Jiahui Huang
Subscriber

Hi Guilin,

Thank you very much for the reply. That makes sense to me. For L3 cavity and thanks to the example you mentioned, I'm able to plot the resonance:

But what I want to simulate is something show here where you can see localized modes marked by red and cyan horizontal lines:

It is from a thesis but the author only mentions he uses 2D FDM simulation. Do you have any comments on this? Thank you!