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

Gay, G. and Alloschery, O. and De Lesegno, B. Viaris and O'Dwyer, C. and 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. ISSN 1745-2473. http://resolver.caltech.edu/CaltechAUTHORS:20150408-152625067

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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 (2–3µ 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1038/nphys264DOIArticle
http://www.nature.com/nphys/journal/v2/n4/full/nphys264.htmlPublisherArticle
http://rdcu.be/cvpQPublisherFree ReadCube access
Additional Information:© 2006 Nature Publishing Group. Received 23 September 2005; accepted 14 February 2006; published 26 March 2006. Support from the Ministère délégué à l’Enseignement supérieur et à la Recherche under the programme ACI-‘Nanosciences-Nanotechnologies’, the Région Midi-Pyrénées [SFC/CR 02/22], and FASTNet [HPRN-CT-2002-00304]EU Research Training Network, is gratefully acknowledged, as is support from the Caltech Kavli Nanoscience Institute and from the AFOSR under Plasmon MURI FA9550-04-1-0434. Discussions and technical assistance from P. Lalanne, R. Mathevet, F. Kalkum, G. Derose, A. Scherer, D. Pacifici, J. Dionne, R.Walters and H. Atwater are also gratefully acknowledged.
Group:Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
Ministère délégué à l’Enseignement supérieur et à la Recherche under the programme ACI-‘Nanosciences-Nanotechnologies’UNSPECIFIED
Région Midi-PyrénéesSFC/CR 02/22
FASTNet [HPRN-CT-2002-00304] EU Research Training NetworkUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-04-1-0434
Subject Keywords:Optical physics, Electronics, photonics and device physics, Nanotechnology
Record Number:CaltechAUTHORS:20150408-152625067
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150408-152625067
Official Citation:The optical response of nanostructured surfaces and the composite diffracted evanescent wave model - pp262 - 267 G. Gay, O. Alloschery, B. Viaris de Lesegno, C. O'Dwyer, J. Weiner and H. J. Lezec doi:10.1038/nphys264
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56502
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:09 Apr 2015 19:28
Last Modified:09 Apr 2015 19:28

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