Structure of Twisted States in Ferroelectric Liquid Crystals Studied by Microspectrophotometry and Numerical Calculations
Structure of Twisted States in Ferroelectric Liquid Crystals Studied by Microspectrophotometry and Numerical Calculations
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显微分光光度法和数值计算研究铁电液晶扭曲态结构
DOI：
10.1143/jjap.27.8
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发表时间：
1988
影响因子：
1.5
通讯作者：
A. Fukuda
中科院分区：
文献类型：
--
作者：
N. Hiji;Y. Ouchi;H. Takezoe;A. Fukuda
在偏光显微镜下测量了表面稳定铁电液晶电池扭曲态的透射光谱。发现两种扭曲态给出了不同的光谱，正如预期的那样，有明显的色差。有两种情况；在一种情况下，两个光谱通过旋转细胞交换，而在另一种情况下，两个光谱不交换。我们可以用近晶层弯曲模型对光谱进行数值计算来模拟这两种情况。光谱交换可以用琼斯延迟矩阵法解析解释。提出了一种判断立交状态的简便方法。
The transmittance spectra of twisted states of surface stabilized ferroelectric liquid crystal cells were measured under a polarizing optical microscope. It was found that the two twisted states give different spectra, as expected by an apparent color difference. There were two cases; in one case the two spectra interchange by rotating a cell, while in the other case the two spectra do not interchange. We could simulate both cases by numerical calculations of the spectra using a smectic layer bend model. The spectral interchange could be analytically explained on the basis of the Jones retardation matrix method. A simple method for judging the condition of the interchange is proposed.