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Ansys Learning Forum Forums Discuss Simulation Photonics 基于二维Ronchi光栅的剪切干涉仿真 Reply To: 基于二维Ronchi光栅的剪切干涉仿真

pengrenjuddd
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关于这个问题我想再补充一点细节。我看到前面有帖子提到球面波可通过选择高斯光源然后设置为“use thin lens”实现。关于“distance from focus”的含义我想再咨询一下。
d=0表示会聚球面波且球心位于z=0平面;

d>0表示发散球面波且球心位于z=-d平面(z=0平面下方);

d<0表示会聚球面波且球心位于z=-d平面(z=0平面上方);

不知上述理解是否正确