Reply To: 3D FDTD simulation with 1mW dipole and nonlinear chi2 material not stable

[Jordi Lopez Leyva]

Hi Amrita,

Let's ignore the issue I have with non-linear GaAs for now, because I think the problem comes from elswhere.

I've a related question to the problem regarding light confinement. I've run the simulation with linear GaAs - Palik (so no chi2/chi3). But I still seem to have the same issue in the movie that light is not confined for high intensity dipole. For amplitude ~ 1-10 light is confined, but when amplitude ~100 it's no longer confined in the movie.

I've checked with DFT E field monitor against x position, and the line plot looks exactly the same for both high and low intensity, where I just divide the high intensity plot by 100 to get the exact same result. This suggests to me the issue is with the movie (e.g. color scaling, something else?).

Could you please let me know what you think could be behind this issue with the movie?