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“推-拉”型偶氮分子LB膜的二次谐波产生
Second-Harmonic Genaration Properties of Push-Pull Azobenzene in Langmuir-Blodgett Films
【Author】 GAO Xue-xi WANG Wen-jun LIU Yun-long LI Shu-hong (School of Physical Science and Information Technology,Liaocheng University,Liaocheng,Shandong 252059,China)
【机构】 聊城大学物理科学与信息工程学院;
【摘要】 采用二次谐波产生的方法研究了一种新型偶氮化合物分子的 Langmuir-Blodgett(LB)膜及非线性光学特性。该化合物在水表面可以形成稳定的单分子膜并且可以较好地转移到固体基板上形成 LB 多层膜。LB 膜具有非常大的二次谐波信号强度,其分子超级化率β约为1.17×1026esu。
【Abstract】 The Langmuir-Blodgett (LB) film and the second-order nonlinear optical properties of a new azo compound were investigated by using means of second harmonic generation (SHG).Stable monolayer of 4-(carboxylic)-4-(amidogen)-azobenzene molecular formed on water surface could be transferred to solid substrate and built LB multilayers.The SHG signal intensity was very strong.The hyperpolarizability of the molecule was about 1.17×10-26 esu.
【Key words】 thin films; Langmuir-Blodgett(LB)film; second harmonic generation(SHG); azobenzene compound;
- 【会议录名称】 第十七届全国激光学术会议论文集
- 【会议名称】第十七届全国激光学术会议
- 【会议时间】2005-10
- 【会议地点】中国四川绵阳
- 【分类号】O437
- 【主办单位】中国光学学会、中国电子学会