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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 10 — Oct. 1, 2010
  • pp: 1947–1956

Temporal coupled-mode theory for resonant apertures

Lieven Verslegers, Zongfu Yu, Peter B. Catrysse, and Shanhui Fan  »View Author Affiliations


JOSA B, Vol. 27, Issue 10, pp. 1947-1956 (2010)
http://dx.doi.org/10.1364/JOSAB.27.001947


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Abstract

We develop the coupled-mode theory for nanoscale resonant apertures. We show that the maximum transmission and absorption cross sections for subwavelength resonant apertures are only related to the wavelength of the incident light and the directivity of the aperture’s radiation pattern. A general relation between the transmission cross section and the directivity is proven from the coupled-mode theory. As a specific example, we apply the theory to a nanoslit aperture in a metallic film and obtain excellent agreement with direct numerical simulations.

© 2010 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(260.5740) Physical optics : Resonance
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: July 7, 2010
Manuscript Accepted: July 24, 2010
Published: September 9, 2010

Citation
Lieven Verslegers, Zongfu Yu, Peter B. Catrysse, and Shanhui Fan, "Temporal coupled-mode theory for resonant apertures," J. Opt. Soc. Am. B 27, 1947-1956 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-10-1947

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