Orientation-dependent forward-backward photoelectron holography from asymmetric molecules

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	Orientation-dependent forward-backward photoelectron holography from asymmetric molecules
	Bian, Xue-Bin 1,2; Bandrauk, Andre D.2
刊名	PHYSICAL REVIEW A
	2014-03-24
卷号	89 期号:3
英文摘要	Orientation-dependent photoelectron holography from the one-electron polar molecular ion HeH2+ in linearly polarized few-cycle laser fields is studied numerically. We identify four dominant holography patterns simultaneously with one shot of lasers and show that these are sensitive to the molecular structure and the orientation angle between the molecular axis and laser polarization direction. Due to the preferential enhanced ionization from one direction of the molecular axis, two kinds of forward photoelectron holography and two backward holography interference patterns predicted by a semiclassical model showup simultaneously for parallel orientation. Coulomb focusing effects are shown to be crucial for the backward scattering holography and a weak forward scattering holography channel with relatively small overlap. In contrast, after increasing the orientation angle, the backward scattering patterns disappears gradually because of the smaller scattering cross sections. Only one forward scattering holography can be clearly identified in the perpendicular orientation. Ultrashort and intense laser pulses are shown to be preferred for photoelectron holography. Intercycle interference rings in the above-threshold ionization are suppressed and consequently the intracycle rescattering signals are enhanced.
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]	ABOVE-THRESHOLD IONIZATION ; FIELD ; QUANTUM
收录类别	SCI
语种	英语
WOS记录号	WOS:000333362400004
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1397]
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.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 2.Univ Sherbrooke, Dept Chim, Lab Chim Theor, Sherbrooke, PQ J1K 2R1, Canada
推荐引用方式 GB/T 7714	Bian, Xue-Bin,Bandrauk, Andre D.. Orientation-dependent forward-backward photoelectron holography from asymmetric molecules[J]. PHYSICAL REVIEW A,2014,89(3).
APA	Bian, Xue-Bin,&Bandrauk, Andre D..(2014).Orientation-dependent forward-backward photoelectron holography from asymmetric molecules.PHYSICAL REVIEW A,89(3).
MLA	Bian, Xue-Bin,et al."Orientation-dependent forward-backward photoelectron holography from asymmetric molecules".PHYSICAL REVIEW A 89.3(2014).