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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 2 — Jan. 15, 2012
  • pp: 271–273

Wideband plasmonic beam steering in metal gratings

Domenico de Ceglia, Maria Antonietta Vincenti, and Michael Scalora  »View Author Affiliations

Optics Letters, Vol. 37, Issue 2, pp. 271-273 (2012)

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We demonstrate controllable light deflection in thick metal gratings with periodic subwavelength slits filled with an active material. Under specific illumination conditions, the grating becomes nearly transparent and acts as a uniform optical phased-array antenna where the phase of the radiating elements is controlled by modifying the index of refraction of the material that fills each slit. The beam-steering operational regime occurs in a wide wavelength band, and it is relatively insensitive to the input angle.

© 2012 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(240.6680) Optics at surfaces : Surface plasmons
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: September 15, 2011
Revised Manuscript: November 18, 2011
Manuscript Accepted: November 22, 2011
Published: January 13, 2012

Domenico de Ceglia, Maria Antonietta Vincenti, and Michael Scalora, "Wideband plasmonic beam steering in metal gratings," Opt. Lett. 37, 271-273 (2012)

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