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题名: Asymmetric molecular harmonic assisted generation of the attosecond X-ray pulse
作者: Feng, L. Q.1, 2;  Yao, H. B.2
关键词: chirp pulse ;  asymmetric molecule ;  molecular high-order harmonic generation ;  attosecond X-ray pulse
刊名: MOLECULAR PHYSICS
发表日期: 2014-11-02
DOI: 10.1080/00268976.2014.912361
卷: 112, 期:21, 页:2802-2810
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: In this paper, we theoretically investigate the asymmetric molecular high-order harmonic emission and the attosecond X-ray pulse generation when the asymmetric molecular HeH2+ ion is exposed to an intense chirped pulse. It is found that the molecular harmonics are strongly dependent on the internuclear distance R as well as the chirp parameter, showing a smooth and intense harmonic plateau at R = 8.0 a.u. and beta = 0.4. Further, by adding a subharmonic controlling pulse with the optimised conditions, a supercontinuum with a bandwidth of 602eV can be obtained. Finally, by properly superposing the selected harmonics in the supercontinuum region, a series of isolated X-ray pulses with durations of sub-80 as are directly generated.
关键词[WOS]: ELECTRON LOCALIZATION ;  NONLINEAR OPTICS ;  FIELD ;  IONIZATION ;  PLATEAU
语种: 英语
WOS记录号: WOS:000344398700005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143201
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaoning Univ Technol, Coll Sci, Jinzhou, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian, Peoples R China

Recommended Citation:
Feng, L. Q.,Yao, H. B.. Asymmetric molecular harmonic assisted generation of the attosecond X-ray pulse[J]. MOLECULAR PHYSICS,2014,112(21):2802-2810.
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