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

G. Gay, O. Alloschery, B. Viaris de Lesegno, J. Weiner, and H. J. Lezec
Phys. Rev. Lett. 96, 213901 – Published 1 June 2006

Abstract

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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  • Received 20 February 2006

DOI:https://doi.org/10.1103/PhysRevLett.96.213901

©2006 American Physical Society

Authors & Affiliations

G. Gay, O. Alloschery, B. Viaris de Lesegno*, and J. Weiner

  • IRSAMC/LCAR, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse, France

H. J. Lezec

  • Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, Pasadena, California 91125 USA and Centre National de la Recherche Scientifique, 3 rue Michel-Ange, 75794 Paris Cedex 16, France

  • *Present address: Laboratoire Aimé Cotton, Campus d’Orsay, 91405 Orsay, France.

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Issue

Vol. 96, Iss. 21 — 2 June 2006

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