Inverse scattering of the permittivity and permeability profiles of a plane stratified medium

It is shown that the permittivity and permeability profiles of a lossless plane stratified medium can be uniquely determined from the reflection coefficient due to transverse electric plane waves at two angles of incidence and all the frequencies. The inverse scattering problem at oblique incidence is transformed to an equivalent inverse scattering problem at normal incidences. The latter is transformed to an inverse scattering problem for the one-dimensional Schrödinger equations, the solution of which is obtained by the Gel’fand–Levitan theory.