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题名: Double Ionization of Nitrogen from Multiple Orbitals
作者: Wu, Zhifeng1;  Wu, Chengyin1;  Liu, Xianrong1;  Deng, Yongkai1;  Gong, Qihuang1;  Song, Di2;  Su, Hongmei2
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2010-07-01
DOI: 10.1021/jp1018197
卷: 114, 期:25, 页:6751-6756
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: In intense femtosecond laser fields, molecules could be tunnel ionized from multiple valence orbitals, which produces molecular ions in different electronic states. In this article, we have used a reaction microscope to study double ionization of nitrogen by intense femtosecond laser pulses. It is found that some doubly charged molecular ions N(2)(2+) are metastable while others dissociate through charge symmetric dissociation (N(2)(2+) -> N(+) + N(+)) or charge asymmetric dissociation (N(2)(2+) -> N(2+) + N). The kinetic energy releases and angular distributions of atomic ions are measured for the dissociation channels. With the aid of the CASSCF and MRCI calculations, the electronic states are identified and the contributions of the valence orbitals are discussed for these dissociated molecular dications.
关键词[WOS]: HIGH HARMONIC-GENERATION ;  ULTRASHORT LASER-PULSES ;  STRONG-FIELD IONIZATION ;  COULOMB EXPLOSION ;  MOLECULAR IONIZATION ;  FRAGMENTATION ;  DYNAMICS ;  N-2 ;  SPECTROSCOPY ;  HYDROGEN
语种: 英语
WOS记录号: WOS:000278981900003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142092
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.Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Chem, BNLMS, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China

Recommended Citation:
Wu, Zhifeng,Wu, Chengyin,Liu, Xianrong,et al. Double Ionization of Nitrogen from Multiple Orbitals[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(25):6751-6756.
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