Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorShi, L.en_US
dc.contributor.authorHakala, Ten_US
dc.contributor.authorRekola, H.T.en_US
dc.contributor.authorMartikainen, J.-P.en_US
dc.contributor.authorMoerland, R.J.en_US
dc.contributor.authorTörmä, Päivien_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorQuantum Dynamicsen
dc.date.accessioned2016-09-02T09:35:03Z
dc.date.issued2014-04-18en_US
dc.description.abstractWe study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the strong coupling regime is investigated by systematically varying the coupling strength between the localized DiD excitons and the collective, delocalized modes of the nanoparticle array known as surface lattice resonances. A gradual evolution of coherence from the weak to the strong coupling regime is observed, with the strong coupling features clearly visible in interference fringes. A high degree of spatial coherence is demonstrated in the strong coupling regime, even when the mode is very excitonlike (80%), in contrast to the purely localized nature of molecular excitons. We show that coherence appears in proportion to the weight of the plasmonic component of the mode throughout the weak-to-strong coupling crossover, providing evidence for the hybrid nature of the normal modes.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.extent1-5
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationShi, L, Hakala, T, Rekola, H T, Martikainen, J-P, Moerland, R J & Törmä, P 2014, ' Spatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimes ', Physical Review Letters, vol. 112, no. 15, 153002, pp. 1-5 . https://doi.org/10.1103/PhysRevLett.112.153002en
dc.identifier.doi10.1103/PhysRevLett.112.153002en_US
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.otherPURE UUID: 71f2fe7b-52f9-43e0-803f-b090d3dd3fd1en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/71f2fe7b-52f9-43e0-803f-b090d3dd3fd1en_US
dc.identifier.otherPURE LINK: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.153002en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/2475258/PhysRevLett.112.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/21792
dc.identifier.urnURN:NBN:fi:aalto-201609023261
dc.language.isoenen
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/340748/EU//CODEen_US
dc.relation.ispartofseriesPHYSICAL REVIEW LETTERSen
dc.relation.ispartofseriesVolume 112, issue 15en
dc.rightsopenAccessen
dc.subject.keywordplasmonicsen_US
dc.subject.keywordspatial coherenceen_US
dc.subject.keywordstrong couplingen_US
dc.subject.keywordsurface lattice resonancesen_US
dc.titleSpatial Coherence Properties of Organic Molecules Coupled to Plasmonic Surface Lattice Resonances in the Weak and Strong Coupling Regimesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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