title: Refractive-index-profile determinations by using Lloyd's mirage.
abstract: A method is presented for the experimental determination of refractive-index profiles for planar media of monotonically decreasing refractive index, such as those used for optical waveguides. The technique is based on a generalization of the classical experiment of Lloyd's mirror, involving the interference pattern formed by a point source and its mirage, i.e., its reflection in such a graded planar medium.
authors.forename: B E
authors.initials: BE
authors.lastname: Allman
authors.forename: A G
authors.initials: AG
authors.lastname: Klein
authors.forename: K A
authors.initials: KA
authors.lastname: Nugent
authors.forename: G I
authors.initials: GI
authors.lastname: Opat