Ansys Learning Forum Forums Discuss Simulation Photonics Lumerical FDTD simulation for PCW Reply To: Lumerical FDTD simulation for PCW

Guilin Sun
Ansys Employee

FDTD directly solves the Maxwell's equations so its boundary conditions are the Dirichlet BC. What you can use is the PML which is used to truncate the simulation volume. Please refer to the two basic boundary conditions:

PML boundary conditions in FDTD and MODE

Periodic boundary conditions in FDTD and MODE