May 30, 2023 at 7:40 pm
Guilin Sun
Ansys Employee

You can set anisotropic material directly if it is not dispersive:

if it is dispersive you can import the data: sample 3D data: https://optics.ansys.com/hc/en-us/articles/360034915093-Creating-new-sampled-data-materials-in-FDTD