Optical dephasing of chromophores in an organic glass: picosecond photon echo and hole burning experiments
β Scribed by C.A. Walsh; M. Berg; L.R. Narasimhan; M.D. Fayer
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 551 KB
- Volume
- 130
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
The homogeneous optical dephasing times (T,) and the non-photochemical hole burning (NPHB) linewidths of resorutin in glycerol glass are reported from 1.1 to 25.5 K. At low temperature, the linewidths obtained from NPHB are substantially wider than the linewidths (l/x T2) obtained from photon echo m
Spectral holes have been burnt in the S r +-Se O-O transition of resorufin in two phases of ethanol glass between 0.3 and 4.2 K. The holewidths differ by a factor of 8 and follow a T '.3 dependence. The homogeneous linewidths (r,,,) in one of the phases are about half those derived from a photon-ech
Spectral holes have been burnt in the S, Go O-O transition of resorufin in polymethylmethacrylate (PMMA) and glycerol, and of free-base porphin (H,P) in PMMA and polyethylene (PE). The holewidths follow a T 'J dependence over almost two orders of magnitude in temperature and extrapolate to the fluor