An unusual laser-induced, reversible, crystal structure distortion in a dilute actinide material, 0.1% Cm'+ : CeF,, is reported. Distortion of one of two non-equivalent actinide ion sites occurs after photoexcitation of 5f states of Cm'+. Distinct spectral lines of the distorted ion site were detec
Persistent spectral hole-burning in heme proteins: Cytochrome c and myoglobin
β Scribed by J. Pahapill; L. Rebane
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 439 KB
- Volume
- 158
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Analysis of the holeshapes allowed us to separate the homogeneous and inhomogeneous broadening contributions to this absorption band. The lifetimes T, of the excited states at 4.2 K are estimated to he not less than 80 and 30 fs for ferrocytochrome c and oxymyoglobin, respectively.
π SIMILAR VOLUMES
We have used persistent spectral hole-burning to investigate free-base octaethylporphine (OEP) physisorbed on y-alumina. This system combines the efficient photochemical hole-burning mechanism of free-base porphines with the idea of decoupling the chromophores from the surrounding by using surface a