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dc.contributor.authorDeacon, Williamen
dc.contributor.authorLombardi, Aen
dc.contributor.authorBenz, Fen
dc.contributor.authorDel Valle-Inclan Redondo, Yagoen
dc.contributor.authorChikkaraddy, Rohiten
dc.contributor.authorde Nijs, Barten
dc.contributor.authorKleemann, Marie-Elenaen
dc.contributor.authorMertens, Jen
dc.contributor.authorBaumberg, Jeremyen
dc.date.accessioned2017-07-11T11:45:02Z
dc.date.available2017-07-11T11:45:02Z
dc.date.issued2017-07-12en
dc.identifier.issn0031-9007
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/265252
dc.description.abstractSingle nanoparticles are shown to develop a localized acoustic resonance, the bouncing mode, when placed on a substrate. If both substrate and nanoparticle are noble metals, plasmonic coupling of the nanoparticle to its image charges in the film induces tight light confinement in the nanogap. This yields ultrastrong “acoustoplasmonic” coupling with a figure of merit 7 orders of magnitude higher than conventional acousto-optic modulators. The plasmons thus act as a local vibrational probe of the contact geometry. A simple analytical mechanical model is found to describe the bouncing mode in terms of the nanoscale structure, allowing transient pump-probe spectroscopy to directly measure the contact area for individual nanoparticles.
dc.description.sponsorshipThis work is supported by UK EPSRC grants EP/G060649/1, EP/L027151/1 and ERC grant LINASS 320503, as well as the Winton Programme for the Physics of Sustainability (FB, YdV-IR, JM), the Dr Manmohan Singh Scholarship from St John’s College (RC).
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.titleInterrogating Nanojunctions Using Ultraconfined Acoustoplasmonic Couplingen
dc.typeArticle
prism.number023901en
prism.publicationDate2017en
prism.publicationNamePhysical Review Lettersen
prism.volume119en
dc.identifier.doi10.17863/CAM.11051
dcterms.dateAccepted2017-06-06en
rioxxterms.versionofrecord10.1103/PhysRevLett.119.023901en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-07-12en
dc.contributor.orcidDel Valle-Inclan Redondo, Yago [0000-0003-0886-7226]
dc.contributor.orcidChikkaraddy, Rohit [0000-0002-3840-4188]
dc.contributor.orcidKleemann, Marie-Elena [0000-0002-6892-7668]
dc.contributor.orcidBaumberg, Jeremy [0000-0002-9606-9488]
dc.identifier.eissn1079-7114
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Research Council (320503)
pubs.funder-project-idEPSRC (EP/L027151/1)
pubs.funder-project-idEPSRC (EP/G060649/1)
pubs.funder-project-idEPSRC (EP/K028510/1)
pubs.funder-project-idEPSRC (EP/H007024/1)
datacite.issupplementedby.doi10.17863/CAM.10924en


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