title: Measurement of gradient index profiles by Babinet fringe analysis.
abstract: A theory for determining one-dimensional ray deflections with the help of distorted Babinet fringes has been developed. An approach for investigating two-dimensional ray deflections has been presented. Applications of the techniques for the study of gradient index glass have been described.
authors.affiliation: Department of Physics, Lucknow University, Lucknow, IndiaIndian Institute of Astrophysics, Bangalore, India.
authors.forename: T P
authors.initials: TP
authors.lastname: Pandya
authors.forename: A K
authors.initials: AK
authors.lastname: Saxena