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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 21 — Nov. 1, 2009
  • pp: 3457–3459

Low-index terahertz pipe waveguides

Chih-Hsien Lai, Yu-Chun Hsueh, Hung-Wen Chen, Yuh-jing Huang, Hung-chun Chang, and Chi-Kuang Sun  »View Author Affiliations

Optics Letters, Vol. 34, Issue 21, pp. 3457-3459 (2009)

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We propose and demonstrate a simple leaky structure for terahertz (THz) waveguiding. Different from previously reported air-core THz waveguides, in which a high-reflection-coated cladding layer is designed, the proposed structure here is a simple pipe with a large air core and a thin dielectric layer with uniform but low index. Using commercially available Teflon air pipes, we experimentally confirm that THz waves can be successfully guided in the central air core of 3 - m -long pipes with excellent mode qualities, high coupling efficiencies, low attenuation constants, and controllable passband width.

© 2009 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(260.3090) Physical optics : Infrared, far

ToC Category:
Optical Devices

Original Manuscript: September 18, 2009
Revised Manuscript: October 9, 2009
Manuscript Accepted: October 9, 2009
Published: October 30, 2009

Chih-Hsien Lai, Yu-Chun Hsueh, Hung-Wen Chen, Yuh-jing Huang, Hung-chun Chang, and Chi-Kuang Sun, "Low-index terahertz pipe waveguides," Opt. Lett. 34, 3457-3459 (2009)

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