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监视器和光源位置

- August 29, 2024 at 1:14 pm
  
  2022100400
  Subscriber
  
  监视器距离结构最小是半个波长，pml与监视器距离最小为半个波长，是这样的吗？光源与结构的距离以及光源与pml的最小距离也都是要保证半个波长吗
- August 29, 2024 at 8:39 pm
  
  Guilin Sun
  Ansys Employee
  
  监视器距离没有要求。结构距离pml建议为半个波长是为了让PML位于均匀网格区，请能有效吸收电磁波。
  光源距离PML也没有要求，最好接近结构为宜。
- September 1, 2024 at 2:11 am
  
  2022100400
  Subscriber
  
  但是光源我改变了位置，如下图，光源就改变了78nm，透过率就有很大的变化了
- September 1, 2024 at 2:19 am
  
  2022100400
  Subscriber
  
  然后pml距离光源的位置不同透过率差距也挺大，如下图，第一个图的光源距离pml是0.5um，第二个是1.1um，透过率差别挺大，那这个距离具体应该是怎么设置呢

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