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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2298–2303

Investigation of terahertz surface waves of a metallic nanowire

Xiaoyong He  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2298-2303 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002298


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Abstract

The influence of the nonlocal effect on the optical properties of terahertz waves propagating along a metallic nanowire has been investigated, taking into account the effects of the composed materials, metal wire radii, and radiation frequencies. The results manifest that the nonlocal effect has significant influence on the propagation properties of terahertz nanowire surface waves. The contour results show that as metal wire radii increase, the phase velocity increases, and the attenuation losses decrease. On condition that the metallic nanowire radius is small (tens of nanometers), the attenuation losses of the surface waves decrease with the increasing of frequency. The numerical results are very useful for the development of nanoplasmonic devices in the fields of terahertz spectroscopy, biological sensors, and detectors.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves
(260.3090) Physical optics : Infrared, far
(040.2235) Detectors : Far infrared or terahertz

ToC Category:
Optics at Surfaces

History
Original Manuscript: August 24, 2010
Manuscript Accepted: September 3, 2010
Published: October 14, 2010

Citation
Xiaoyong He, "Investigation of terahertz surface waves of a metallic nanowire," J. Opt. Soc. Am. B 27, 2298-2303 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-11-2298

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