%0 Journal Article
%T Study on the mechanism of light amplification in iron-doped lithium niobate crystals<br>LiNbO3:Fe晶体二波耦合弱光放大的物理机理
%A Zhao Hong-E
%A Liu Si-Min
%A Guo Ru
%A Wang Da-Yun
%A Yu Xuan- Yi
%A Gao Yuan-Mei
%A Huang Chun-Fu
%A Xu Jing-Jun
%A <br>赵红娥
%A 刘思敏
%A 郭儒
%A 汪大云
%A 禹宣伊
%A 高垣梅
%A 黄春福
%A 许京军
%J 物理学报
%D 2003
%I 
%X The study on the light amplification mechanism of iron-doped lithium niobate crystals has been done systematically.The experimental results indicate that the l ight amplification depends on the c-axis direction of the crystal. We propose a new view for the light amplification mechanism of the two-wave mixing in iron-do ped lithium niobate crystals: The diffusion mechanism cannot be neglected, and t he light amplification mechanism in doped lithium niobate crystals is caused by both the diffusion and the transient energy transfer. The decrease of the amplif ied light intensity after the steady-state is due to the decreases of the trans ient energy transfer with time and the energy dissipation caused by the beam fan ning.
%K photorefractive
%K light amplification
%K doped lithium niobate<br>光折变效应，
%K 光放大，
%K 掺杂铌酸锂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1B9F08049C306371&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=708DD6B15D2464E8&sid=406243A5B7DF1DE5&eid=E501BCBE9C72CE21&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=9