Mechanisms of the refractive index change in DO11/PMMA due to photodegradation

Abstract

Using a white light interferometric microscope (WLIM) we measure the photodamage induced change in the complex index of refraction of disperse orange 11 (DO11) dye-doped (poly)methyl-methacrylate. We find that the change in the imaginary part of the refractive index is consistent with previous measurements of photodamage-induced absorbance change. Additionally, we find that the change in the real refractive index can be separated into a component due to damage to the dye molecules and a component due to irreversible damage to the polymer.

5 pages 6 figures

References in corpus (5)

• Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer
• A Self Healing Model Based on Polymer-Mediated Chromophore Correlations
• 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
• The effect of pump depletion on reversible photodegradation

Cited by in corpus (4)

• Photodegradation and self-healing in a Rhodamine 6G dye and Y${}_2$O${}_3$ nanoparticle-doped polyurethane random laser
• Self-healing organic-dye-based random lasers
• Random Lasing and Reversible Photodegradation in Disperse Orange 11 Dye-Doped PMMA with Dispersed ZrO${}_2$ Nanoparticles
• Wavelength dependence of reversible photodegradation of disperse orange 11 dye-doped PMMA thin films