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题名: Dynamics of excited OCS investigated by resonance-enhanced multiphoton ionization
作者: Liu, HP;  Zhang, JY;  Ying, SH;  Xu, DL;  Jiang, B;  Wang, L;  Lou, NQ
刊名: PHYSICAL REVIEW A
发表日期: 2002-05-01
DOI: 10.1103/PhysRevA.65.052503
卷: 65, 期:5, 页:52503-52503
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Optics ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Optics ;  Physics
英文摘要: The predissociation decay behavior of molecule carbonyl sulfide (OCS) has been investigated by resonance-enhanced multiphoton ionization spectroscopy using the pump-probe technique of dichroic femtosecond lasers in real time. The lifetime of excited OCS around 74 720 cm(-1) by two-photon absorption of 268 nm, corresponding to upsilon(1)=1 of the Rydberg state [(2)Pi(1/2)]4ppi((1)Sigma(+)), is directly determined to be tau(D)=1071+/-11 fs. This picosecond decay process indicates that the excited state is predissociative. The temporal information of dissociation enriches the knowledge of the potential-energy surface of the associative excited state.
关键词[WOS]: PHOTOFRAGMENT EXCITATION SPECTROSCOPY ;  CM(-1) ENERGY REGION ;  CARBONYL SULFIDE ;  POLYATOMIC-MOLECULES ;  SULFUR-COMPOUNDS ;  223 NM ;  PHOTODISSOCIATION ;  STATE ;  DISTRIBUTIONS ;  POLARIZATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000175743800074
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/83907
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Liu, HP,Zhang, JY,Ying, SH,et al. Dynamics of excited OCS investigated by resonance-enhanced multiphoton ionization[J]. PHYSICAL REVIEW A,2002,65(5):52503-52503.
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