Learning Forum

[Ahmed Salama]

Hi, 

I am using plugin material in lumerical. I was struggling to understand this equation because I do not know what are the U and V parameters in the equation 

Thanks in advance!

[Amrita Pati]

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.