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dc.contributor.authorZhang, Yu
Wen, Fangfang
Zhen, Yu-Rong
Nordlander, Peter
Halas, Naomi J.
dc.date.accessioned 2013-06-19T17:16:53Z
dc.date.available 2013-06-19T17:16:53Z
dc.date.issued 2013
dc.identifier.citation Zhang, Yu, Wen, Fangfang, Zhen, Yu-Rong, et al.. "Coherent Fano resonances in a plasmonic nanocluster enhance optical four-wave mixing." PNAS Early Edition, (2013) National Academy of Sciences: http://dx.doi.org/10.1073/pnas.1220304110.
dc.identifier.urihttps://hdl.handle.net/1911/71331
dc.description.abstract Plasmonic nanoclusters, an ordered assembly of coupled metallic nanoparticles, support unique spectral features known as Fano resonances due to the coupling between their subradiant and superradiant plasmon modes. Within the Fano resonance, absorption is significantly enhanced, giving rise to highly localized, intense near fields with the potential to enhance nonlinear optical processes. Here, we report a structure supporting the coherent oscillation of two distinct Fano resonances within an individual plasmonic nanocluster. We show how this coherence enhances the optical four-wave mixing process in comparison with other doubleresonant plasmonic clusters that lack this property. A model that explains the observed four-wave mixing features is proposed, which is generally applicable to any third-order process in plasmonic nanostructures. With a larger effective susceptibility χ (3) relative to existing nonlinear optical materials, this coherent double-resonant nanocluster offers a strategy for designing high-performance thirdorder nonlinear optical media.
dc.language.iso eng
dc.publisher National Academy of Sciences
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Coherent Fano resonances in a plasmonic nanocluster enhance optical four-wave mixing
dc.type Journal article
dc.contributor.funder U.S. Department of Defense
dc.contributor.funder Air Force Office of Scientific Research
dc.contributor.funder Office of Naval Research
dc.contributor.funder Welch Foundation
dc.citation.journalTitle PNAS Early Edition
dc.contributor.org Laboratory for Nanophotonics
dc.subject.keywordnanostructured materials
nonlinear optics
phase matching
dc.embargo.terms none
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1073/pnas.1220304110
dc.identifier.pmcid PMC3677425
dc.identifier.pmid 23690571
dc.identifier.grantID National Security Science and Engineering Faculty Fellowship N00244-09-1-0067(U.S. Department of Defense)
dc.identifier.grantID F49620-03-C-0068(Air Force Office of Scientific Research)
dc.identifier.grantID N00014-10-1-0989(Office of Naval Research)
dc.identifier.grantID C-1220(Welch Foundation)
dc.identifier.grantID C-1222(Welch Foundation)
dc.type.publication publisher version


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