Two-photon fluorescence measurements of reversible photodegradation in a dye-doped polymer

Abstract

We report on the dynamics of photodegradation and subsequent recovery of two-photon fluorescence in a dye-doped polymer. The energy dependence suggests that photo-degradation is a linear process while recovery is entropic. Such recovery could be useful to high-intensity devices such as two-photon absorbers, which can be used in many applications.

3 pages, 4 figures

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