Imaging Studies of photodamage and self-healing in disperse orange 11 dye-doped PMMA

Details Imaging Studies of photodamage and self-healing in disperse orange 11 dye-doped PMMA Imaging Studies of photodamage and self-healing in disperse orange 11 dye-doped PMMA

2011-03-31

arxiv.org/abs/1103.6093v1

Journal of the Optical Society of America B, Vol. 28, No. 3, March 2011

Physics

Optics

5 pages, 8 figures

Scientific paper

We report on optical imaging studies of self-healing after laser-induced photodamage in disperse orange 11 dye doped into poly(methyl methacrylate) (PMMA) polymer. In particular, the high spatial-contrast image of the damage track made by a line focus pump laser allows the recovery rates to be measured as a function of burn dose using the relationship between transverse distance and pump intensity profile. The time evolution of the damaged population results in an intensity-independent time constant of {\tau} = 490\pm23 min, in agreement with independent measurements of the time evolution of amplified spontaneous emission. Also observed is a damage threshold above which the material does not fully recover.

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