主客体掺杂薄膜的电晕和全光极化非线性光学特性研究  

Study on the Nonlinear Optical Properties of Host-guest Adulterant Thin-films for Corona Poling and All-optical Poling

作　　者：李云[1] 王文军[1] 刘云龙[1] 高学喜[1] 李慧[1] 

机构地区：[1]聊城大学物理科学与信息工程学院,山东聊城252059

出　　处：《聊城大学学报（自然科学版）》2008年第4期50-52,110,共4页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金(10874063);山东省自然科学基金(Y2007A34);山东省教育厅科技发展计划(J07YI05)资助课题

摘　　要：把偶氮化合物对硝基双甲胺基偶氮苯作为客体掺杂到主体PMMA中利用旋涂法制备成薄膜,然后对薄膜进行电晕极化和全光极化,利用二次谐波产生法研究薄膜的非线性光学特性.实验结果表明:电晕极化后在测量的10 min内薄膜的二次谐波信号几乎没发生驰豫,但全光极化后的薄膜其二次谐波信号衰减近一半.这主要是由于电晕极化和全光极化的作用机制不同所导致.The host-guest adulterate films,that the host was PMMA and guest was 4＇-Nitro-4- dimethylaminoazobenzene,were prepared. The nonlinear optical properties of the films were investigated by using second harmonie generation technology after corona poling and All-optical poling. The experimental results were shown that the second harmonic signal is almost no relaxation in 10 minutes after eorona poling, but it decreases nearly half for All-optical poling. This was mainly due to the different mechanism between corona poling and all-optical poling.

关 键 词：主客体掺杂 薄膜 驰豫 电晕极化 全光极化 

分 类 号：O484.4[理学—固体物理]