Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces

dc.contributor.authorAigner, Andreascs
dc.contributor.authorLigmajer, Filipcs
dc.contributor.authorRovenská, Katarínacs
dc.contributor.authorHolobrádek, Jakubcs
dc.contributor.authorIdesová, Beátacs
dc.contributor.authorMaier, Stefan A.cs
dc.contributor.authorTittl, Andreascs
dc.contributor.authorMenezes, Leonardo de S.cs
dc.coverage.issue35cs
dc.coverage.volume24cs
dc.date.accessioned2024-10-14T09:03:56Z
dc.date.available2024-10-14T09:03:56Z
dc.date.issued2024-08-27cs
dc.description.abstractActive functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties.en
dc.formattextcs
dc.format.extent10742-10749cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNANO LETTERS. 2024, vol. 24, issue 35, p. 10742-10749.en
dc.identifier.doi10.1021/acs.nanolett.4c01703cs
dc.identifier.issn1530-6984cs
dc.identifier.orcid0000-0003-0346-4110cs
dc.identifier.orcid0000-0003-4632-2067cs
dc.identifier.other189716cs
dc.identifier.researcheridJ-3881-2014cs
dc.identifier.urihttps://hdl.handle.net/11012/249515
dc.language.isoencs
dc.publisherAMER CHEMICAL SOCcs
dc.relation.ispartofNANO LETTERScs
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acs.nanolett.4c01703cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1530-6984/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectActive metasurfacesen
dc.subjectbound states in thecontinuumen
dc.subjectvanadium dioxideen
dc.subjectloss tunabilityen
dc.subjectnear-fieldtunabilityen
dc.titleEngineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfacesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/MSM/EH/EH22_008/0004572cs
sync.item.dbidVAV-189716en
sync.item.dbtypeVAVen
sync.item.insts2024.10.14 11:03:56en
sync.item.modts2024.10.07 15:32:06en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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