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题名: Nuclear signature effect on spatial distribution of molecular harmonic in the presence of spatial inhomogeneous field
作者: 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
发表日期: 2017
DOI: 10.1088/1555-6611/27/1/016002
卷: 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
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.
关键词[WOS]: INTENSE LASER FIELDS ;  IONIZATION ;  GENERATION ;  DYNAMICS
语种: 英语
WOS记录号: WOS:000389258700001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150450
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 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

Recommended Citation:
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).
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