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Photonics – Chinese

Photonics – Chinese

Topics related to Lumerical and more, in Chinese language.
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  3. 仿真区域问题

仿真区域问题

    • May 19, 2023 at 2:52 am
      f jl
      Subscriber

      老师您好！我想问一下仿真区域z方向是PML边界，当将仿真区域z方向下界放到基底中和放到基底以外的反射率仿真结果为什么会不一样呢？

    • May 19, 2023 at 4:13 pm
      Guilin Sun
      Ansys Employee

      不一样是理所当然的，因为第一种情况所谓的基底是一个谐振腔，而后一个才是真正的基底，下表面不产生反射。如果想包含下表面对透射率做修正，一个简单的方法是仅用正入射情况做菲涅尔反射损失修正，即将透射率乘以1减菲涅尔反射。更精确的可以用菲涅尔系数按不同角度修正，不过一般没有必要。

    • May 20, 2023 at 1:19 am
      f jl
      Subscriber

      非常感谢老师的回答！那如果我想要在基底的两面都放置结构然后进行仿真最简单的办法就是做菲涅尔反射损失修正对吧？

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