Reply To: Minimize reflection to almost 0%

[Guilin Sun]

For thin film or slab type devices, you can use stackrt to get the theoretical results.

stackrt - Script command

For FDTD simulation, make sure the dispersive material is fit correctly without large RMS errors, and you can use finer mesh for the slab cavity. The result is quite smooth so the simulation time and autoshutoff min are reasonable. Also make sure PML is thick enough to absorb the em waves.