Structural and optical properties of monocrystalline and polycrystalline gold plasmonic nanorods

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dc.contributor.authorKejík, Lukášcs
dc.contributor.authorHorák, Michalcs
dc.contributor.authorŠikola, Tomášcs
dc.contributor.authorKřápek, Vlastimilcs
dc.coverage.issue23cs
dc.coverage.volume28cs
dc.date.issued2020-11-03cs
dc.description.abstractThe quality of lithographically prepared structures is intimately related to the properties of the metal film from which they are fabricated. Here we compare two kinds of thin gold films on a silicon nitride membrane: a conventional polycrystalline thin film deposited by magnetron sputtering and monocrystalline gold microplates that were chemically synthesised directly on the membrane’s surface for the first time. Both pristine metals were used to fabricate plasmonic nanorods using focused ion beam lithography. The structural and optical properties of the nanorods were characterized by analytical transmission electron microscopy including electron energy loss spectroscopy. The dimensions of the nanorods in both substrates reproduced well the designed size of 240 × 80 nm 2 with the deviations up to 20nm in both length and width. The shape reproducibility was considerably improved among monocrystalline nanorods fabricated from the same microplate. Interestingly, monocrystalline nanorods featured inclined boundaries while the boundaries of the polycrystalline nanorods were upright. Q factors and peak loss probabilities of the modes in both structures are within the experimental uncertainty identical. We demonstrate that the optical response of the plasmonic nanorods is not deteriorated when the polycrystalline metal is used instead of the monocrystalline metal.en
dc.formattextcs
dc.format.extent34960-34972cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationOPTICS EXPRESS. 2020, vol. 28, issue 23, p. 34960-34972.en
dc.identifier.doi10.1364/OE.409428cs
dc.identifier.issn1094-4087cs
dc.identifier.orcid0000-0001-6275-0171cs
dc.identifier.orcid0000-0001-6503-8294cs
dc.identifier.orcid0000-0003-4217-2276cs
dc.identifier.orcid0000-0002-4047-8653cs
dc.identifier.other165933cs
dc.identifier.researcheridAAX-7836-2020cs
dc.identifier.researcheridR-2546-2017cs
dc.identifier.researcheridA-6917-2013cs
dc.identifier.scopus57200608539cs
dc.identifier.urihttp://hdl.handle.net/11012/195638
dc.language.isoencs
dc.publisherThe Optical Societycs
dc.relation.ispartofOPTICS EXPRESScs
dc.relation.urihttps://doi.org/10.1364/OE.409428cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1094-4087/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectplasmonicsen
dc.subjectnanoantennasen
dc.subjectgolden
dc.subjectmonocrystallineen
dc.titleStructural and optical properties of monocrystalline and polycrystalline gold plasmonic nanorodsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-165933en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:48:11en
sync.item.modts2025.01.17 15:24:25en
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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Ústav fyzikálního inženýrství
Příprava a charakterizace nanostruktur