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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 11 — May. 24, 2010
  • pp: 11132–11137

Slow light in the GaAs-rod-loaded metallic waveguide for terahertz wave

Wei Wang, Jinlong He, Xiangjun Li, and Zhi Hong  »View Author Affiliations


Optics Express, Vol. 18, Issue 11, pp. 11132-11137 (2010)
http://dx.doi.org/10.1364/OE.18.011132


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Abstract

The modes in a circular metallic waveguide loaded with a high permittivity dielectric rod may possess similar dispersion relations to the modes in the left-handed metamaterial (LHM) waveguide. Therefore such dielectric-loaded metallic waveguide may also support slow light with parameters properly selected. The slow light in the GaAs-rod-loaded metallic waveguide is numerically studied. The results show that the wavelength of slow light varies with the parameters of the waveguide. A linearly tapered waveguide and other realizable simple structures are proposed accordingly to realize the “trapped rainbow” phenomena. Moreover, the practical lossy tapered waveguide is also investigated in the terahertz region. It is shown that the slow light with low loss can be achieved in a realistic GaAs-loaded metallic waveguide.

© 2010 OSA

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7370) Optical devices : Waveguides
(160.3918) Materials : Metamaterials

ToC Category:
Slow and Fast Light

History
Original Manuscript: April 16, 2010
Revised Manuscript: May 6, 2010
Manuscript Accepted: May 7, 2010
Published: May 11, 2010

Citation
Wei Wang, Jinlong He, Xiangjun Li, and Zhi Hong, "Slow light in the GaAs-rod-loaded metallic waveguide for terahertz wave," Opt. Express 18, 11132-11137 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-11-11132


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