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Observation of highly efficient second-harmonic generation at the nanoscale driven by bound states in the continuum

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dc.contributor.authorKoshelev, Kirill
dc.contributor.authorKruk, Sergey
dc.contributor.authorMelik-Gaykazyan, Elizaveta
dc.contributor.authorChoi, Jae-Hyuck
dc.contributor.authorBogdanov, Andrey
dc.contributor.authorPark, Hong-Gyu
dc.contributor.authorKivshar, Yuri
dc.coverage.spatialSan Francisco, California, United States
dc.date.accessioned2023-10-04T22:13:38Z
dc.date.available2023-10-04T22:13:38Z
dc.date.created1-6 February 2020
dc.date.issued2020
dc.date.updated2022-08-07T08:16:59Z
dc.description.abstractRecent developments in the physics of Mie-resonant high-index dielectric nanostructures suggested a promising pathway to improve efficiencies of the nonlinear light conversion beyond the limits imposed by plasmonics. Here, we employ the concept of bound states in the continuum to experimentally demonstrate a sharp enhancement of the second-harmonic generation efficiency at localized states formed via destructive interference of two leaky modes. For an AlGaAs subwavelength disk with optimized parameters, pumped with a structured light and placed on an engineered multilayered substrate, we observe the record-high conversion efficiency compared to the previous demonstrations with isolated subwavelength resonators.en_AU
dc.description.sponsorshipThe authors acknowledge a financial support from the Australian Research Council (ARC), the Russian Foundation for Basic Research (18-32-20205), and the National Research Foundation of Korea (NRF) under grant no. 2018R1A3A3000666 funded by the Korean Government (MSIT). K.K. and A.B. acknowledge support from the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS“.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0277-786Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/301240
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/27454..."The Published Version can be archived in a Non-Commercial Institutional Repository" from SHERPA/RoMEO site (as at 05/10/2023). Copyright 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. Kirill Koshelev, Sergey Kruk, Elizaveta Melik-Gaykazyan, Jae-Hyuck Choi, Andrey Bogdanov, Hong-Gyu Park, Yuri Kivshar, "Observation of highly efficient second-harmonic generation at the nanoscale driven by bound states in the continuum," Proc. SPIE 11290, High Contrast Metastructures IX, 112900C (26 February 2020); doi: 10.1117/12.2544231en_AU
dc.publisherSPIEen_AU
dc.relation.ispartofseriesSPIE OPTO 2020en_AU
dc.rights© 2020 SPIEen_AU
dc.sourceProceedings of SPIE : Complex Light and Optical Forces XIVen_AU
dc.titleObservation of highly efficient second-harmonic generation at the nanoscale driven by bound states in the continuumen_AU
dc.typeConference paperen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.lastpage8en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationKoshelev, Kirill, College of Science, ANUen_AU
local.contributor.affiliationKruk, Sergey, College of Science, ANUen_AU
local.contributor.affiliationMelik-Gaykazyan, Elizaveta, College of Science, ANUen_AU
local.contributor.affiliationChoi, Jae-Hyuck, Korea Universityen_AU
local.contributor.affiliationBogdanov, Andrey, ITMO Universityen_AU
local.contributor.affiliationPark, Hong-Gyu, Korea Universityen_AU
local.contributor.affiliationKivshar, Yuri, College of Science, ANUen_AU
local.contributor.authoruidKoshelev, Kirill, u1040346en_AU
local.contributor.authoruidKruk, Sergey, u5039401en_AU
local.contributor.authoruidMelik-Gaykazyan, Elizaveta, u1033404en_AU
local.contributor.authoruidKivshar, Yuri, u9307695en_AU
local.description.notesImported from ARIESen_AU
local.description.refereedYes
local.identifier.absfor510203 - Nonlinear optics and spectroscopyen_AU
local.identifier.absseo280120 - Expanding knowledge in the physical sciencesen_AU
local.identifier.ariespublicationa383154xPUB16998en_AU
local.identifier.doi10.1117/12.2544231en_AU
local.identifier.essn1996-756Xen_AU
local.identifier.scopusID2-s2.0-85084114385
local.publisher.urlhttps://www.spiedigitallibrary.org/en_AU
local.type.statusPublished Versionen_AU

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