Controlling non-sequential double ionization with chirped laser pulse

doi:10.1088/1361-6455/ab1bb9

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	Controlling non-sequential double ionization with chirped laser pulse
	Lv, Wujun
刊名	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
	2019-07-14
卷号	52 期号:13
关键词	non-sequential double ionization chirped laser pulse electron dynamics
ISSN号	0953-4075
DOI	10.1088/1361-6455/ab1bb9
英文摘要	The non-sequential double ionization (NSDI) of He in a chirped few-cycle laser pulse is studied using a full-dimensional semi-classical model. The NSDI probability is found to be very sensitive to the rate of wavelength change. An abrupt jump is found in the probability distribution during the crossover from up- to down-chirped pulse, followed with a further increase of the probability when keep increasing the rate of wavelength change. In the meantime, the correlated electron momentum distribution transfers from anti-correlated to a correlated pattern. Further analysis reveals the underlying mechanism to be the increase of the kinetic energy of returned electron acquired from the chirped pulse in the re-collision process. The dominant NSDI mechanism transfers from recollision-induced excitation with subsequent field ionization (RESI) to electron-impact ionization (EI). Therefore, the chirped laser pulse could be a useful tool for controlling the electron dynamics in NSDI and beyond.
WOS研究方向	Optics ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000471639700001
内容类型	期刊论文
源URL	[http://10.2.47.112/handle/2XS4QKH4/198]
专题	上海财经大学
通讯作者	Lv, Wujun
作者单位	Shanghai Univ Finance & Econ, Sch Math, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Lv, Wujun. Controlling non-sequential double ionization with chirped laser pulse[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2019,52(13).
APA	Lv, Wujun.(2019).Controlling non-sequential double ionization with chirped laser pulse.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,52(13).
MLA	Lv, Wujun."Controlling non-sequential double ionization with chirped laser pulse".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 52.13(2019).