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

  title={Two-photon fluorescence measurements of reversible photodegradation in a dye-doped polymer.},
  author={Ye Zhu and Juefei Zhou and Mark G. Kuzyk},
  journal={Optics letters},
  volume={32 8},
We report on the dynamics of photodegradation and subsequent recovery of two-photon fluorescence in a dye-doped polymer. The energy dependence suggests that photodegradation 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. 

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