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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Flexible Material Plugin Framework › Reply To: Flexible Material Plugin Framework

May 28, 2024 at 5:06 pm
Amrita Pati
Ansys Employee

Hi Ahmed,

These inputs are provided by Lumerical. I'm not sure if we share the details of these quantities, this might be proprietary information. As far as I can tell, if you have a non-dispersive dielectric (constant permittivity) then:

  • Un = epsilon_r (the relative epsilon of the base material, which is 1 if the base material index is 1)
  • Vn = Dn/eps0 = epsilon_r En

These terms get more complicated when the base material is dispersive and the multi-coefficient material model is used. 

Regards,
Amrita

 
These terms get more complicated when the base material is dispersive and the multi-coefficient material model is used. However, for the purposes of developing your model, you can consider the case where the base material is a simple dielectric.