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

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 τ = 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.

5 pages, 8 figures

References in corpus (2)

• Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer
• Two-photon fluorescence measurements of reversible photodegradation in a dye-doped polymer

Cited by in corpus (11)

• Photodegradation and self-healing in a Rhodamine 6G dye and Y${}_2$O${}_3$ nanoparticle-doped polyurethane random laser
• Random Lasing and Reversible Photodegradation in Disperse Orange 11 Dye-Doped PMMA with Dispersed ZrO${}_2$ Nanoparticles
• A Self Healing Model Based on Polymer-Mediated Chromophore Correlations
• Spectroscopic studies of the mechanism of reversible photodegradation of 1-substituted aminoanthraquinone-doped polymers
• Generalizing the correlated chromophore domain model of reversible photodegradation to include the effects of an applied electric field
• The influence of an electric field on photodegradation and self healing in disperse orange 11 dye-doped PMMA thin films
• Testing the diffusion hypothesis as a mechanism of self-healing in Disperse orange 11 doped in PMMA
• The effect of pump depletion on reversible photodegradation
• Mechanisms of the refractive index change in DO11/PMMA due to photodegradation
• Wavelength dependence of reversible photodegradation of disperse orange 11 dye-doped PMMA thin films
• A White Light Interferometric Microscope for Measuring Dose-Dependent Reversible Photodegradation