对偏振控制板匀滑随机位相板产生的干涉斑纹的特性进行了理论分析和数值模拟,用叠加在光强包络上的斑纹对比度来评价偏振控制板的匀滑作用,结果表明结构最简单的二单元偏振控制板对远场光斑具有最佳匀滑效果。

Characteristics of polarization control plate smoothing interference speckles produced by random phase plates are analyzed theoretically and simulated numerically. When the smoothing effect is valued by the speckle contrast over the intensity profile, the results show that the simplest two-element polarization control plate has the best smoothing effect for the far-field spot.