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题名: Femtosecond resonance-enhanced multiphoton-ionization photoelectron spectrum of ammonia
作者: Liu, Hong Ping;  Yin, Shu Hui;  Zhang, Jian Yang;  Wang, Li;  Jiang, Bo;  Lou, Nan Quan
刊名: PHYSICAL REVIEW A
发表日期: 2006-11-01
DOI: 10.1103/PhysRevA.74.053418
卷: 74, 期:5
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: We have studied the multiphoton dissociation dynamics of the E-' (1)A(1)(') Rydberg state of ammonia (NH3) on a homebuilt femtosecond pump-probe system by resonance-enhanced multiphoton ionization photoelectron (REMPI-PE) spectroscopy. The highly excited Rydberg state, E-'1 A(1)('), of ammonia was accessed by two 267 nm pump photons and then ionized by a 401 nm probe pulse delayed in time. The variation of the REMPI-PE spectra of ammonia with pump-probe delay time provides valuable information on the dynamics of the excited intermediate accessed by the pump pulse. We find that the Frank-Condon preferred transition during ionization does not occur for Delta upsilon(1)=0 but for Delta upsilon(1)=1, which implies that the intermediate has a different geometry from the ionic ground state. Different dynamical behavior has been observed for each of the transitions Delta upsilon(1)=0,1,2,3, giving a full temporal description of the excited intermediate state by projection onto the eigenspace of the ionic ground state.
关键词[WOS]: SELECTIVE PHOTODISSOCIATION DYNAMICS ;  ENERGY ELECTRON-SPECTROSCOPY ;  RAMAN EXCITATION PROFILES ;  (A)OVER-TILDE STATE ;  SYMMETRICAL TOPS ;  RYDBERG STATES ;  LASER-PULSES ;  CLUSTER IONS ;  NH3 ;  ABSORPTION
语种: 英语
WOS记录号: WOS:000242408900113
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140038
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, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
2.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Hong Ping,Yin, Shu Hui,Zhang, Jian Yang,et al. Femtosecond resonance-enhanced multiphoton-ionization photoelectron spectrum of ammonia[J]. PHYSICAL REVIEW A,2006,74(5).
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