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	Generation of water window single attosecond pulse from multi-cycle mid-infrared laser field with chirp gating modulation
	Liu, Hang1,2; Schafer, Henry M.1,4; Feng, R. L. Q.1,2,3; Feng, A. Yuanzi1,4
刊名	Modern physics letters b
	2019-02-28
卷号	33期号:6页码:19
关键词	Single attosecond pulses High-order harmonic generation Chirp gating modulation Rydberg state Multi-cycle mid-infrared field
ISSN号	0217-9849
DOI	10.1142/s0217984919500647
通讯作者	Feng, a. yuanzi(ayzfeng@gmail.com)
英文摘要	A potential scheme to produce the water window single attosecond pulses (saps) from the multi-cycle mid-infrared (mir) laser field has been investigated with the help of the chirp gating modulation. it is found that with the introduction of the laser chirp (i.e. up-chirp or down-chirp modulation), the extension of the harmonic cutoff can be achieved and the single harmonic radiation peak (hrp) can be selected during the harmonic emission process. moreover, the chirp gating modulation on the high-order harmonic generation (hhg) is sensitive to the few-cycle pulse duration, but it is not very sensitive to the multi-cycle pulse duration. moreover, a larger extension of the harmonic cutoff covering the whole water window region can be found with the help of the multi-cycle down-chirp modulation. further, by properly choosing the coherent superposition of the ground state and the high rydberg state as the initial state, the efficiency of hhg can be enhanced by 5 orders of magnitude. finally, a series of high-intensity sub-40as pulses covering the water window region can be obtained.
WOS关键词	BROAD-BAND SUPERCONTINUUM ; ORDER HARMONIC-GENERATION ; ATOMS
WOS研究方向	Physics
WOS类目	Physics, Applied ; Physics, Condensed Matter ; Physics, Mathematical
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000460091400008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372672
专题	大连化学物理研究所
通讯作者	Feng, A. Yuanzi
作者单位	1.Liaoning Univ Technol, Lab Modern Phys, Jinzhou 121001, Peoples R China 2.Liaoning Univ Technol, Sch Chem & Environm Engn, Jinzhou 121001, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 4.Vienna Univ Technol, Photon Inst, A-1040 Vienna, Austria
推荐引用方式 GB/T 7714	Liu, Hang,Schafer, Henry M.,Feng, R. L. Q.,et al. Generation of water window single attosecond pulse from multi-cycle mid-infrared laser field with chirp gating modulation[J]. Modern physics letters b,2019,33(6):19.
APA	Liu, Hang,Schafer, Henry M.,Feng, R. L. Q.,&Feng, A. Yuanzi.(2019).Generation of water window single attosecond pulse from multi-cycle mid-infrared laser field with chirp gating modulation.Modern physics letters b,33(6),19.
MLA	Liu, Hang,et al."Generation of water window single attosecond pulse from multi-cycle mid-infrared laser field with chirp gating modulation".Modern physics letters b 33.6(2019):19.

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