title: Tracing rays through graded-index media: a new method.
abstract: A new method for tracing rays through graded-index media is presented. The method essentially consists of transforming the ray equation into a convenient form and solving the resulting equation using a standard numerical technique. A detailed comparison of this method with existing methods has also been made, and it is shown that for obtaining a desired accuracy this method requires much less computational effort.
authors.affiliation: Indian Institute of Technology, Delhi, Physics Department, New Delhi, 110 016, India.
authors.forename: A
authors.initials: A
authors.lastname: Sharma
authors.forename: D V
authors.initials: DV
authors.lastname: Kumar
authors.forename: A K
authors.initials: AK
authors.lastname: Ghatak