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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 2 — Jan. 19, 2009
  • pp: 544–551

Extraordinary low transmission effects for ultra-thin patterned metal films

D. Reibold, F. Shao, A. Erdmann, and U. Peschel  »View Author Affiliations

Optics Express, Vol. 17, Issue 2, pp. 544-551 (2009)

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Thin metal films show a residual transmission for light in the visible and UV spectral range. This transmission can be strongly reduced by an appropriate sub-wavelength patterning of the metal film. Our investigation is focused on metal films with a thickness much below 100nm, where the transmission response is dominated by the individual posts acting like antennas and cannot be attributed to the excitation of surface plasmons. The almost complete suppression of transmission for ultra-thin metal films depends mainly on the absorber width, but not on the pitch of the pattern. The effect is robust with respect to imperfections of the geometry or larger features imprinted into the sub-wavelength pattern.

© 2009 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Diffraction and Gratings

Original Manuscript: October 15, 2008
Revised Manuscript: November 26, 2008
Manuscript Accepted: November 27, 2008
Published: January 7, 2009

D. Reibold, F. Shao, A. Erdmann, and U. Peschel, "Extraordinary low transmission effects for ultra-thin patterned metal films," Opt. Express 17, 544-551 (2009)

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