Kimura K, Naito N, Shirai S, Yamauchi N
Opt Lett. 1992 Dec 1;17(23):1647-9. doi: 10.1364/ol.17.001647.
A design method is proposed for low-cross-talk twisted nematic liquid-crystal optical switches. In this method the transmission spectrum of a liquid-crystal cell is simulated by using parameters such as wavelength, refractive index of the liquid crystal, cell thickness, and spacer density. With this simulation, it becomes possible to define the parameters that give the lowest cross talk at a given wavelength. Liquid-crystal cells are fabricated by using the simulation results, and the transmission spectra are characterized. A very low cross talk of -32 dB is achieved for a wavelength of 633 nm.
提出了一种用于低串扰扭曲向列型液晶光开关的设计方法。在该方法中，利用波长、液晶折射率、盒厚和间隔物密度等参数对液晶盒的透射光谱进行模拟。通过这种模拟，可以确定在给定波长下产生最低串扰的参数。利用模拟结果制造液晶盒，并对其透射光谱进行表征。对于波长633nm，实现了-32dB的极低串扰。
