TY - JOUR
T1 - Excitation energy dependence of excited states dynamics in all-trans-carotenes determined by femtosecond absorption and fluorescence spectroscopy
AU - Kosumi, Daisuke
AU - Yanagi, Kazuhiro
AU - Nishio, Tomohiro
AU - Hashimoto, Hideki
AU - Yoshizawa, Masayuki
N1 - Funding Information:
This research was supported by JSPS.KAKENHI (14340089) to M. Yoshizawa and H. Hashimoto and (14340090 and 14654072) to H. Hashimoto. The authors would like to express their gratitude to Dr. Andrew Gall at University of Glasgow for the correction of the English text of the present manuscript.
PY - 2005/6/7
Y1 - 2005/6/7
N2 - Ultrafast relaxation kinetics in β-carotene and lycopene has been investigated by femtosecond absorption and fluorescence spectroscopies using tunable excitation pulses. The transient signals induced by the photoexcitation with larger excess energy have broader bands and longer lifetimes both in the 11Bu+and21Ag- excited states. The excess vibrational energy remains longer than several picoseconds and slows the relaxation kinetics in carotenoids.
AB - Ultrafast relaxation kinetics in β-carotene and lycopene has been investigated by femtosecond absorption and fluorescence spectroscopies using tunable excitation pulses. The transient signals induced by the photoexcitation with larger excess energy have broader bands and longer lifetimes both in the 11Bu+and21Ag- excited states. The excess vibrational energy remains longer than several picoseconds and slows the relaxation kinetics in carotenoids.
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U2 - 10.1016/j.cplett.2005.04.006
DO - 10.1016/j.cplett.2005.04.006
M3 - Article
AN - SCOPUS:18844395929
SN - 0009-2614
VL - 408
SP - 89
EP - 95
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -