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学科主题物理化学
High-order harmonic generation spectra and isolated attosecond pulse generation with a two-color time delayed pulse
Feng, Liqiang1; Chu, Tianshu1,2; Chu TS(楚天舒)
关键词High-order Harmonic Generation Isolated Attosecond Pulse Delay Time Effect Two-color Held
刊名JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
2012-03-01
DOI10.1016/j.elspec.2011.11.004
185期:1-2页:39-46
收录类别SCI
文章类型Article
部门归属11
项目归属1101
产权排名1,1
WOS标题词Science & Technology ; Technology
类目[WOS]Spectroscopy
研究领域[WOS]Spectroscopy
关键词[WOS]RARE-GASES ; LASER ; FIELD ; INTENSITY ; IONIZATION ; DEPENDENCE ; PHYSICS ; REGIME ; PHASE ; ATOMS
英文摘要In this paper, we theoretically investigate the delay time effect on the high-order harmonic generation (HHG) when a model Ne atom is exposed to a two-color time delayed pulse, consisting of a 5fs/800 nm fundamental field and a 20fs/2000 nm controlling field. It shows that the HHG spectra are strongly sensitive to the delay time between the two laser fields, in particular, for the zero carrier-envelope phase (CEP) phi case (corresponding to the 800 nm fundamental field), the maximum cutoff energy has been achieved at zero delay time. However, with the introduction of the CEP (phi = 180), the delay effect on HHG is changed, exhibiting a 'U' structure harmonic emission from -1T to 1 T. In addition, the combinations of different controlling pulse frequencies and pulse intensities have also been considered, showing the similar results as the original controlling field case, but with some characteristics. Finally, by properly superposing the optimal harmonic spectrum, an isolated 45as pulse is generated without phase compensation. (C) 2011 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000301684300008
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/118094
专题中国科学院大连化学物理研究所
通讯作者Chu TS(楚天舒)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Qingdao Univ, Inst Computat Sci & Engn, Lab New Fiber Mat & Modern Text, Growing Base State Key Lab, Qingdao 266071, Peoples R China
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Feng, Liqiang,Chu, Tianshu,Chu TS. High-order harmonic generation spectra and isolated attosecond pulse generation with a two-color time delayed pulse[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,2012,185(1-2):39-46.
APA Feng, Liqiang,Chu, Tianshu,&楚天舒.(2012).High-order harmonic generation spectra and isolated attosecond pulse generation with a two-color time delayed pulse.JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,185(1-2),39-46.
MLA Feng, Liqiang,et al."High-order harmonic generation spectra and isolated attosecond pulse generation with a two-color time delayed pulse".JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 185.1-2(2012):39-46.
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