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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 23 — Nov. 10, 2008
  • pp: 19091–19096

Surface wave splitter based on metallic gratings with sub-wavelength aperture

Humeyra Caglayan and Ekmel Ozbay  »View Author Affiliations


Optics Express, Vol. 16, Issue 23, pp. 19091-19096 (2008)
http://dx.doi.org/10.1364/OE.16.019091


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Abstract

We investigated the splitting of surface electromagnetic waves trapped at the output surface of a one-dimensional metallic grating structure. The output gratings of the structure asymmetrically such that the output surfaces at the different sides of the subwavelength aperture can support surface waves at different frequencies. The transmission amplitude as measured at the left side is 1,000 times of that at the right side at 16 GHz. At 24 GHz, the transmission measured at the right side is 20 times that of the left side of the structure. Therefore, surface waves are guided into the different sides of the aperture at different frequencies via metallic gratings. The experimental results are in agreement with the theoretical results.

© 2008 Optical Society of America

OCIS Codes
(240.0240) Optics at surfaces : Optics at surfaces
(240.6690) Optics at surfaces : Surface waves

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 12, 2008
Revised Manuscript: October 31, 2008
Manuscript Accepted: November 3, 2008
Published: November 4, 2008

Citation
Humeyra Caglayan and Ekmel Ozbay, "Surface wave splitter based on metallic gratings with sub-wavelength aperture," Opt. Express 16, 19091-19096 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-23-19091


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References

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