I have the refractive index (real and imaginary) of gold and silver at different wavelength (or frequency) determined from refractiveindex.info. But for CST software, I need plasma frequency, infinite permittivity, and collision frequency of them. How can I find these parameters from real and imaginary part of permittivity or refractive index at different frequencies?
Thanks for your reply. Do you have any reference to explain more? or show more details and formula to determine the requested parameter from permittivity or refractive index?
We can import the refractive index of silver and gold from refractive.index.info to CST software if you extract desired data in format of ”CSV”, and in a macro tab in CST software you can import your data.
If you can not find the desired frequency range in refractive index info in different experimental data, to simulate RI for metal it should be used, Drude model Or Lorentz -Drude model.
hi
You can read it in the following link:
Generalized plasmon-pole model and plasmon band structures of crystals
Article Jul 1993
regards
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