Liquid crystal molecular orientation properties of microrubbing cells and its application to electrically tunable grating
Liquid crystal molecular orientation properties of microrubbing cells and its application to electrically tunable grating
复制标题
微摩擦单元液晶分子取向特性及其在电可调光栅中的应用
DOI：
10.1117/12.893484
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
and Toshiaki Nose
中科院分区：
文献类型：
--
作者：
Michinori Honma;Wataru Toyoshima;and Toshiaki Nose
液晶光栅由扭曲的液晶取向畴构成。液晶盒的液晶分子取向行为表现出双稳性，可分为±90°和±180°两种扭转取向状态。前者可以通过向列相-各向同性相转变（加热和冷却LC单元）产生。后者通过适当的电压施加而不断地获得。在此基础上，提出了两种取向状态之间的切换方案。此外，还讨论了液晶盒作为光栅的衍射特性和作为液晶光栅的可能性。
Liquid crystal (LC) gratings consisting of twisted nematic orientation domains have been demonstrated. The LC cells exhibited bistability in its LC molecular orientation behavior, which can be divided into two types of twist orientations; that is, ±90° or ±180° twist orientation states. The former can be produced by the nematic-isotropic phase transition (heating and cooling the LC cell). The latter is constantly obtained by a suitable voltage application. Based on this experimental result, switching scheme between these two orientation states were proposed. Furthermore, diffraction properties of the LC cell as a grating and the possibility as LC bistable grating were discussed.