High-harmonic generation by field enhanced femtosecond pulses in metal-sapphire nanostructure

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dc.contributor.authorHan, Seunghwoiko
dc.contributor.authorKim, Hyunwoongko
dc.contributor.authorKim, Yong Wooko
dc.contributor.authorKIM, Young-Jinko
dc.contributor.authorKim, Seungchulko
dc.contributor.authorPark, In-Yongko
dc.contributor.authorKim, Seung-Wooko
dc.date.accessioned2016-11-30T08:32:40Z-
dc.date.available2022-06-02T21:00:52Z-
dc.date.created2016-11-16-
dc.date.created2016-11-16-
dc.date.created2016-11-16-
dc.date.created2016-11-16-
dc.date.issued2016-10-
dc.identifier.citationNATURE COMMUNICATIONS, v.7-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10203/214231-
dc.description.abstractPlasmonic high-harmonic generation (HHG) drew attention as a means of producing coherent extreme ultraviolet (EUV) radiation by taking advantage of field enhancement occurring in metallic nanostructures. Here a metal-sapphire nanostructure is devised to provide a solid tip as the HHG emitter, replacing commonly used gaseous atoms. The fabricated solid tip is made of monocrystalline sapphire surrounded by a gold thin-film layer, and intended to produce EUV harmonics by the inter-and intra-band oscillations of electrons driven by the incident laser. The metal-sapphire nanostructure enhances the incident laser field by means of surface plasmon polaritons, triggering HHG directly from moderate femtosecond pulses of similar to 0.1TW cm(-2) intensities. The measured EUV spectra exhibit odd-order harmonics up to similar to 60nm wavelengths without the plasma atomic lines typically seen when using gaseous atoms as the HHG emitter. This experimental outcome confirms that the plasmonic HHG approach is a promising way to realize coherent EUV sources for nano-scale near-field applications in spectroscopy, microscopy, lithography and atto-second physics-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleHigh-harmonic generation by field enhanced femtosecond pulses in metal-sapphire nanostructure-
dc.typeArticle-
dc.identifier.wosid000385548600002-
dc.identifier.scopusid2-s2.0-84990956911-
dc.type.rimsART-
dc.citation.volume7-
dc.citation.publicationnameNATURE COMMUNICATIONS-
dc.identifier.doi10.1038/ncomms13105-
dc.embargo.terms2017-04-02-
dc.contributor.localauthorKIM, Young-Jin-
dc.contributor.localauthorKim, Seung-Woo-
dc.contributor.nonIdAuthorKim, Seungchul-
dc.contributor.nonIdAuthorPark, In-Yong-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusEXTREME-ULTRAVIOLET-
dc.subject.keywordPlusX-RAYS-
dc.subject.keywordPlusSPECTROSCOPY-
dc.subject.keywordPlusRADIATION-
dc.subject.keywordPlusEMISSION-
dc.subject.keywordPlusSOLIDS-
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ME-Journal Papers(저널논문)
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