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Nuclear signature effect on spatial distribution of molecular harmonic in the presence of spatial inhomogeneous field
Feng, Liqiang1,2; Li, Wenliang2,3
关键词Molecular High-order Harmonic Spectra Nuclear Signature Spatial Distribution Spatial Inhomogeneous Laser Field
刊名LASER PHYSICS
2017
DOI10.1088/1555-6611/27/1/016002
27期:1
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Optics ; Physics, Applied
关键词[WOS]INTENSE LASER FIELDS ; IONIZATION ; GENERATION ; DYNAMICS
英文摘要Spatial distribution of the molecular harmonic spectra from H-2(+) in the presence of inhomogeneous field has been theoretically investigated. It shows that (i) the harmonic intensities from the negative-H nucleus play the dominating role in harmonic emission spectra. (ii) Through the investigations of the nuclear signature effect on the spatial distribution of the molecular harmonic spectra, the differences of the harmonic intensities between the negative-H nucleus and the positive-H nucleus can be enhanced and reduced with the introduction of the higher vibrational state and the heavy nucleus (i.e. D-2(+)), respectively. The time-frequency analyses of the harmonic spectra, the time-dependent wave function and the electron localization have been shown to explain the harmonic spatial distribution and the electron motion. (iii) Due to the plasmon-resonance-enhancement near the metallic nanostructure, the harmonic cutoff can be remarkably enhanced as the spatial position of the inhomogeneous field moving away from the gap center. The ionization probabilities have been shown to explain the harmonic cutoff extension.
语种英语
WOS记录号WOS:000389258700001
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150450
专题中国科学院大连化学物理研究所
作者单位1.Liaoning Univ Technol, Coll Sci, Jinzhou 121000, 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, Key Lab Univ Educ, Dept Xinjiang Uygur Autonomous Reg New Energy Mat, Urumqi 830091, Peoples R China
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Feng, Liqiang,Li, Wenliang. Nuclear signature effect on spatial distribution of molecular harmonic in the presence of spatial inhomogeneous field[J]. LASER PHYSICS,2017,27(1).
APA Feng, Liqiang,&Li, Wenliang.(2017).Nuclear signature effect on spatial distribution of molecular harmonic in the presence of spatial inhomogeneous field.LASER PHYSICS,27(1).
MLA Feng, Liqiang,et al."Nuclear signature effect on spatial distribution of molecular harmonic in the presence of spatial inhomogeneous field".LASER PHYSICS 27.1(2017).
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