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

文献类型：期刊论文

作者Chu, TianShu1,3; Xin, PeiPei2; Yuan, MingHu2; Liu, HongPing2
刊名JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
出版日期2017-03-14
卷号50期号:5
关键词Time-dependent Schrodinger Equation Tunneling Time Instantaneous Ionization Rate
DOI10.1088/1361-6455/aa5991
文献子类Article
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关键词ATTOSECOND ANGULAR STREAKING ; ABOVE-THRESHOLD-IONIZATION ; TRAVERSAL-TIME ; DELAY-TIME ; BARRIER ; ENHANCEMENT ; WAVE
WOS研究方向Optics ; Physics
语种英语
WOS记录号WOS:000411269400003
资助机构China Postdoctoral Science Foundation(2015M572229) ; China Postdoctoral Science Foundation(2015M572229) ; NSFC(11674359 ; NSFC(11674359 ; National Key Basic Research Program of China(2013CB922003) ; National Key Basic Research Program of China(2013CB922003) ; Shandong Provincial Natural Science Foundation, China(ZR2014AM025) ; Shandong Provincial Natural Science Foundation, China(ZR2014AM025) ; 91121005 ; 91121005 ; 91421305 ; 91421305 ; 11504412) ; 11504412) ; China Postdoctoral Science Foundation(2015M572229) ; China Postdoctoral Science Foundation(2015M572229) ; NSFC(11674359 ; NSFC(11674359 ; National Key Basic Research Program of China(2013CB922003) ; National Key Basic Research Program of China(2013CB922003) ; Shandong Provincial Natural Science Foundation, China(ZR2014AM025) ; Shandong Provincial Natural Science Foundation, China(ZR2014AM025) ; 91121005 ; 91121005 ; 91421305 ; 91421305 ; 11504412) ; 11504412)
源URL[http://ir.wipm.ac.cn/handle/112942/11406]  
专题武汉物理与数学研究所_原子分子光物理研究部
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, Wuhan Inst Phys & Math, State Key Lab Magnet Resonances & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Chu, TianShu,Xin, PeiPei,Yuan, MingHu,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 Chu, TianShu,Xin, PeiPei,Yuan, MingHu,&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 Chu, TianShu,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).

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来源：武汉物理与数学研究所

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