Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields

doi:10.1103/PhysRevLett.116.143007

	Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields
	Yao, Jinping 1; Jiang, Shicheng 2; Chu, Wei 1; Zeng, Bin 1; Wu, Chengyin 3,4; Lu, Ruifeng 2,5; Li, Ziting 1,6; Xie, Hongqiang 1,7; Li, Guihua 1; Yu, Chao 2
刊名	PHYSICAL REVIEW LETTERS
	2016-04-08
卷号	116 期号:14
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.116.143007
文献子类	Article
英文摘要	We 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.
WOS关键词	MULTIELECTRON DYNAMICS ; IONIZATION ; DIFFRACTION ; GENERATION ; ORBITALS ; WAVE ; AIR
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000373587800007
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170686]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Wu, Chengyin; Lu, Ruifeng; Cheng, Ya
作者单位	1.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China 2.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China 3.Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 4.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 6.Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 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]. PHYSICAL REVIEW LETTERS,2016,116(14).
APA	Yao, Jinping.,Jiang, Shicheng.,Chu, Wei.,Zeng, Bin.,Wu, Chengyin.,...&Cheng, Ya.(2016).Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields.PHYSICAL REVIEW LETTERS,116(14).
MLA	Yao, Jinping,et al."Population Redistribution Among Multiple Electronic States of Molecular Nitrogen Ions in Strong Laser Fields".PHYSICAL REVIEW LETTERS 116.14(2016).