probe.fresnel - Pure python Fresnel reflectivity calculator

Fresnel	Function for computing the Fresnel reflectivity for a single interface.
test

Pure python Fresnel reflectivity calculator.

class refl1d.probe.fresnel.Fresnel(rho=0, irho=0, sigma=0, Vrho=0, Virho=0)

Bases: object

Function for computing the Fresnel reflectivity for a single interface.

Parameters:

rho, irho = 0float | 1e6 * inv Angstrom^2

real and imaginary scattering length density of backing medium

Vrho, Virho = 0float | 1e6 * inv Angstrom^2

real and imaginary scattering length density of incident medium

sigma = 0float | Angstrom

interfacial roughness

Returns:

fresnelFresnel

callable object for computing Fresnel reflectivity at Q

Note that we do not correct for attenuation of the beam through the incident medium since we do not know the path length.

reflectivity(Q)

Compute the Fresnel reflectivity at the given Q/wavelength.

refl1d.probe.fresnel.test()