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

M. Fujiwara, M. Sugisaki, A. Gall, B. Robert, R. J. Cogdell, H. Hashimoto

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

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 β-carotene and lycopene. The results indicate that the C {double bond, long} C central stretching mode shows significant loss of coherence under the effects of the steric hindrance between β-ionone ring and polyene backbone, whereas the other high-frequency modes do not show such dependency on the structural distortions.

Original languageEnglish
Pages (from-to)1808-1812
Number of pages5
JournalJournal of Luminescence
Volume129
Issue number12
DOIs
Publication statusPublished - Dec 2009
Externally publishedYes

Keywords

  • β-ionone
  • Carotenoids
  • Coherent oscillations
  • Four-wave mixing
  • Structural distortion
  • Transient grating
  • Ultrafast spectroscopy

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Ultrafast optical responses of β-carotene and lycopene probed by sub-20-fs time-resolved coherent spectroscopy'. Together they form a unique fingerprint.

Cite this