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Applied Optics

Applied Optics


  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 29 — Oct. 10, 2005
  • pp: 6141–6154

Optimization of plasmon excitation at structured apertures

Evgeny Popov, Michel Nevière, Anne-Laure Fehrembach, and Nicolas Bonod  »View Author Affiliations

Applied Optics, Vol. 44, Issue 29, pp. 6141-6154 (2005)

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Surface plasmon excitation that is due to a single or a structured circular aperture in a flat metallic screen is investigated theoretically and numerically with a view to enhancing the electric field close to the metallic surface. A systematic study of the homogeneous solution of the electromagnetic scattering problem is made with cylindrical coordinates, expanding Maxwell equations on a Fourier–Bessel basis. A perturbation analysis devoted to simple physical analyses of different types of cylindrical nanostructure is developed for the optimization of plasmon excitation by a normally incident linearly polarized monochromatic plane wave. The conclusions drawn from this analysis agree well with the results of rigorous electromagnetic calculations obtained with the differential theory of diffraction in cylindrical coordinates.

© 2005 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: March 22, 2005
Revised Manuscript: May 9, 2005
Manuscript Accepted: May 9, 2005
Published: October 10, 2005

Evgeny Popov, Michel Nevière, Anne-Laure Fehrembach, and Nicolas Bonod, "Optimization of plasmon excitation at structured apertures," Appl. Opt. 44, 6141-6154 (2005)

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