%0 Journal Article
%T Dark decay behaviours of photorefractive grating induced by two deep-trap levels in Ce:BaTiO3
Ce:BaTiO3晶体中两个深陷阱能级引起的光折变光栅暗衰减特性
%A Zhang Ming
%A Xu Ying
%A Hong Zhi
%A
张明
%A 徐英
%A 洪治
%J 中国物理 B
%D 2005
%I
%X Dark decay behaviors of photorefractive grating in Ce:BaTiO3 crystal are studied experimentally. It is observed that two deep-trap levels, i.e. Fe-ion deep level and Ce-ion deep level, both participate in the photorefractive process. A simplified two-deep model is presented based on the one-deep trap model and the shallow-deep trap model, with which we analyze quantitatively the contribution of each deep level to the whole space-electric field and thus the photorefractive grating varying with the different grating wave vectors and different writing intensities.
%K dark decay
%K photorefractive grating
%K Ce:BaTiO3
%K simplified two-deep model
暗衰减
%K 光折变光栅
%K Ce:BaTiO3
%K 简化的双深能级模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=C66A7875FF80C5DF6FE718A73D0E4BB1&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=94C357A881DFC066&sid=342E193BAB6B28C5&eid=EAA944F99AA73B33&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=12