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 › Photonics › The way to plot imaginary part of refractive index (k) as a function of Power › Reply To: The way to plot imaginary part of refractive index (k) as a function of Power

October 5, 2023 at 5:13 pm
Guilin Sun
Ansys Employee

Do you mean the material index with perturbation, or the effective index of the mode?

The conversion theory is here  https://optics.ansys.com/hc/en-us/articles/360034382494-Charge-distribution-to-change-in-refractive-index-theory

So if the charges are uniform, you can get the perturbated material complex refractive index:

If the np density is simulated from CHARGE, it is not uniform then you cannot import or get the refractive index perturbation.

However when the np density is applied to a waveguide, and you use FDE or FEEM you will be able to get the mode effective index, real and imaginary parts.

 

 

Â