Abstract

Many studies have been devoted to the origin of photosensitivity since its discovery in the 70's [1]. The time dependence of the UV-excited blue photoluminescence (PL) has been related to photosensitivity, but up to now the only correlation reported [2] is the relation between the decrease of the blue PL and the refractive index change. In this paper we intend to show a direct correlation between the increase of the blue PL and the refractive index change.

© 1995 Optical Society of America