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Molecular high-order harmonic spectra and its application to the generation of the isolated attosecond pulse
Feng, Li-Qiang1,2; Liu, Hang3; Li, Wenliang4; Castle, Rich-Samuel1
KeywordAttosecond Pulse Half-cycle Pulse Internuclear Distance r Molecular High-order Harmonic Spectra Spatial Inhomogeneous Effect
Source PublicationJOURNAL OF MOLECULAR MODELING
2016-12-01
DOI10.1007/s00894-016-3162-2
Volume22Issue:12
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology
WOS SubjectBiochemistry & Molecular Biology ; Biophysics ; Chemistry, Multidisciplinary ; Computer Science, Interdisciplinary Applications
WOS Research AreaBiochemistry & Molecular Biology ; Biophysics ; Chemistry ; Computer Science
WOS KeywordBROAD-BAND SUPERCONTINUUM ; FIELD ENHANCEMENT ; NONLINEAR OPTICS ; UNIPOLAR PULSE ; DRIVEN ; GASES
AbstractMolecular high-order harmonic generation (HHG) spectra from H-2(+) and its application to the generation of the isolated attosecond pulses (IAPs) have been numerically investigated. Results show that (i) the 7th harmonic order is enhanced with the nuclei around the equilibrium internuclear, and as the internuclear distance increased, this enhanced harmonic produces a red-shift (even disappearance). Theoretical analyses show that the electronic transition between the ground and the 1st excited states is responsible for the red-shift enhanced harmonic. (ii) The harmonic spectra exhibit several maxima and minima, and a red-shift of these points is predicted as the internuclear distance increased. (iii) By properly choosing the internuclear distance, the harmonic yield is enhanced, and there is only the single quantum path contributing to the harmonic spectra. (iv) Further, by properly adding the half-cycle pulse as well as the spatial inhomogeneous effect, a 375 eV supercontinuum with a pulse enhancement of 3.9 dB and some attosecond X-ray pulses shorter than 60as can be produced.
Language英语
WOS IDWOS:000390004800006
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151842
Collection中国科学院大连化学物理研究所
Affiliation1.Liaoning Univ Technol, Coll Sci, Jinzhou 121000, Peoples R China
2.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Liaoning Univ Technol, Sch Chem & Environm Engn, Jinzhou 121000, Peoples R China
4.Xinjiang Inst Engn, Educ Dept Xinjiang Uygur Autonomous Reg New Energ, Key Lab Univ, Urumqi 830091, Peoples R China
Recommended Citation
GB/T 7714
Feng, Li-Qiang,Liu, Hang,Li, Wenliang,et al. Molecular high-order harmonic spectra and its application to the generation of the isolated attosecond pulse[J]. JOURNAL OF MOLECULAR MODELING,2016,22(12).
APA Feng, Li-Qiang,Liu, Hang,Li, Wenliang,&Castle, Rich-Samuel.(2016).Molecular high-order harmonic spectra and its application to the generation of the isolated attosecond pulse.JOURNAL OF MOLECULAR MODELING,22(12).
MLA Feng, Li-Qiang,et al."Molecular high-order harmonic spectra and its application to the generation of the isolated attosecond pulse".JOURNAL OF MOLECULAR MODELING 22.12(2016).
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