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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3706–3708

Plasmonic nanoloop array antenna

Akram Ahmadi and Hossein Mosallaei  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3706-3708 (2010)
http://dx.doi.org/10.1364/OL.35.003706


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Abstract

In this Letter, we create an optical nanoantenna array composed of parasitic plasmonic loops that can enhance radiation characteristics and direct the optical energy successfully. Three metallic loops inspired by the concept of the Yagi-Uda antenna are optimized around the region where they feature high scattering performance to control the radiation beam. The loop geometry, when compared to the dipole configuration, has the benefit of using the available aperture in an effective way to provide higher directivity. The angular emission of the nanoloop array antenna is highly directive, and a directivity of 8.2 dB for upward radiation is established.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(350.4600) Other areas of optics : Optical engineering
(350.5610) Other areas of optics : Radiation

ToC Category:
Optics at Surfaces

History
Original Manuscript: July 8, 2010
Revised Manuscript: September 15, 2010
Manuscript Accepted: October 5, 2010
Published: October 29, 2010

Citation
Akram Ahmadi and Hossein Mosallaei, "Plasmonic nanoloop array antenna," Opt. Lett. 35, 3706-3708 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3706


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