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

被引：6

作者：

Fujiwara, M. ^{[1
,2
]}

Sugisaki, M. ^{[1
,2
]}

Gall, A. ^{[3
,4
]}

Robert, B. ^{[3
,4
]}

Cogdell, R. J. ^{[5
]}

Hashimoto, H. ^{[1
,2
]}

机构：

[1] Osaka City Univ, CREST, JST, Osaka 5588585, Japan

[2] Osaka City Univ, Dept Phys, Osaka 5588585, Japan

[3] Inst Biol & Technol Saclay, CEA, F-91191 Gif Sur Yvette, France

[4] CNRS, F-91191 Gif Sur Yvette, France

[5] Univ Glasgow, IBLS, Glasgow Biomed Res Ctr, Glasgow G12 8QQ, Lanark, Scotland

来源：

JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 12期

基金：

日本学术振兴会; 日本科学技术振兴机构; 英国生物技术与生命科学研究理事会;

关键词：

Ultrafast spectroscopy; Transient grating; Four-wave mixing; Coherent oscillations; Carotenoids; Structural distortion; beta-ionone; DYNAMICS;

D O I：

10.1016/j.jlumin.2009.04.098

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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-catotene 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. (C) 2000 Elsevier B.V. All rights reserved.

引用

页码：1808 / 1812

页数：5

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