半花菁LB多层膜的光学非线性各向异性研究

doi:10.3866/PKU.WHXB19960703

Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (07): 589-593.doi: 10.3866/PKU.WHXB19960703

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Studies on Optical Nonlinear Anisotropy in Hemicyanine LB Multilayers

Han Kui,Xu Yong-Sheng,Ma Shi-Hong,Wang Guo-Yi,Luo Long-Gen,Lu Xing-Ze

Department of Physics,Fudan University,Shanghai 200433

Received:1995-11-28 Revised:1996-01-22 Published:1996-07-15
Contact: Lu Xing-Ze

Abstract

Abstract:

Polarized UV-Visible absorption and rotation-angle second harmonic generation (SHG) techniques were used to investigate the in-plane symmetry in Y-type Langmuir-Blodgett(LB) multilayers of a hemicyanine dye interleaved with inert material arachidic acid. Dipping-induced anisotropy of the molecular orientation with a unique reflection symmetry was enhanced with increasing the dipping speed.

Key words: Langmuir-Blodgett multilayer, Second harmonic generation, Anisotropy, Hemicyanine

Han Kui,Xu Yong-Sheng,Ma Shi-Hong,Wang Guo-Yi,Luo Long-Gen,Lu Xing-Ze. Studies on Optical Nonlinear Anisotropy in Hemicyanine LB Multilayers[J].Acta Phys. -Chim. Sin., 1996, 12(07): 589-593.

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Studies on Optical Nonlinear Anisotropy in Hemicyanine LB Multilayers

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