EME仿真光栅

- January 12, 2023 at 3:00 pm
  
  1445644840
  Subscriber
  
  老师您好，我在使用EME仿真光栅部分，如下图所示：
  我遇到的问题是这部分的cell如何划分呢？越细越好？还是说网格要画在硅部分？还是说其他画法？其次就是mesh的精度又该如何设置呢？
  还有一个问题是EME能不能仿真浅刻蚀的硅波导？如果可以，那么z方向的网格和Mesh又该如何设置呢？
  麻烦老师解答下，谢谢！
- January 12, 2023 at 6:15 pm
  
  Guilin Sun
  Ansys Employee
  
  这种情况每个周期两个CELL，折射率截面发生变化就应该用一个CELL，但是不必要仿真所有周期，因为再后期传播时可以选周期个数。Bragg Grating full device simulation with EME
  这两个CELL可以放在一个Group里面，间距要设计好。
  EME需要能得到模式，只要能计算出模式就可以。
  至于网格尺寸，开始可以粗一些，以后再做收敛性测试：
  1. EME Convergence Testing - An Intuitive Approach
  2. Convergence testing process for EME simulations

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