WEIDNER, P and PENZKOFER, A (1995) PICOSECOND TRANSIENT SPECTRAL HOLE-BURNING STUDIES ON OXAZINE-750 IN A SILICATE XEROGEL. CHEMICAL PHYSICS, 191 (1-3). pp. 303-319. ISSN 0301-0104, 1873-4421
Full text not available from this repository.Abstract
Transient spectral hole-burning is studied experimentally and theoretically. Measurements are carried out on a silicate xerogel sample doped with oxazine 750. A picosecond pump and probe technique is employed using a mode-locked ruby laser and an optical fiber light continuum generator. The temperature is varied in a range from 8 to 295 K. A vibronic transition hole-burning situation is observed (no zero-phonon transition is resolved). The population hole linewidth in the S-0 band and the population antihole linewidth in the S-1 band increase from Delta ($) over tilde v(h) approximate to 22 cm(-1) at 8 K to Delta ($) over tilde v(h) approximate to 75 cm(-1) at 295 K. The inhomogeneous linewidth is Delta ($) over tilde v(inh) approximate to 700 cm(-1). For the observed vibronic transition situation an analytical scheme is presented for the approximate determination of the homogeneous linewidth, and a numerical differential equation system is derived and applied for a detailed analysis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TIME-RESOLVED FLUORESCENCE; LONG-WAVELENGTH REGION; S0-S1 ABSORPTION-BAND; ULTRAFAST TRANSIENT; DYE MOLECULES; POLAR-SOLVENTS; RHODAMINE 6G; PHOTON-ECHO; SOLVATION; RELAXATION; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52750 |
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