掺铜KNSBN光折变晶体的光致吸收特性  

THE PROPERTY OF LIGHT-INDUCED ABSORPTION IN A COPPER-DOPED KNSBN CRYSTAL

作　　者：胡居广[1] 林晓东[1] 刘毅[1] 阮双琛[2] 姚建铨[3] 

机构地区：[1]深圳大学师范学院物理教育系,深圳518060 [2]深圳大学工程技术学院,深圳518060 [3]天津大学激光光电子研究所,天津300072

出　　处：《光子学报》2002年第2期169-172,共4页Acta Photonica Sinica

基　　金：山东大学晶体材料国家重点实验室开放经费资助项目

摘　　要：掺铜 KNSBN(钾钠铌酸锶钡 )光折变晶体具有光致吸收 ( LIA)特性 .实验表明 ,泵浦光的光强越强 ,波长越短 ,L IA系数就越大 ,探测光为 e偏振态时的 L IA系数是 o光时的1 .2倍 .Copper-doped KNSBN photorefractive crystal has the property of light-induced absorption(LIA).It is demonstrated experimentally that the coefficient of LIA is larger with more intense pump beam and shorter wavelength .When the probe beam is in state of `e′polarization the coefficient of LIA is 1.2 time larger when the pump beam is in state of ′o′ polarization .The property can be applied to improve the homogeneity of the light field .

关 键 词：掺铜 KNSBN晶体 光致吸收 光强均匀性 钾钠铌酸锶钡晶体 光折变晶体 

分 类 号：O734[理学—晶体学]