Hi,
I am new to COMSOL. I am designing a mirror inside air and then surrounded by PMLs. Before I added the PMLs , I added the PMC/PECS and Impedance boundary conditions at the mirror and I was thinking of using a SBC at the outer PML boundary for radiation to enter. However it seems now that all the boundaries but the ones that refer to outer PMLS are disabled.
What am I missing here?
Thanks!