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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 18241–18248

Terahertz surface wave propagation and focusing on conical metal wires

Huawei Liang, Shuangchen Ruan, and Min Zhang  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 18241-18248 (2008)

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A theory for treating terahertz (THz) surface wave propagation and focusing on conical metal wire waveguides is presented. According to the theory, the surface wave propagation and focusing on the conical copper wire waveguide is investigated by the numerical calculation, and the results show the theory agrees with experimental measurement result obtained by Ji et al. The theory presented provides a basis for describing surface wave propagation and focusing on conical metal wire waveguides and, importantly, the theory suggests that a simple conical metal wire can be used for subwavelength energy concentration and superfocusing.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Optics at Surfaces

Original Manuscript: September 23, 2008
Revised Manuscript: October 20, 2008
Manuscript Accepted: October 21, 2008
Published: October 22, 2008

Huawei Liang, Shuangchen Ruan, and Min Zhang, "Terahertz surface wave propagation and focusing on conical metal wires," Opt. Express 16, 18241-18248 (2008)

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