I’m studing the Surface Plasmon Resonance in a thin metallic layer and I started with the example given in the database:
However, I would like to study it with gold at 1.55 um. The problem I encountered is that changing the wavelength to 1.55 um (and keeping the silver layer) the simulation does not converge. Instead, the autoshutoff level reaches 0.0001 (for example) and start to rise again.
I tried a smaller grid and still occurs. The problem must be the boundary conditions because I turned them into metallic and the simulation converged.
Why does a wavelength change affect this way and how can I solve it?