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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 24 — Nov. 27, 2006
  • pp: 11823–11832

On the phase of plasmons excited by slits in a metal film

O.T.A. Janssen, H.P. Urbach, and G.W. ’t Hooft  »View Author Affiliations


Optics Express, Vol. 14, Issue 24, pp. 11823-11832 (2006)
http://dx.doi.org/10.1364/OE.14.011823


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Abstract

The excitation of surface plasmons by subwavelength slits in metal films is studied using a rigorous diffraction model. It is shown that the plasmon is launched by a slit in antiphase with the incident magnetic field. This is true independent of slit width and of the metal used. Using this phase information, maxima and minima in transmission are explained in the case of two and more slits.

© 2006 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
(350.5030) Other areas of optics : Phase

ToC Category:
Optics at Surfaces

History
Original Manuscript: July 7, 2006
Revised Manuscript: September 6, 2006
Manuscript Accepted: September 8, 2006
Published: November 27, 2006

Citation
O. T. A. Janssen, H. P. Urbach, and G. W. 't Hooft, "On the phase of plasmons excited by slits in a metal film," Opt. Express 14, 11823-11832 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-24-11823


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References

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