Yamauchi Makoto
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
Appl Opt. 2005 Jul 20;44(21):4484-93. doi: 10.1364/ao.44.004484.
Twisted-nematic liquid-crystal devices having high spatial resolution are suitable for spatial light modulators. Phase-modulation characteristics of the devices have been widely studied, but the phase delay calculated using a conventional Jones-matrix model is slightly different from that measured using an interferometer. We propose a modified model whose matrix components are described by angular parameters that are related to the distribution of twist and tilt angles inside the liquid-crystal layer through differential equations. The model is used to simulate phase-modulation characteristics, and the result agrees well with the experimentally measured phase delay.
具有高空间分辨率的扭曲向列型液晶器件适用于空间光调制器。这些器件的相位调制特性已得到广泛研究，但使用传统琼斯矩阵模型计算出的相位延迟与使用干涉仪测量出的结果略有不同。我们提出了一种改进模型，其矩阵分量由角度参数描述，这些角度参数通过微分方程与液晶层内部的扭曲角和倾斜角分布相关。该模型用于模拟相位调制特性，结果与实验测量的相位延迟吻合良好。
