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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • 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)
http://dx.doi.org/10.1364/OL.37.000271


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Abstract

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

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

Citation
Domenico de Ceglia, Maria Antonietta Vincenti, and Michael Scalora, "Wideband plasmonic beam steering in metal gratings," Opt. Lett. 37, 271-273 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-2-271

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Supplementary Material


» Media 1: MOV (264 KB)     
» Media 2: MOV (693 KB)     

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