A gradient index having 0.22 as maximum value has been obtained in a TiF6 Schott glass by the ion exchange technique. Index profiles and ionic concentration are presented. The reasons for such a high gradient are analyzed.
© 1982 Optical Society of America
J. L. Coutaz and P. C. Jaussaud, "High index gradient in glass by ion exchange," Appl. Opt. 21, 1063-1065 (1982)