September 15, 2022 at 12:57 pm
September 15, 2022 at 4:17 pmGuilin SunAnsys Employee
你的仿真结果已经很精确了！ 要知道现在是离散计算，理论上讲大NA的艾里斑延申很大的距离（衍射更严重），你要确保仿真区不截断它才好。由于角度大， PML要求也会严，你可能需要用细网格，PML远离并且有更多层可能有改善，PML厚度至少半个波长，甚至一个波长，因为此时光的角度比较大。另外也可能需要更多的平面波来合成，具体多少合适很难说。
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