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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 1205–1210

Self-collimation phenomena of surface waves in structured perfect electric conductors and metal surfaces

Sang Soon Oh, Sun-Goo Lee, Jae-Eun Kim, and Hae Yong Park  »View Author Affiliations

Optics Express, Vol. 15, Issue 3, pp. 1205-1210 (2007)

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We demonstrate that surface waves in structured perfect electric conductor surfaces can be self-collimated using the finite-difference time-domain method. The self-collimation frequency is obtained from the equi-frequency contours of a perfect electric conductor patterned with an array of square holes. The field patterns of the self-collimated surface wave, obtained using the periodic boundary conditions, show that the surface waves propagate with almost no spreading. We also show that self-collimation phenomena can be observed for the hybrid surface plasmon waves in structured metal surfaces using the finite-difference time-domain method with the Drude model. It is shown that for a structured silver surface the self-collimation can be achieved at the frequencies in the infrared region.

© 2007 Optical Society of America

OCIS Codes
(120.1680) Instrumentation, measurement, and metrology : Collimation
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: November 28, 2006
Revised Manuscript: January 23, 2007
Manuscript Accepted: January 23, 2007
Published: February 5, 2007

Sang Soon Oh, Sun-Goo Lee, Jae-Eun Kim, and Hae Yong Park, "Self-collimation phenomena of surface waves in structured perfect electric conductors and metal surfaces," Opt. Express 15, 1205-1210 (2007)

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