Ultrafast optical responses of beta-carotene and lycopene probed by sub-20 fs time-resolved coherent spectroscopy

Fujiwara, M., Sugisaki, M., Gall, A., Robert, B., Cogdell, R.J. and Hashimoto, H. (2009) Ultrafast optical responses of beta-carotene and lycopene probed by sub-20 fs time-resolved coherent spectroscopy. Journal of Luminescence, 129(12), pp. 1808-1812. (doi:10.1016/j.jlumin.2009.04.098)

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Abstract

We investigate how structural distortions in carotenoid cause decoherences of its high-frequency vibrational modes by applying the sub-20-fs time-resolved transient grating spectroscopy to [beta]-carotene and lycopene. The results indicate that the C=C central stretching mode shows significant loss of coherence under the effects of the steric hindrance between [beta]-ionone ring and polyene backbone, whereas the other high-frequency modes do not show such dependency on the structural distortions

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cogdell, Professor Richard
Authors: Fujiwara, M., Sugisaki, M., Gall, A., Robert, B., Cogdell, R.J., and Hashimoto, H.
Subjects:Q Science > QH Natural history > QH345 Biochemistry
Q Science > QC Physics
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Journal Name:Journal of Luminescence
ISSN:0022-2313
ISSN (Online):1872-7883
Published Online:29 May 2009

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