22 November 2011 Recent progress in reversible photodegradation of Disperse Orange 11 when doped in PMMA
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Abstract
We report observations that dye-doped PMMA polymer with the organic dye Disperse Orange 11 exhibits self healing after photodegradation by continuous optical pumping whereas in liquid solution, degradation is permanent. This observation illustrates the important role of the polymer matrix in facilitating recovery of the dye molecules. In this work, we report on linear optical absorbance studies that confirm the existence of a quasi-stable state that is not formed in liquid solution. Studies as a function of dye concentration and temperature support our hypothesis of the role of molecular interactions in the decay and healing process that is mediated by the polymer host.
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Shiva K. Ramini, Benjamin Anderson, Mark G. Kuzyk, "Recent progress in reversible photodegradation of Disperse Orange 11 when doped in PMMA", Proc. SPIE 8190, Laser-Induced Damage in Optical Materials: 2011, 81900P (22 November 2011); doi: 10.1117/12.899102; https://doi.org/10.1117/12.899102
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