Susdorf, T. and Alvarez, M. and Holzer, W. and Penzkofer, Alfons and Amat-Guerri, F. and Liras, M. and Costela, A. and Garcia-Moreno, I. and Sastre, R. (2005) Photophysical characterisation of some dipyrromethene dyes in ethyl acetate and covalently bound to poly(methyl methacrylate). CHEMICAL PHYSICS, 312 (1-3). pp. 151-158. ISSN 0301-0104, 1873-4421
Full text not available from this repository. (Request a copy)Abstract
Analogues of the dipyrromethene-BF2, dye PM567 modified at the 8-position by acetoxymethyl (PlAc), s-acetoxypentyl (P5Ac), and p-acetoxymethylphenyl (PArlAc) groups are studied in ethyl acetate solution. PM567 modified at the 8-position by methacryloyloxymethyl (PlMA), s-methacryloyloxypentyl (P5MA), and p-methacryloyloxymethylphenyl (PArlMA) groups have been copolymerized with methyl methacrylate (MMA), and these solid samples are also studied. The absorption cross-section and stimulated emission cross-section spectra are determined. The fluorescence quantum distributions and fluorescence lifetimes are measured. Saturable absorption measurements with picosecond laser excitation are carried out for excited-state absorption cross-section determination at the excitation wavelength. The photo-degradation of the dyes is studied under cw laser excitation conditions and quantum yields of photo-degradation are extracted. (c) 2004 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PYRROMETHENE 567 DYE; LASER PROPERTIES; SOLID MATRICES; METHYL-METHACRYLATE; LASING PROPERTIES; HOST MEDIA; RHODAMINE 6G; STATE; FLUORESCENCE; PULSES; dipyrromethene dyes; dipyrromethene dyes covalently bound to PMMA; absorption spectroscopy; fluorescence spectroscopy; saturable absorption; excited-state absorption; photo-degradation |
| 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: | 10 May 2021 09:16 |
| Last Modified: | 10 May 2021 09:16 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36009 |
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