We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum › Forums › Discuss Simulation › Materials › Nonlinear optical material design › Reply To: Nonlinear optical material design

May 17, 2024 at 5:42 pm
Guilin Sun
Ansys Employee

Unfortunately right now FDTD cannot simulate non-3*3 diagonal tensor nonlinear material.

for frequency dependent nonlinear material, currently only  two

Chi3 Raman Kerr

Magnetic Electric Lorentz

can be dispersive.

For permittivity, you can simulate full 3*3 tensor with matrix tranformation: Creating anisotropic optical materials in FDTD and MODE

If you want to simulate broadband, you will need to make sure that the unitary matrix does not depend on frequency.

Â