Induced chirality in a polyisocyanate polymeric film and the change in polarization rotation under an external electric field

被引:20
作者
Han, SH [1 ]
Wu, JW
Kang, JW
Shin, YD
Lee, JS
Kim, JJ
机构
[1] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea
[2] Kwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea
关键词
D O I
10.1364/JOSAB.18.000298
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A polyisocyanate random copolymer that contains an asymmetric chiral carbon center and Disperse Red 1 dye nonlinear optical chromophores is synthesized. The optical activity is measured in the visible and near-infrared spectral ranges, confirming the existence of induced optical chirality in the copolymer film. On application of a corona field to the slab waveguide copolymer film, the polarization rotation at the wavelength of 1.3 mum is changed, opening the possibility of chiral electro-optic modulation in a chiral polymeric waveguide thin film. (C) 2001 Optical Society of America.
引用
收藏
页码:298 / 301
页数:4
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