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本文研究部分相干光照明下有旋转夹角的双光栅衍射干涉效应,它是Lau-Talbot-Moire效应的推广。运用模糊函数方法给出系统观察面上一个更为普遍的光强分布数学表达式,并分析讨论一些特殊情况及相应的实验结果。In this paper, the diffraction and interference effect of double gratings with a rotation-angle under partially coherent illumination is studied, it is a generalization of Lau- Talbo-Moire effect. A general analytic expression of light intensity distribution at the observation plane is obtained by means of ambiguity function method. Some special cases are discussed and verified by experiments.
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