Reply To: I want to mesaure the transmission for the given unit cell

[anna.wirth-singh]

A good rule of thumb to follow is that the PML boundaries should be at least lambda/2 away from any structures. Your wavelength of interest is around 400 microns so the transmission monitor 800 microns above the bar (and the PML boundary above that) should be fine. It may be beneficial to place the source a bit further away from the structures, but I do not think this would cause an issue.

Can you please share a screenshot of your simulation setup or the results that you are getting? Is the transmission monitor not returning any results, or is it just returning results that are unexpected? Any information you can provide will help with troubleshooting. 

Thanks,

Anna