文献类型：期刊文献

中文题名：半花菁衍生物LB膜的非线性光学性能研究

英文题名：Studies of nonlinear optical properties of hemicyanine dye derivatives in Langmuir-Blodgett films

作者：马世红[1];刘丽英[1];陆兴泽[1];王文澄[1];张兆奎[1];钟菊花[1]

机构：[1]复旦大学物理系,华东化工学院物理系

年份：1994

卷号：14

期号：1

起止页码：14

中文期刊名：光学学报

外文期刊名：Acta Optica Sinica

收录：CSTPCD;;EI(收录号：1994061276257);Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：半花菁染料;LB膜;非线性光学

外文关键词：optical second- harmonic generation, Langmuir- Blodgett film,hemicyanine dye.

摘要：本文利用二次谐波产生、紫外－可见吸收光谱、Ａ曲线等方法，探讨了四种分子结构相近的半花菁染料衍生物ＬＢ膜的非线性光学性能．研究了它们的分子结构与β值大小的关系，分析了引起β值变化的主要原因，证实了极性基团的强弱顺序．并讨论了ＬＢ膜中聚集效应程度不同的原因．通过光学二次谐波信号强度与膜层数的关系，对比了样品的成膜性能．
he nonlinear optical properties of Langmuir-Blodgett films of four hemicyanine dyederivatives, which are similar in molecular structure, have been studied by optical secondharmonic generation (SHG)、 UV-Vis absorption spectrum and isotherms. The relation ofthe β to the molecular structure was investigated and the main reason resulting in the βdifferences was discussed as well. The sequence of polar chemical groups was proved. Thedifference of the degree of aggregation in LB films was analyzed. The quality of LB filmswas compered through the relation of optical SH signal intensity to the layer number ofdye multilayers.