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沧海遗珠635

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[求助] 偏振态调制

通过经典的4f系统可以实现偏振态的调制,如果实验中用HOLOEYE LC 2002型号的空间光调制器,在空间光调制器上加载二维全息光栅,它的透射函数为t(x,y)=0.5+r(cos(2Πfx+s1(x,y))+cos(2Πfy+s2(x,y)))/4,其中s1、s2是全息光栅水平方向、竖直方向的相位分布,f是空间频率,r是空间光调制器的调制深度。在SLM上,具体是如何调制s1和s2呢???另外如何调制这个SLM上加载的全息光栅的频率呢???偏振态的调制还有没有其他方法来实现呢???求助有关资料,拜托、拜托。
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