你是说用频域监视器，然后选主分量获得位相吧？
此时应该选用Profile监视器，因为Power监视器会位移小于半个网格尺寸的位置而减小插值带来的误差。假设你用网格精度2，对应最大材料折射率的十分之一波长的网格尺寸，即10个网格位相就变化一个周期，有位移显然导致位相计算误差。
如果你知道是哪个分量，最好将Profile监视器就仿真那个分量在Yee Cell的位置上，参见
We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
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