Investigating tunneling process of atom exposed in circularly polarized strong-laser field

	Investigating tunneling process of atom exposed in circularly polarized strong-laser field
	Yuan, MingHu 3; Xin, PeiPei 3; Chu, TianShu 1,2; Liu, HongPing 3
刊名	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
	2017-03-14
卷号	50 期号:5
关键词	time-dependent Schrodinger equation tunneling time instantaneous ionization rate
英文摘要	We propose a method for studying the tunneling process by analyzing the instantaneous ionization rate of a circularly polarized laser. A numerical calculation shows that, for an atom exposed to a long laser pulse, if its initial electronic state wave function is non-spherical symmetric, the delayed phase shift of the ionization rate vs the laser cycle period in real time in the region close to the peak intensity of the laser pulse can be used to probe the tunneling time. In this region, an obvious time delay phase shift of more than 190 attoseconds is observed. Further study shows that the atom has a longer tunneling time in the ionization under a shorter wavelength laser pulse. In our method, a Wigner rotation technique is employed to numerically solve the time-dependent Schrodinger equation of a single-active electron in a three-dimensional spherical coordinate system.
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]	ATTOSECOND ANGULAR STREAKING ; ABOVE-THRESHOLD-IONIZATION ; TRAVERSAL-TIME ; DELAY-TIME ; BARRIER ; ENHANCEMENT ; WAVE
收录类别	SCI
语种	英语
WOS记录号	WOS:000411269400003
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/150143]
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
作者单位	1.Qingdao Univ, Coll Chem Sci & Engn, Growing Base State Key Lab & Coll Phys, Lab New Fiber Mat & Modern Text,Inst Computat Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonances & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Yuan, MingHu,Xin, PeiPei,Chu, TianShu,et al. Investigating tunneling process of atom exposed in circularly polarized strong-laser field[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2017,50(5).
APA	Yuan, MingHu,Xin, PeiPei,Chu, TianShu,&Liu, HongPing.(2017).Investigating tunneling process of atom exposed in circularly polarized strong-laser field.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,50(5).
MLA	Yuan, MingHu,et al."Investigating tunneling process of atom exposed in circularly polarized strong-laser field".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 50.5(2017).