differt.em.refraction_coefficients

refraction_coefficients(n_r, cos_theta_i)

Compute the Fresnel refraction coefficients at an interface.

Parameters:

• n_r (Inexact[ArrayLike, '*#batch']) –

  The relative refractive index.

  This is the ratio of the refractive index of the second medium over the refractive index of the first medium.

• cos_theta_i (Float[ArrayLike, '*#batch']) – The (cosine of the) angle of incidence.

Return type:

tuple[Complex[Array, '*batch'], Complex[Array, '*batch']]

Returns:

The refraction coefficients for s and p polarizations.

See also

fresnel_coefficients

reflection_coefficients

refractive_index