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聚合物分散液晶材料具有电控开关特性 ,利用材料的这一特性制成聚合物分散液晶光栅则具有衍射特性的电场可调性。理论和实验表明 ,采用一定的材料配方和工艺 ,可以获得理想的聚合物分散液晶全息光栅 ,若干个不同频率的光栅叠加可以制成实现多点光切换的光开关
Polymer dispersed liquid crystal material has the characteristics of electronic control switch, the use of this property made of polymer dispersed liquid crystal grating diffraction characteristics of the electric field is adjustable. Theoretical and experimental results show that the ideal polymer dispersed liquid crystal holographic gratings can be obtained by adopting certain material formulas and processes, and the grating with different frequencies can be superposed to form an optical switch for multi-point optical switching