title: High index gradient in glass by ion exchange.
abstract: A gradient index having 0.22 as maximum value has been obtained in a TiF(6) Schott glass by the ion exchange technique. Index profiles and ionic concentration are presented. The reasons for such a high gradient are analyzed.
authors.affiliation: Ecole Nationale Superieure d'Ingenieurs Electriciens de Grenoble, B.P. 46, 38402 Saint Martin d'Heres, France.
authors.forename: J L
authors.initials: JL
authors.lastname: Coutaz
authors.forename: P C
authors.initials: PC
authors.lastname: Jaussaud