snompy.sample.drude_perm

sample.drude_perm(nu_vac, nu_plasma, gamma, eps_inf=1.0)

Return permittivity as a function of wavenumber using a Drude model.

This function returns

eps_inf - nu_plasma**2 / (nu_vac**2 + 1j * gamma_j * nu_vac).

Parameters:

nu_vacfloat

Vacuuum wavenumber of incident light.

nu_plasmafloat

Plasma wavenumber (wavenumber corresponding to the plasma frequency) of the sample.

gammafloat

Damping frequency of the sample (equivalent to the reciprocal of the relaxation time).

eps_inffloat, default 1.0

High frequency permitivitty of the sample.

Returns:

epscomplex

Permitivitty.