Susdorf, T. and Del Agua, D. and Tyagi, A. and Penzkofer, A. and Garcia, O. and Sastre, R. and Costela, A. and Garcia-Moreno, I. (2007) Photophysical characterization of pyrromethene 597 laser dye in silicon-containing organic matrices. APPLIED PHYSICS B-LASERS AND OPTICS, 86 (3). pp. 537-545. ISSN 0946-2171, 1432-0649
Full text not available from this repository. (Request a copy)Abstract
Samples of dipyrromethene-BF2 dye PM597 incorporated in copolymers of 3-(trimethoxysilyl)propyl methacrylate (TMSPMA) with methyl methacrylate (MMA) and 2-hydroxyethylmethacrylate (HEMA), and in terpolymers of MMA, HEMA and TMSPMA are characterized. The absorption cross-section spectra, stimulated emission cross-section spectra, and the excited-state absorption cross-section at 527 nm are determined. The fluorescence quantum distributions and fluorescence lifetimes are measured. The photo-degradation is studied under cw laser excitation conditions and quantum yields of photo-degradation are extracted. PM597 solid state samples are compared with PM597 in liquid ethyl acetate solution. The fluorescence quantum yield of PM597 is higher in doped samples (around 70%) compared to PM597 in ethyl acetate (43%). The excited-state absorption cross-section was found to be negligibly small. The photo-stability is considerably larger in the polymeric samples compared to the liquid solutions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PICOSECOND LIGHT-PULSES; SOLID-STATE LASERS; POLY(METHYL METHACRYLATE); FLUORESCENCE BEHAVIOR; METHYL-METHACRYLATE; RHODAMINE 6G; EFFICIENT; PHOTOSTABILITY; COMPLEXES; ANALOGS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Dec 2020 12:03 |
| Last Modified: | 22 Dec 2020 12:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33193 |
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