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Ansys Learning Forum › Forums › Discuss Simulation › Photonics – Chinese › 高斯光束焦点设置 › Reply To: 高斯光束焦点设置

May 16, 2024 at 5:56 pm
Guilin Sun
Ansys Employee

"并且位于z轴的-1000nm的位置。我想设置其焦点在z轴的0nm的位置"

缺省情况下，焦点位于光源的注射位置。如果焦点位置不在光源注射面你就要设置“distance from focus" 。 就你说的情况，这个数值应该是-1微米。参见 

Ansys Insight: FDTD 初学者：高斯光源问题