The optical response of nanostructured surfaces and the composite diffracted evanescent wave model

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dc.contributor.author Gay, G.
dc.contributor.author Alloschery, O.
dc.contributor.author Viaris de Lesegno, B.
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Weiner, J.
dc.contributor.author Lezec, H. J.
dc.date.accessioned 2016-07-07T15:12:10Z
dc.date.available 2016-07-07T15:12:10Z
dc.date.issued 2006-03-26
dc.identifier.citation Gay, G., Alloschery, O., de Lesegno, B. V., O'Dwyer, C., Weiner, J. and Lezec, H.J. (2006) 'The optical response of nanostructured surfaces and the composite diffracted evanescent wave model'. Nature Physics, 2(4), pp. 262-267. http://dx.doi.org/10.1038/nphys264 en
dc.identifier.volume 2 en
dc.identifier.issued 4 en
dc.identifier.startpage 262 en
dc.identifier.endpage 267 en
dc.identifier.issn 1745-2473
dc.identifier.uri http://hdl.handle.net/10468/2839
dc.identifier.doi 10.1038/nphys264
dc.description.abstract Investigations of the optical response of subwavelength-structure arrays milled into thin metal films have revealed surprising phenomena, including reports of unexpectedly high transmission of light. Many studies have interpreted the optical coupling to the surface in terms of the resonant excitation of surface plasmon polaritons (SPPs), but other approaches involving composite diffraction of surface evanescent waves (CDEW) have also been proposed. Here we present a series of measurements on very simple one-dimensional subwavelength structures to test the key properties of the surface waves, and compare them to the CDEW and SPP models. We find that the optical response of the silver metal surface proceeds in two steps: a diffractive perturbation in the immediate vicinity (2–3 mu m) of the structure, followed by excitation of a persistent surface wave that propagates over tens of micrometres. The measured wavelength and phase of this persistent wave are significantly shifted from those expected for resonance excitation of a conventional SPP on a pure silver surface. en
dc.description.sponsorship Ministère délégué à l'Enseignement supérieur et à la Recherche, France (ACI-'Nanosciences-Nanotechnologies'); Région Midi-Pyrénées [SFC/CR 02/22], and FASTNet [HPRN-CT-2002-00304]; European Commission (EU Research Training Network); Caltech Kavli Nanoscience Institute, United States; Air Force Office of Scientific Research (AFOSR under Plasmon MURI FA9550-04-1-0434.) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Nature Publishing Group en
dc.rights © 2006 Nature Publishing Group. en
dc.subject Arrays en
dc.subject Optical coupling en
dc.subject Surface plasmon polaritons en
dc.subject SPPs en
dc.subject Surface evanescent waves en
dc.subject Resonance en
dc.title The optical response of nanostructured surfaces and the composite diffracted evanescent wave model en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2012-11-30T09:04:58Z
dc.description.version Submitted Version en
dc.internal.rssid 162343141
dc.contributor.funder Ministère de l'Enseignement Supérieur et de la Recherche, France
dc.contributor.funder European Commission en
dc.contributor.funder Caltech Kavli Nanoscience Institute, United States en
dc.contributor.funder Air Force Office of Scientific Research en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Nature Physics en
dc.internal.copyrightchecked No. !!CORA!! Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


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