在液晶指向矢计算的基础上,得到了扭曲排列(TN盒)的E7在简并四波混频(DF-WM)试验中的衍射效率公式.计算了衍射效率与盒厚,激光波长,泵浦光强比和泵浦光夹角的关系.在试验中,验证了泵浦光强比接近1:1,泵浦光夹角接近9.的试验条件对提高DF-WM的衍射效率有利.此结果对液晶I)FWM的应用有一定指导意义.
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