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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 1 — Jan. 1, 2009
  • pp: 4–6

Extraordinary optical transmission through hole arrays in optically thin metal films

Sergio G. Rodrigo, L. Martín-Moreno, A. Yu. Nikitin, A. V. Kats, I. S. Spevak, and F. J. García-Vidal  »View Author Affiliations

Optics Letters, Vol. 34, Issue 1, pp. 4-6 (2009)

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A theoretical study is presented on the optical transmission through square hole arrays drilled in optically thin films, where transmission may occur through both the holes and the metal layer. It is shown that, as the thickness of the metal film decreases, the coupling of light with short-range surface plasmons redshifts the extraordinary optical transmission peak to longer wavelengths. At the same time, the maximum-to-minimum transmittance ratio is kept high even for metal thicknesses as small as one skin depth.

© 2008 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory
(240.6680) Optics at surfaces : Surface plasmons
(310.6860) Thin films : Thin films, optical properties
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: July 28, 2008
Revised Manuscript: November 6, 2008
Manuscript Accepted: November 11, 2008
Published: December 19, 2008

Sergio G. Rodrigo, L. Martín-Moreno, A. Yu. Nikitin, A. V. Kats, I. S. Spevak, and F. J. García-Vidal, "Extraordinary optical transmission through hole arrays in optically thin metal films," Opt. Lett. 34, 4-6 (2009)

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