Liquid-crystalline Polymer Holograms for High-density Optical Storage andPhotomechanical Analysis
Liquid-crystalline Polymer Holograms for High-density Optical Storage andPhotomechanical Analysis
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用于高密度光存储和光机械分析的液晶聚合物全息图
DOI：
10.1117/12.930300
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Shishido and N. Akamatsu
中科院分区：
文献类型：
--
作者：
N. Asakura;H. Hoshida;H. Yamada;糖タンパク質合成のためのアマドリ転位反応高効率化戦略;A. Shishido and N. Akamatsu
我们报道了一种可用于高密度光存储和光刻分析的线性和交联偶氮苯液晶聚合物。我们介绍了由光响应、折射率变化放大和透明单元组成的多组分系统的分子设计概念。利用液晶的光学各向异性和协同运动特性，记录偏振全息图，实现了高密度全息存储。另一方面，制备了交联液晶偶氮苯聚合物薄膜，研究了其光力学行为。我们发现，几个mol%-顺式的生成引起了杨氏模量的大变化。此外，在侧链上有偶氮苯的交联液晶聚合物薄膜中观察到一种独特的弯曲行为，这是传统弯曲机制无法解释的。
We report linear and crosslinked azobenzene containing liquid-crystalline polymers which can be applied to high-density optical storage and photomechanical analysis. We introduced a molecular design concept of multicomponent systems composed of photoresponse, refactive-index change amplification, and transparency units. Taking advantage of characteristics of liquid crystals (optical anisotropy and cooperative motion), polarization holograms were recorded, which enabled us higher-density holographic storage. On the other hand, crosslinked liquid-crystalline azobenzene polymer films were fabricated to investigate the photomechanical behavior. We have found that a large change in Young’s modulus is induced by several mol%-cis form production. Furthermore, a unique bending behavior, which cannot be explained by the conventional bending mechanism, was observed in the crosslinked liquid-crystalline polymer films with azobenzene in the side chain.