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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › 关于overlap的讨论 › Reply To: 关于overlap的讨论

June 29, 2023 at 7:23 pm
Guilin Sun
Ansys Employee

KB 推导在这里 https://optics.ansys.com/hc/en-us/articles/360034396834-Understanding-the-mode-overlap-calculation

“lumerical中overlap这个计算公式里的电场是这个模式的总电场，总磁场吗？”不是，都是单个模场。

提取三个分量后，可以用Angle计算每个分量的位相，如果需要的话，参见 

Ansys Insight: 几个简单实用的脚本Script命令：用于结果分析

负的没啥关系，取政即可，所以KB上加了绝对值。

你可以看看位相。另外看看有效折射率是不是为负。这个没有说明。