Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field

doi:10.1364/JOSAB.35.000A84

	Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field
	Li, Wenliang 2,3; Feng, Liqiang 1,2; Liu, Hang 1; Li, Yi 1
刊名	JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
	2018-05-01
卷号	35 期号:5 页码:A84-A92
ISSN号	0740-3224
DOI	10.1364/JOSAB.35.000A84
文献子类	Article
英文摘要	An efficient method of producing KeV single-attosecond pulses (SAPs) is proposed and investigated through the combination of a multi-cycle two-color mid-infrared field and a few-cycle near-infrared field in a metal nano-structure. It is found that by properly controlling the carrier envelope phases (CEPs) and delay time of the three-color field, not only can the quantum path of the harmonic emission be controlled, but the harmonic yield can also be enhanced by 2 orders of magnitude, leading to a high-intensity supercontinuum with contribution from only one harmonic emission event. Further, with the introduction of the inhomogeneous effect of the laser field, the harmonics emitted at the higher orders that generate SAPs occur only at one side of the region inside the nanostructure. As a result, not only can the harmonic cutoff be extended, but the modulations of the harmonics can also be decreased, showing a supercontinuum with a cutoff in the KeV region. Finally, by selecting the generated harmonics, a series of sub-35-attosecond pulses in the extreme ultraviolet (XUV) or the x-ray region can be produced. Particularly when superposing the harmonics around the cutoff region, a KeV-SAP as short as 34 attoseconds can be obtained. (C) 2018 Optical Society of America
WOS关键词	HIGH-HARMONIC-GENERATION ; BROAD-BAND SUPERCONTINUUM ; LASER FIELD ; ENHANCEMENT ; NANOSTRUCTURES ; IONIZATION ; H-2(+) ; DRIVEN ; LIGHT ; ATOM
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000431180600002
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167124]
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
通讯作者	Feng, Liqiang
作者单位	1.Liaoning Univ Technol, Coll Sci, Lab Modern Phys, Jinzhou 121001, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Xinjiang Inst Engn, Dept Phys, Urumqi 830091, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenliang,Feng, Liqiang,Liu, Hang,et al. Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,2018,35(5):A84-A92.
APA	Li, Wenliang,Feng, Liqiang,Liu, Hang,&Li, Yi.(2018).Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field.JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS,35(5),A84-A92.
MLA	Li, Wenliang,et al."Generation of high-intensity KeV single-attosecond pulse using multi-cycle spatial inhomogeneous mid-infrared field".JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 35.5(2018):A84-A92.