Recovery of photodegraded rhodamine 6g in ester-containing polymer matrices.

  title={Recovery of photodegraded rhodamine 6g in ester-containing polymer matrices.},
  author={Nicholas D. Christianson and Yunli Lu and Nathan J. Dawson},
  journal={Photochemical \& photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology},
Self-healing, rhodamine 6g, dye-doped polymers are reported. The amplified spontaneous emission (ASE) photodegrades after repeated exposure to 532 nm laser light at 10 Hz. Recovery of the ASE signal is observed in dye-doped thermoplastic polyurethane and glycol-modified poly(ethylene terephthalate); both polymers contain repeating ester groups in their backbone. The polymer ester groups are hypothesized to mediate the full recovery of rhodamine 6g from a photodegraded state. A small amount of… 
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