液晶电控调谐滤波器的研究

Voltage-tunable Liquid Crystal Filter

理论分析了液晶调谐滤波器的调谐原理,利用岛津UV-23101分光光度计,通过对BL-009型向列相液晶透射比的测试,分析了可见光波段液晶透射比随电场的变化情况,作出了入射光波长从400～800nm时液晶透射比随电压变化的关系曲线,并就氩离子激光器两条谱线488nm和514.5nm进行了提取.

The theory of voltage-tunable liquid crystal filter is elaborated,and the change of transmission of BL-009 nematic liquid crystal in visible light band is detailedly analyzed by testing the transmission of liquid crystal using Shimadzu UV-23101 spectrophotometer.Relation curve of transmission with voltage is gained in the wavelength range from 400 nm to 800 nm.The spectral lines at 488 nm wavelength and at 514.5 nm wavelength of argon ion laser are separated.