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Isolated few-attosecond emission in a multi-cycle asymmetrically nonhomogeneous two-color laser field
Yu, Chao1; Wang, Yunhui1; Cao, Xu1; Jiang, Shicheng1; Lu, Ruifeng1,2
关键词High-order Harmonic Generation Plasmon-enhanced Nonhomogeneous Laser Field Attosecond
刊名JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
2014-11-28
DOI10.1088/0953-4075/47/22/225602
47期:22
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
关键词[WOS]HIGH-HARMONIC-GENERATION ; PULSE GENERATION ; ENHANCEMENT ; NANOSTRUCTURES ; IONIZATION ; PLATEAU ; MOTION
英文摘要By solving the three-dimensional time-dependent Schrodinger equation, we present a theoretical investigation of helium-based high-order harmonic generation (HHG) in both symmetric and asymmetric spatially nonhomogeneous laser fields. It is determined that the harmonic cutoff is extended in both symmetric and asymmetric nonhomogeneous laser fields, and the spatial symmetry of the nonhomogeneous field greatly influences the movement of electronic wave packets, which subsequently affect harmonic emission. In particular, the spatially asymmetric distribution of the laser field will induce asymmetric recombination of electronic wave packets between the two sides of a helium atom, which could reduce the interference in HHG emission for every optical cycle. In combination with the two-color technique, multi-cycle laser pulses with asymmetric spatially nonhomogeneous characteristics are capable of generating a coherent extreme ultraviolet supercontinuum, which can be used to produce isolated few-attosecond pulses.
语种英语
WOS记录号WOS:000344499200027
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145852
专题中国科学院大连化学物理研究所
作者单位1.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
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Yu, Chao,Wang, Yunhui,Cao, Xu,et al. Isolated few-attosecond emission in a multi-cycle asymmetrically nonhomogeneous two-color laser field[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2014,47(22).
APA Yu, Chao,Wang, Yunhui,Cao, Xu,Jiang, Shicheng,&Lu, Ruifeng.(2014).Isolated few-attosecond emission in a multi-cycle asymmetrically nonhomogeneous two-color laser field.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,47(22).
MLA Yu, Chao,et al."Isolated few-attosecond emission in a multi-cycle asymmetrically nonhomogeneous two-color laser field".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 47.22(2014).
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