Two-center interference in molecular photoelectron energy spectra with intense attosecond circularly polarized XUV laser pulses

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	Two-center interference in molecular photoelectron energy spectra with intense attosecond circularly polarized XUV laser pulses
	Yuan, Kai-Jun 1; Bian, Xue-Bin 2; Bandrauk, Andre D.1
刊名	PHYSICAL REVIEW A
	2014-08-06
卷号	90 期号:2
英文摘要	We study two-center electron interference in molecular photoionization processes by intense attosecond circularly polarized extreme ultraviolet (XUV) laser pulses in both symmetric H-2(+) and nonsymmetric HHe2+ one-electron diatomic systems. Simulations from numerical solutions of time-dependent Schrodinger equations for the oriented symmetric molecular ion H-2(+) exhibit a signature of interference with double peaks (minima) in molecular attosecond photoelectron energy spectra (MAPES) at critical angles theta(c) between the continuum electron momentum p(e) and the molecular internuclear R axis. The interference patterns are shown to be influenced by the molecular Coulomb potential, leading to a shift of the critical angle theta(c). Dependence of the two-center interference on the pulse ellipticity is also investigated. Furthermore, it is found that the interference phenomena are critically sensitive to the molecular orbital symmetry. For the nonsymmetric molecular ion HHe2+, such double peaks in MAPES also occur, thus suggesting a method for imaging orbitals in molecules by intense ultrashort circularly polarized XUV pulses on the attosecond time scale.
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]	INDUCED ELECTRON-DIFFRACTION ; HARMONIC-GENERATION ; DIATOMIC-MOLECULES ; FIELD ; IONIZATION ; PHOTOIONIZATION ; EXCITATION ; DYNAMICS ; PHYSICS ; WAVE
收录类别	SCI
语种	英语
WOS记录号	WOS:000341263600007
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1429]
专题	武汉物理与数学研究所_理论与交叉研究部
作者单位	1.Univ Sherbrooke, Fac Sci, Chim Theor Lab, Sherbrooke, PQ J1K 2R1, Canada 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Kai-Jun,Bian, Xue-Bin,Bandrauk, Andre D.. Two-center interference in molecular photoelectron energy spectra with intense attosecond circularly polarized XUV laser pulses[J]. PHYSICAL REVIEW A,2014,90(2).
APA	Yuan, Kai-Jun,Bian, Xue-Bin,&Bandrauk, Andre D..(2014).Two-center interference in molecular photoelectron energy spectra with intense attosecond circularly polarized XUV laser pulses.PHYSICAL REVIEW A,90(2).
MLA	Yuan, Kai-Jun,et al."Two-center interference in molecular photoelectron energy spectra with intense attosecond circularly polarized XUV laser pulses".PHYSICAL REVIEW A 90.2(2014).