Imaging studies of photodamage and self-healing in disperse orange 11 dye-doped PMMA
نویسندگان
چکیده
منابع مشابه
Mechanisms of reversible photodegradation in disperse orange 11 dye doped in PMMA polymer.
We use amplified spontaneous emission (ASE) and linear absorption spectroscopy to study the mechanisms of reversible photodegradation of 1-amino-2-methylanthraquinone (disperse orange 11-DO11) in solid poly(methyl methacrylate). Measurements as a function of intensity, concentration, and time suggest that ASE originates in a state (be it a tautomer or a vibronic level) that can form a dimer or ...
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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 and the lasing threshold for 0.5 wt% being 121.1 ± 2.1 MW/cm, with the linewidth for both concentrations found t...
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thin films of polymer doped with nonlinear optical organic dye, disperse red 1, at thickness of 1 to 2 micrometers, were prepared and studied. in order to induce an axial and orientational alignment of dye molecules within polymer matrix, a contact electric field poling was used. by this process the inherent inversion symmetry in the polymer matrix was eliminated to achieve the desired macrosco...
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1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
STUDIES ON DYE DOPED POLYMERS Abstract
The fluorescence and amplified spontaneous emission characteristics of rhodamine 6G impregnated in polyacrylamide is reported in this chapter. Using amplified spontaneous emission gain radiative and related properties of this dye doped matrix was measured. It was found that photostability of rhodamine 6G is unusually high in this matrix compared to other polymer hosts like polyrnethylmethacrylate.
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America B
سال: 2011
ISSN: 0740-3224,1520-8540
DOI: 10.1364/josab.28.000528