Ogiwara Akifumi, Kakiuchida Hiroshi, Yoshimura Kazuki, Tazawa Masato, Emoto Akira, Ono Hiroshi
Department of Electronic Engineering, Kobe City College of Technology, 8-3 Gakuen-higashi, Nishiku, Kobe 651-2194, Japan.
Appl Opt. 2010 Aug 20;49(24):4633-40. doi: 10.1364/AO.49.004633.
A microperiodic structure composed of polymer and liquid crystal (LC) phases, called holographic polymer dispersed LC, is fabricated by a photo-induced phase separation technique using LC composites with different physical properties, such as refractive indices and clearing points. Effects of thermal modulation on diffraction properties of LC composite gratings are experimentally investigated in the viewpoints of polarization and temperature dependences. The diffractions based on the change of refractive index induced by the nematic-isotropic transition of LCs with the increase of temperature are applied for a holographic image reconstruction.
一种由聚合物和液晶（LC）相组成的微周期结构，称为全息聚合物分散液晶，是通过光诱导相分离技术，使用具有不同物理性质（如折射率和清亮点）的液晶复合材料制造而成。从偏振和温度依赖性的角度，通过实验研究了热调制对液晶复合光栅衍射特性的影响。基于随着温度升高液晶向列相 - 各向同性转变引起的折射率变化的衍射被应用于全息图像重建。
