Excitonic and vibrational coherence in artificial photosynthetic systems studied by negative-time ultrafast laser spectroscopy

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Excitonic and vibrational coherence in artificial photosynthetic systems studied by negative-time ultrafast laser spectroscopy
	Han, Dongjia; Xue, Bing; Du, Juan; Kobayashi, Takayoshi; Miyatake, Tomohiro; Tamiaki, Hitoshi; Xing, Xin; Yuan, Wei; Li, Yanyan; Leng, Yuxin
刊名	Phys. Chem. Chem. Phys.
	2016
卷号	18 期号:35 页码:24252
通讯作者	dujuan@mail.siom.ac.cn ; lengyuxin@mail.siom.ac.cn
英文摘要	Quantum coherences between excitonic states are believed to have a substantial impact on excitation energy transfer in photosynthetic systems. Here, the excitonic and vibrational coherence relaxation dynamics of artificially synthetic chlorosomes are studied by a sub 7 fs negative-time-delay laser spectroscopy at room temperature. The results provide direct evidence for the quantum coherence of the excitonic dephasing time of 23 +/- 1 fs at physiologically relevant temperatures, which is significant in the initial step of energy transfer in chlorosome or chlorosome-like photosynthetic systems. Meanwhile, coherent molecular vibrations in the excited state are also detected without the effect of wave-packet motion in the ground state, which shows that the excited state wave-packet motion contributes greatly to the vibrational modes of similar to 150 and similar to 1340 cm(-1) in artificial chlorosome systems.
收录类别	SCI
资助信息	100 Talents Program of CAS; National Natural Science Foundation of China [61475169, 61521093, 11127901]
WOS记录号	WOS:000382766300011
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27611]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Han, Dongjia,Xue, Bing,Du, Juan,et al. Excitonic and vibrational coherence in artificial photosynthetic systems studied by negative-time ultrafast laser spectroscopy[J]. Phys. Chem. Chem. Phys.,2016,18(35):24252.
APA	Han, Dongjia.,Xue, Bing.,Du, Juan.,Kobayashi, Takayoshi.,Miyatake, Tomohiro.,...&Leng, Yuxin.(2016).Excitonic and vibrational coherence in artificial photosynthetic systems studied by negative-time ultrafast laser spectroscopy.Phys. Chem. Chem. Phys.,18(35),24252.
MLA	Han, Dongjia,et al."Excitonic and vibrational coherence in artificial photosynthetic systems studied by negative-time ultrafast laser spectroscopy".Phys. Chem. Chem. Phys. 18.35(2016):24252.