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arXiv · 1103.6093

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

Benjamin Anderson·Shiva K. Ramini·Mark G. Kuzyk
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Abstract

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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Benjamin Anderson, Shiva K. Ramini, Mark G. Kuzyk. 2011-03-31. Imaging Studies of photodamage and self-healing in disperse orange 11 dye-doped PMMA. https://doi.org/10.1364/josab.28.000528

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