title: General expressions for the refractive indices of absorbing biaxial media as a function of the angle of incidence.
abstract: In this work we obtain general expressions for the complex refractive indices of refracted waves as a function of the angle of incidence in the case of an electromagnetic wave propagating in a transparent isotropic medium that reaches an interface with a biaxial absorbing medium. The biaxial absorbing medium is only required to have a diagonalizable complex dielectric tensor. Obtained expressions can be applied to any orientation of the principal axes and can be specialized for isotropic, uniaxial or biaxial, or transparent or absorbing media. By using these expressions we have also obtained the surface of indices and the surface of absorption coefficients for an example of a biaxial absorbing medium.
authors.forename: C
authors.initials: C
authors.lastname: Alberdi
authors.forename: J M
authors.initials: JM
authors.lastname: Diñeiro
authors.forename: B
authors.initials: B
authors.lastname: Hernández
authors.forename: C
authors.initials: C
authors.lastname: Sáenz