对不同组份掺镁铌酸锂晶体紫外光致吸收的研究  

Study on the Ultraviolet-induced Absorption Coefficeint Change in Mg-doped Lithium Niobate Crystals

作　　者：李质勇[1] 徐庆君[1] 

机构地区：[1]枣庄学院物理与电子工程系,山东枣庄277160

出　　处：《枣庄学院学报》2007年第2期5-7,共3页Journal of Zaozhuang University

摘　　要：研究了不同组份掺镁铌酸锂晶体的光致吸收现象.通过对不同组份掺镁铌酸锂晶体紫外光致吸收的动态暗衰减过程的测量,我们认为掺镁铌酸锂晶体中紫外光致吸收的浅能级缺陷中心是O-小极化子.We studied the ultraviolet -light -induced absorption （UV -LIA） coefficient changc in the congruent LiNbO3 crystals doped with Mg^2 ＋ of different concentrations. By measuring the ultraviolet - light - induced absorption coefficeint change, We believed that the ultraviolet - light induced absorption changes were ascribed to the generation of the small pelarons Ounder the illumination of UV lights.

关 键 词：LINBO3 Mg 光致吸收 非线性光学 

分 类 号：O731[理学—晶体学]