I am working on the simulation of transmission holes. I followed the example sp_array and played with the parameters. I got a resonance peak. However the T value is about 3. Should it be smaller than 1? Since T is a normalized value? I uploaded the file below. Does anyone have any ideasample3.fsp (1.2 MB)
what’s wrong with my design? Any help would be appreciated. Thanks
Thank you for reaching out.
It looks like you are using a mesh override region with really coarse mesh of 50 nm. Also, the geometry of the mesh doesn’t seem very appropriate as it covers almost the entire simulation region. I guess you need to change the geometry to include only Au and use finer meshes such as 5 nm (as your gold layer is 50 nm). This should solve the weird results that you were seeing. The nanohole array example in KB will be a very good place to learn more about this sort of simulations.
Thanks for your help. I was learning from the example. I followed your suggestions and also changed the pml to steepangles. The problem was solved in this way. Thanks.