What I try to do is quite simple. I’m trying to simulate a dielectric (n=4) cylinder/wire on n=1.3 background in 2D. While the simulation converge nicely for a plane wave polarized parallel to the simulation’s plane, for perpendicular polarization the “auto-shutoff level” fluctuates and won’t reach the shutoff criteria.
May I even use 2D simulation in this case? I’ve attached the simulation file.
Wire2D_r=150nm_n=4.fsp (248.5 KB)