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Surface Wave Generation and Propagation on Metallic Subwavelength Structures Measured by Far-Field Interferometry

Gay, G. and Alloschery, O. and Viaris de Lesegno, B. and Weiner, J. and Lezec, H. J. (2006) Surface Wave Generation and Propagation on Metallic Subwavelength Structures Measured by Far-Field Interferometry. Physical Review Letters, 96 (21). Art. No. 213901. ISSN 0031-9007.

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Transmission spectra of metallic films or membranes perforated by arrays of subwavelength slits or holes have been widely interpreted as resonance absorption by surface plasmon polaritons. Alternative interpretations involving evanescent waves diffracted on the surface have also been proposed. These two approaches lead to divergent predictions for some surface wave properties. Using far-field interferometry, we have carried out a series of measurements on elementary one-dimensional subwavelength structures with the aim of testing key properties of the surface waves and comparing them to predictions of these two points of view.

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Additional Information:©2006 The American Physical Society (Received 20 February 2006; published 1 June 2006) Support from the Ministère délégué a l’Enseignement supérieur et a 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, the Caltech Kavli Nanoscience Institute, and the AFOSR under Plasmon MURI FA9550-04-1-0434 is gratefully acknowledged, as are discussions with P. Lalanne, R. Mathevet, A. Scherer, and H. Atwater.
Subject Keywords:metallic thin films; light interferometry; surface plasmons; polaritons; diffraction gratings
Issue or Number:21
Record Number:CaltechAUTHORS:GAYprl06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3590
Deposited By: Archive Administrator
Deposited On:18 Jun 2006
Last Modified:02 Oct 2019 23:04

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