Squeezing Photons into a Point-Like Space

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dc.contributor.authorKim, Myung-Kiko
dc.contributor.authorSim, Hongchulko
dc.contributor.authorYoon, Seung Juko
dc.contributor.authorGong, Su-Hyunko
dc.contributor.authorAhn, Chi Wonko
dc.contributor.authorCho, Yong-Hoonko
dc.contributor.authorLee, Yong-Heeko
dc.date.accessioned2015-07-22T05:14:29Z-
dc.date.available2015-07-22T05:14:29Z-
dc.date.created2015-06-25-
dc.date.created2015-06-25-
dc.date.created2015-06-25-
dc.date.issued2015-06-
dc.identifier.citationNANO LETTERS, v.15, no.6, pp.4102 - 4107-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10203/200066-
dc.description.abstractConfining photons in the smallest possible volume has long been an objective of the nanophotonics community. In this Letter, we propose and demonstrate a three-dimensional (3D) gap-plasmon antenna that enables extreme photon squeezing in a 3D fashion with a modal volume of 1.3 x 10(-7) lambda(3) (similar to 4 x 10 x 10 nm(3)) and an intensity enhancement of 400 000. A three-dimensionally tapered 4 nm air-gap is formed at the center of a complementary nanodiabolo structure by ion-milling 100 nm-thick gold film along all three dimensions using proximal milling techniques. From a 4 nm-gap antenna, a nonlinear second-harmonic signal more than 27 000-times stronger than that from a 100 nm-gap antenna is observed. In addition, scanning cathodoluminescence images confirm unambiguous photon confinement in a resolution-limited area 20 x 20 nm(2) on top of the nano gap.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.titleSqueezing Photons into a Point-Like Space-
dc.typeArticle-
dc.identifier.wosid000356316900067-
dc.identifier.scopusid2-s2.0-84935909680-
dc.type.rimsART-
dc.citation.volume15-
dc.citation.issue6-
dc.citation.beginningpage4102-
dc.citation.endingpage4107-
dc.citation.publicationnameNANO LETTERS-
dc.identifier.doi10.1021/acs.nanolett.5b01204-
dc.contributor.localauthorCho, Yong-Hoon-
dc.contributor.localauthorLee, Yong-Hee-
dc.type.journalArticleArticle-
dc.subject.keywordPlusOPTICAL ANTENNAS-
dc.subject.keywordPlusHARMONIC-GENERATION-
dc.subject.keywordPlusFIELD ENHANCEMENT-
dc.subject.keywordPlusNANOMETER-SCALE-
dc.subject.keywordPlusGAP PLASMONS-
dc.subject.keywordPlusNANOANTENNAS-
dc.subject.keywordPlusTRANSMISSION-
dc.subject.keywordPlusEMISSION-
dc.subject.keywordPlusEMITTERS-
dc.subject.keywordPlusLASERS-
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