Photorefractive Bragg diffraction in high- and low-molar-mass liquid crystal mixtures

被引:62
作者
Ono, H
Saito, I
Kawatsuki, N
机构
[1] Nagaoka Univ Technol, Dept Elect Engn, Nagaoka, Niigata 94021, Japan
[2] Himeji Inst Technol, Dept Appl Chem, Himeji, Hyogo 67122, Japan
关键词
D O I
10.1063/1.121230
中图分类号
O59 [应用物理学];
学科分类号
摘要
Orientational photorefractive Bragg diffraction is observed in high- and low-molar-mass liquid crystal mixtures doped with fullerene (C-60). These novel materials are in a nematic phase without phase separating. In the functionalized materials, we observe a high two-beam coupling gain coefficient (Gamma = 75 cm(-1)) with a low applied field of 4 V/mu m, low total losses (32 cm(-1) including scattering, reflection, and absorption), a high diffraction efficiency (9%), and response time of 200 ms. (C) 1998 American Institute of Physics.
引用
收藏
页码:1942 / 1944
页数:3
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