title: Paraxial imaging and transforming in a medium with gradient-index: transmittance function.
abstract: In this paper we study the paraxial imaging and transforming in a medium with gradient index obtaining the image and transform conditions. The medium is characterized by a transmittance function at the output plane similar to a thin lens. This medium can be an element of imaging and optical data processing systems.
authors.forename: C
authors.initials: C
authors.lastname: Gomez-Reino
authors.forename: E
authors.initials: E
authors.lastname: Larrea