Journal article
Random lasing and reversible photodegradation in disperse orange 11 dye-doped PMMA with dispersed ZrO2 nanoparticles
Journal of optics (2010), Vol.18(1)
01/01/2016
Abstract
We report the observation of intensity feedback random lasing at 645 nm in disperse orange 11 dye-doped PMMA (DO11/PMMA) with dispersed ZrO2 nanoparticles (NPs). The lasing threshold is found to increase with concentration, with the lasing threshold for 0.1 wt% being 75.8 +/- 9.4 MW cm(-2) and the lasing threshold for 0.5 wt% being 121.1 +/- 2.1 MW cm(-2), with the linewidth for both concentrations found to be approximate to 10 nm. We also consider the material's photostability and find that it displays fully reversible photodegradation with the photostability and recovery rate being greater than previously observed for DO11/PMMA without NPs. This enhancement in photostability and recovery rate is found to be explicable by the modified correlated chromophore domain model, with the NPs resulting in the domain free energy advantage increasing from 0.29 eV to 0.41 eV. Additionally, the molecular decay and recovery rates are found to be in agreement with previous measurements of DO11/PMMA (Ramini et al 2013 Polym. Chem. 4 4938). These results present new avenues for the development of robust photodegradation-resistant organic dye-based optical devices.
Metrics
4 Record Views
Details
- Title
- Random lasing and reversible photodegradation in disperse orange 11 dye-doped PMMA with dispersed ZrO2 nanoparticles
- Creators
- Benjamin R. Anderson - Washington State Univ, Appl Sci Lab, Inst Shock Phys, Spokane, WA 99210 USARay Gunawidjaja - Washington State UniversityHergen Eilers - Washington State University
- Publication Details
- Journal of optics (2010), Vol.18(1)
- Academic Unit
- Institute for Shock Physics
- Publisher
- Iop Publishing Ltd
- Number of pages
- 10
- Grant note
- HDTRA1-13-1-0050 / Defense Threat Reduction Agency; United States Department of Defense
- Identifiers
- 99900876938101842
- Language
- English
- Resource Type
- Journal article