Reply To: Lumopt: Unable to calculate gradient after changing dielectric constant

[fachienchong]

Hi Anna,
Thank you for your reply.
I am currently working on topology optimization.
I added mesh to my design area and fom area, with a step size of one tenth of the center wavelength. In fact, this is indeed useful, although it greatly increases my simulation time.
According to the current settings, the refractive index comparison can be increased to 1/3.40, although there is still a distance from the actual refractive index, it can also be used as an approximate solution. My goal is to have a refractive index of 1/3.48
If I want to obtain a more accurate solution, should I increase the mesh or how to adjust the settings.
Additionally, I have noticed that making the above adjustments may result in the broadband simulation not being effective.
Look forward to your reply.
best
fachien