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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 25 — Dec. 13, 2004
  • pp: 6397–6402

Terahertz surface plasmon polariton coupling on metallic gratings

John F. O’Hara, R. D. Averitt, and A. J. Taylor  »View Author Affiliations

Optics Express, Vol. 12, Issue 25, pp. 6397-6402 (2004)

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Terahertz time-domain spectroscopy is used to study the nature and efficiency of coupling between surface plasmon polaritons and free-space terahertz radiation by metallic gratings made from brass rods and a grooved aluminum plate. Reflection and transmission mode measurements indicate very rapid coupling and decoupling with >70% efficiency after accounting for scattering. Results indicate a good match to theoretical coupling frequencies within the accuracy of the experimental setup.

© 2004 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Research Papers

Original Manuscript: December 3, 2004
Revised Manuscript: December 9, 2004
Published: December 13, 2004

John O'Hara, R. Averitt, and A. Taylor, "Terahertz surface plasmon polariton coupling on metallic gratings," Opt. Express 12, 6397-6402 (2004)

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