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Ansys Learning Forum › Forums › Discuss Simulation › Photonics – Chinese › 光沿着z负方向传输后再沿正方向回到原来位置时电场不一样 › Reply To: 光沿着z负方向传输后再沿正方向回到原来位置时电场不一样

October 29, 2021 at 11:15 pm
Guilin Sun
Ansys Employee

为什么会一样呢？在第一次传播过程中就已经丢失了一些信息了，再用缺失的场作光源当然不能重现了。你看看重现光束中的波纹。仿真有很多误差源，参见　Convergence testing process for FDTD simulations