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Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields
Yao, Jinping; Jiang, Shicheng; Chu, Wei; Zeng, Bin; Wu, Chengyin; Lu, Ruifeng; Li, Ziting; Xie, Hongqiang; Li, Guihua; Yu, Chao; Wang, Zhanshan; Jiang, Hongbing; Gong, Qihuang; Cheng, Ya; cywu@pku.edu.cn; rflu@njust.edu.cn; ya.cheng@siom.ac.cn
2016
Source PublicationPhys. Rev. Lett.
Volume116Issue:14
AbstractWe carry out a combined theoretical and experimental investigation on the population distributions in the ground and excited states of tunnel-ionized nitrogen molecules at various driver wavelengths in the near- and midinfrared range. Our results reveal that efficient couplings (i.e., population exchanges) between the ground N-2(+)(X-2 Sigma(+)(g)) state and the excited N-2(+)(A(2)Pi(u)) and N-2(+)(B-2 Sigma(+)(u)) states occur in strong laser fields. The couplings result in a population inversion between the N-2(+)(X-2 Sigma(+)(g)) and N-2(+)(B-2 Sigma(+)(u)) states at wavelengths near 800 nm, which is verified by our experimental observation of the amplification of a seed at similar to 391 nm. The result provides insight into the mechanism of free-space nitrogen ion lasers generated in remote air with strong femtosecond laser pulses.
SubtypeArticle
Department强光
DOI10.1103/PhysRevLett.116.143007
Funding OrganizationNational Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357]
Indexed BySCI
Funding OrganizationNational Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357] ; National Basic Research Program of China [2013CB922403, 2014CB921303]; National Natural Science Foundation of China [11134010, 61590934, 21373113, 11474009, 11434002, 61575211, 11304330, 11404357]
WOS IDWOS:000373587800007
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27704
Collection强场激光物理国家重点实验室
Corresponding Authorcywu@pku.edu.cn; rflu@njust.edu.cn; ya.cheng@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Yao, Jinping,Jiang, Shicheng,Chu, Wei,et al. Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields[J]. Phys. Rev. Lett.,2016,116(14).
APA Yao, Jinping.,Jiang, Shicheng.,Chu, Wei.,Zeng, Bin.,Wu, Chengyin.,...&ya.cheng@siom.ac.cn.(2016).Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields.Phys. Rev. Lett.,116(14).
MLA Yao, Jinping,et al."Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields".Phys. Rev. Lett. 116.14(2016).
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