Fluorophore-doped core-multishell spherical plasmonic nanocavities: resonant energy transfer towards a loss compensation

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage6259en_US
dc.citation.issueNumber7en_US
dc.citation.spage6250en_US
dc.citation.volumeNumber6en_US
dc.contributor.authorPeng, B.en_US
dc.contributor.authorZhang, Q.en_US
dc.contributor.authorLiu, X.en_US
dc.contributor.authorJi Y.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorHuan, C. H. A.en_US
dc.contributor.authorSum, T. C.en_US
dc.contributor.authorWiong, Q.en_US
dc.date.accessioned2015-07-28T12:05:04Z
dc.date.available2015-07-28T12:05:04Z
dc.date.issued2012-06-12en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractPlasmonics exhibits the potential to break the diffraction limit and bridge the gap between electronics and photonics by routing and manipulating light at the nanoscale. However, the inherent and strong energy dissipation present in metals, especially in the near-infrared and visible wavelength ranges, significantly hampersthe applications in nanophotonics. Therefore, it is amajor challengetomitigatethe losses. One way to compensate the losses is to incorporate gain media into plasmonics. Here, we experimentally show that the incorporation of gain material into a local surface plasmonic system (Au/silica/silica dye core multishell nanoparticles) leads to a resonant energy transfer from the gain media to the plasmon. The optimized conditions for the largest loss compensation are reported. Both the coupling distance and the spectral overlap arethe key factorsto determinetheresulting energy transfer. Theinterplay of these factors leadsto a non-monotonous photoluminescence dependence as a function of the silica spacer shell thickness. Nonradiativetransferrate is increased by morethan 3 orders of magnitude attheresonant condition, which is key evidence of the strongest coupling occurring between the plasmon and the gain material.en_US
dc.identifier.doi10.1021/nn301716qen_US
dc.identifier.issn1936-0851
dc.identifier.urihttp://hdl.handle.net/11693/13197
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/nn301716qen_US
dc.source.titleACS Nanoen_US
dc.subjectCore multishellen_US
dc.subjectPlasmonic nanocavitiesen_US
dc.subjectLoss compensationen_US
dc.subjectResonant energy transferen_US
dc.subjectNonradiative rateen_US
dc.titleFluorophore-doped core-multishell spherical plasmonic nanocavities: resonant energy transfer towards a loss compensationen_US
dc.typeArticleen_US

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Department of Physics
Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)