Attosecond chirp effect on the transient absorption spectrum of laser-dressed helium atom

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Attosecond chirp effect on the transient absorption spectrum of laser-dressed helium atom
	Zeng, Zhinan; Zhao, Haiwen; Liu, Candong; Zheng, Yinghui; Li, Ruxin
刊名	Opt. Express
	2017
卷号	25 期号:7 页码:7707
通讯作者	cdliu@siom.ac.cn ; zhinan_zeng@mail.siom.ac.cn
英文摘要	We theoretically investigate the attosecond transient absorption spectrum of helium atom in the presence of an infrared-dressed laser pulse upon scanning their relative delay, with the particular emphasis on the chirp effect of the attosecond pulse. By numerically solving the fully three-dimensional time-dependent Schrdinger equation, we identify the attoscecond chirp can induce the temporal shift of the absorption spectrogram along the delay axis. Additionally, it is found that the extent of the temporal shift is dependent on both the position of the absorption line and the infrared pulse wavelength, which is well confirmed and reproduced by a three-level model. Moreover, we demonstrate that the observed features can be quantitatively explained in terms of the indirect two-photon absorption processes through some virtual states. This effect might provide a way to measure the chirp of attosecond pulse in an all-optical way. (C) 2017 Optical Society of America
收录类别	SCI
资助信息	National Natural Science Foundation of China [61690223, 11561121002, 61521093, 11127901, 11227902, 11404356, 11574332]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB16]; Shanghai Commission of Science and Technology Sailing Project [14YF1406000]; Shanghai Institute of Optics and Fine Mechanics Specialized Research Fund [1401561J00]; Youth Innovation Promotion Association CAS
WOS记录号	WOS:000398536000049
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27563]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Zeng, Zhinan,Zhao, Haiwen,Liu, Candong,et al. Attosecond chirp effect on the transient absorption spectrum of laser-dressed helium atom[J]. Opt. Express,2017,25(7):7707.
APA	Zeng, Zhinan,Zhao, Haiwen,Liu, Candong,Zheng, Yinghui,&Li, Ruxin.(2017).Attosecond chirp effect on the transient absorption spectrum of laser-dressed helium atom.Opt. Express,25(7),7707.
MLA	Zeng, Zhinan,et al."Attosecond chirp effect on the transient absorption spectrum of laser-dressed helium atom".Opt. Express 25.7(2017):7707.