Photorefractive Properties of the Isotropic Phase of Cyanobiphenyl Side-chain Liquid Crystalline Polymers
Photorefractive Properties of the Isotropic Phase of Cyanobiphenyl Side-chain Liquid Crystalline Polymers
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氰基联苯侧链液晶聚合物各向同性相的光折变性能
DOI：
10.1246/cl.2002.324
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
K. Tachibana
中科院分区：
文献类型：
--
作者：
T. Sasaki;T. Shimada;K. Tachibana
研究了含氰联苯发色团的侧链液晶聚合物的光折变特性。发现衍射效率与温度密切相关。结果表明，在书写光束被阻挡后，折射率光栅仍然存在。连接介介体和聚合物主链的烷基间隔链的长度对光栅的持久性有很大影响。
The photorefractive properties of side-chain liquid crystalline polymers possessing cyanobiphenyl chromophores were investigated. The diffraction efficiencies were found to be strongly dependent on temperature. It was found that the refractive index grating persisted after the writing beams were blocked. The persistence of the grating was strongly affected by the length of the alkyl spacer chain that connects the mesogen with the polymer main chain.