Beam coupling in nanotube-doped nematic liquid-crystal films

被引：23
|
作者：
Lee, W [1 ]
Yeh, SL [1 ]
Chang, CC [1 ]
Lee, CC [1 ]
机构：
[1] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
来源：
OPTICS EXPRESS | 2001年 / 9卷 / 13期
关键词：
D O I：
10.1364/OE.9.000791
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Diffraction gratings written in films of nematic liquid crystals doped with multiwall carbon nanotubes were investigated by measurements of exponential beam-coupling coefficients. These phase gratings were induced by the interference modulation of two coherent optical beams, in conjunction with an externally applied dc field. Systematic and consistent results of the gain properties indicate that the observed coherent-beam amplification depends strongly on the pump-to-probe intensity ratio. (C) 2001 Optical Society of America.
引用
收藏
页码：791 / 795
页数：5
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