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=DE2D95649EB5AFA286603B6E84486634&yid=B914830F5B1D1078&vid=B6DA1AC076E37400&iid=708DD6B15D2464E8&sid=5B42CCE3E72FE054&eid=0EBD8BDCA4871699&journal_id=1000-3290&journal_name=物理学报&referenced_num=4&reference_num=2