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Spatial position scaling on harmonic generation from He atom in bowtie-shaped nanostructure
Liu, Hang1,2; Feng, Liqiang3,4; Li, Wenliang3,4; Li, Yi2
KeywordHigh-order Harmonic Generation Nonhomogeneous Laser Field Bowtie-shaped Nanostructure Spatial Position Of He Atom Single Attosecond Pulse
Source PublicationOPTICS COMMUNICATIONS
2017-09-01
DOI10.1016/j.optcom.2017.04.031
Volume398Pages:31-38
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectOptics
WOS Research AreaOptics
WOS KeywordISOLATED-ATTOSECOND PULSE ; FIELD ; ENHANCEMENT
AbstractSpatial position scaling on the harmonic generation from He in the bowtie-shaped nanostructure has been theoretically investigated. It shows that (i) due to the surface plasmon polaritons in the nanostructure, the laser intensity can be enhanced and presents the nonhomogeneous effect in space. As a result, the extension of the harmonic cutoff can be achieved when He is away from the gap center of the nanostructure. However, due to the limit of the gap size, there is a maximum harmonic cutoff extension for a given nanostructure. (ii) Due to the asymmetric enhancement of the laser intensity in space, the extended harmonics are mainly from E(t) > 0 a.u. and E(t) < 0 a.u. when He is injected into the positive and the negative positions, respectively. Moreover, the intensities and the cutoffs of the extended harmonics can be controlled by changing the pulse duration or by adding the second controlling pulse. Finally, by properly superposing the harmonics from the two-color field, four single attosecond pulses with the durations of 30 as can be produced.
Language英语
WOS IDWOS:000401391200005
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152289
Collection中国科学院大连化学物理研究所
Affiliation1.Liaoning Univ Technol, Sch Chem & Environm Engn, Lab Mol React Dynam, Jinzhou 121001, Peoples R China
2.Liaoning Univ Technol, Lab Modern Phys, Jinzhou 121001, Peoples R China
3.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Xinjiang Inst Engn, Key Lab Univ, Educ Dept Xinjiang Uygur Autonomous Reg New Energ, Urumqi 830091, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hang,Feng, Liqiang,Li, Wenliang,et al. Spatial position scaling on harmonic generation from He atom in bowtie-shaped nanostructure[J]. OPTICS COMMUNICATIONS,2017,398:31-38.
APA Liu, Hang,Feng, Liqiang,Li, Wenliang,&Li, Yi.(2017).Spatial position scaling on harmonic generation from He atom in bowtie-shaped nanostructure.OPTICS COMMUNICATIONS,398,31-38.
MLA Liu, Hang,et al."Spatial position scaling on harmonic generation from He atom in bowtie-shaped nanostructure".OPTICS COMMUNICATIONS 398(2017):31-38.
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