Conjugation length dependence of relaxation kinetics in β-carotene homologs probed by femtosecond Kerr-gate fluorescence spectroscopy

Daisuke Kosumi, Kazuhiro Yanagi, Ritsuko Fujii, Hideki Hashimoto, Masayuki Yoshizawa

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Ultrafast dynamics of the optically allowed S2 (1 1 Bu+) state in all-trans-carotenoids with a number of conjugated double bonds, n = 7-15, has been investigated by femtosecond Kerr-gate fluorescence spectroscopy. The lifetime of the S2 state is determined eliminating effect of excess vibrational energy. The lifetime has a maximum for n = 9 and shows anomalous dependence on the energy gap between the S2 and S1 states.

Original languageEnglish
Pages (from-to)66-70
Number of pages5
JournalChemical Physics Letters
Volume425
Issue number1-3
DOIs
Publication statusPublished - 2006 Jul 3

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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