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新型隔层材料LB交替多层膜的二次谐波研究
引用本文:马世红,韩奎,陆兴泽,王恭明,郑家骠,王文澄,姚钟麒. 新型隔层材料LB交替多层膜的二次谐波研究[J]. 物理化学学报, 1995, 11(7): 650-653. DOI: 10.3866/PKU.WHXB19950717
作者姓名:马世红  韩奎  陆兴泽  王恭明  郑家骠  王文澄  姚钟麒
作者单位:State Key Joint Laboratory for Material Modification by Laser,Ion and Electron Beams(Fudan Branch),Laboratory of Laser Physics Optics,Fudan University,Shanghai 200433,Lanzhou Institute of Chemistry and Physics,Academia Sinica,Lanzhou 730000
基金项目:863高技术及国家自然科学基金
摘    要:有机光学非线性材料在光计算和光通讯领域中有着非常广泛的应用前景[1,2].非中心对称结构是二阶非线性光学器件的基本要求之一,对于有机两亲光学活性分子而言,使用能够在分子尺度上实现有序组装的Langmuir-Blodgett(LB)技术,可以制备具有稳定而非中心对称结构的多层膜.一般说来,Y型结构的多层膜比X型或Z型更稳定.然而,由单一材料组成的Y型LB多层膜只能形成中心对称结构,因而对宏观二阶非线性极化率X(2)没有贡献.为了解决稳定性与非中心对称性的矛盾,我们可以将光学非线性活性材料(如半花菁染料)与非活性隔层材料…

关 键 词:二次谐波产生  Langmuir-Blodgett多层膜  冠醚  半花菁  
收稿时间:1994-05-28
修稿时间:1994-09-12

Second Harmonic Generation from Langmuir-Blodgett Multilayers of Hemicyanine Derivative Interleaved with a Novel Spacer
Ma Shihong,Han Kui,Lu Xingze,Wang Gongming,Zheng Jiabiao,Wang Wencheng. Second Harmonic Generation from Langmuir-Blodgett Multilayers of Hemicyanine Derivative Interleaved with a Novel Spacer[J]. Acta Physico-Chimica Sinica, 1995, 11(7): 650-653. DOI: 10.3866/PKU.WHXB19950717
Authors:Ma Shihong  Han Kui  Lu Xingze  Wang Gongming  Zheng Jiabiao  Wang Wencheng
Affiliation:State Key Joint Laboratory for Material Modification by Laser,Ion and Electron Beams(Fudan Branch),Laboratory of Laser Physics Optics,Fudan University,Shanghai 200433|Lanzhou Institute of Chemistry and Physics,Academia Sinica,Lanzhou 730000
Abstract:A new type of bifat-chain amphiphilic moecules 1,10-bistearyl-4,6,13,15-tetraene-18-nitrogencrown-6 (NC), was synthesized and adopted as an spacer for an optically nonlinear hemicyanine derivative(DAEP) dye to form interleaved Y-type LB multilayer films. The second harmonic (SH) intensity increased quadratically with the bilayer number due to improvement of the structural properties by insertion of the long hydrophibic chain of the DAEP between two fat-chains of NC.
Keywords:Second harmonic generation   Langmuir-Blodgett multilayer films   Crown  Hemicyanine
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