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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 7 — Mar. 31, 2008
  • pp: 4487–4493

Multiple directional beaming effect of metallic subwavelength slit surrounded by periodically corrugated grooves

Yugang Liu, Haofei Shi, Changtao Wang, Chunlei Du, and Xiangang Luo  »View Author Affiliations


Optics Express, Vol. 16, Issue 7, pp. 4487-4493 (2008)
http://dx.doi.org/10.1364/OE.16.004487


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Abstract

It is demonstrated that multiple directional beaming effect can be realized by a metallic subwavelength slit surrounded by finite number of grooves based on mode expansion method. Each of the directional beaming is formed by superimposing two diffraction orders of spoof surface plasmon excited on the two corrugated sides of the slit. This delivers high contrast and considerably uniform energy distribution for the beaming directions.

© 2008 Optical Society of America

OCIS Codes
(230.7380) Optical devices : Waveguides, channeled
(240.0310) Optics at surfaces : Thin films
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: February 4, 2008
Revised Manuscript: March 13, 2008
Manuscript Accepted: March 13, 2008
Published: March 18, 2008

Citation
Yugang Liu, Haofei Shi, Changtao Wang, Chunlei Du, and Xiangang Luo, "Multiple directional beaming effect of metallic subwavelength slit surrounded by periodically corrugated grooves," Opt. Express 16, 4487-4493 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-7-4487


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References

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