Optical linear anisotropy in hemicyanine Langmuir-Blodgett multilayers

被引:4
作者
Han, K
Lu, XZ
Ma, SH
Liu, LY
Wang, WC
机构
[1] Lab. of Laser Physics and Optics, Fudan University
关键词
D O I
10.1088/0022-3727/29/8/001
中图分类号
O59 [应用物理学];
学科分类号
摘要
Polarized UV-visible absorption spectroscopy was used to investigate the in-plane orientation of the hemicyanine molecules in Y-type Langmuir-Blodgett multilayers. We demonstrated for the first time that the dipping-induced molecular alignment was enhanced with increasing the layer number due to the interlayer interactions. Polarized UV nanosecond pulses could be used to control the photo-induced reorientation of the hemicyanine molecules. The thermal-isotropic process was accompanied by dissociation of the H-aggregate in the hemicyanine LB multilayers.
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页码:2061 / 2065
页数:5
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