| 液晶电控双折射率与电压关系的研究 |
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| 引用本文： | 王伟,李国华,薛冬.液晶电控双折射率与电压关系的研究[J].光学学报,2004,24(7):70-972. |
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| 作者姓名： | 王伟 李国华 薛冬 |
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| 作者单位： | 1. 曲阜师范大学激光研究所,曲阜,273165;中国科学院上海光学精密机械研究所,上海,201800
2. 曲阜师范大学激光研究所,曲阜,273165 |
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| 摘 要： | 对向列相液晶BL-009作了电控双折射特性的研究。实验上采用简单、精确的偏光干涉法，利用岛津UV-3101PC型分光光度计，在入射光波长为630nm时，测出了液晶的透射率随交流电压的有效值和频率的变化曲线，从而得到液晶电控双折射率随电压的有效值和频率变化曲线。分析实验数据，可知液晶的电控双折射率随电压有效值的升高成一阶指数下降，而且，随电压频率的升高，在一定的范围内基本成线性下降。此实验结果对液晶器件的设计、制作、使用都具有一定的参考价值。
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| 关 键 词： | 液晶 电控双折射 电压 频率 |
| 收稿时间： | 2003/7/9 |
A Study of Voltage-Dependent Electric-Control Birefringence of Liquid Crystal |
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| Wang Wei , Li Guohua Xue Dong , Laser Institute,Qufu Normal University,Qufu.A Study of Voltage-Dependent Electric-Control Birefringence of Liquid Crystal[J].Acta Optica Sinica,2004,24(7):70-972. |
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| Authors: | Wang Wei Li Guohua Xue Dong Laser Institute Qufu Normal University Qufu |
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| Institution: | Wang Wei 1,2 Li Guohua 1 Xue Dong 1,2 1 Laser Institute,Qufu Normal University,Qufu 273165 2 Shanghai Institute of Opticsand Fine Mechanics,The Chinese Academy of Sciences,Shanghai 201800 |
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| Abstract: | The peculiarity of nematic liquid crystal (LC\:BL 009) electric control birefringence is studied. The simple and precise polarized light interference method is employed to measure the birefringence of liquid crystal. When wavelength of the incident light is 630 nm, transmissivity curve of LC is measured as the functions of the effective value and frequency of AC voltage by using Shimadzu UV 3101 PC spectrometer. After analysing the experimental result, electric control birefringence of LC was obtained. The electriccontrol birefringence of LC is single order exponential falling with the increase of effective value of voltage and linear falling with the increase of frequency of voltage in definitive domain. The obtained result is usefull for the design and manufacturing, application of LC device. |
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| Keywords: | liquid crystal electric-control birefringence voltage frequency |
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