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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 17 — Sep. 1, 2006
  • pp: 2643–2645

Nature of subpicosecond terahertz pulse propagation in practical dielectric-filled parallel-plate waveguides

Rajind Mendis  »View Author Affiliations

Optics Letters, Vol. 31, Issue 17, pp. 2643-2645 (2006)

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It is analytically shown that the presence of submicrometer-sized air gaps between the dielectric and metal contact surfaces in a dielectric-filled metallic parallel-plate waveguide can have a dramatic effect on the guided-wave propagation of subpicosecond terahertz pulses. Through the use of metal-evaporated dielectric surfaces to overcome the imperfect contact problem, and a special air–dielectric–air cascaded waveguide geometry to avoid multimode excitation, undistorted subpicosecond terahertz pulse propagation via the single-TEM mode is demonstrated, for what is believed to be the first time, in a silicon-filled PPWG.

© 2006 Optical Society of America

OCIS Codes
(230.7390) Optical devices : Waveguides, planar
(320.5390) Ultrafast optics : Picosecond phenomena
(320.5550) Ultrafast optics : Pulses
(350.4010) Other areas of optics : Microwaves
(350.5500) Other areas of optics : Propagation

ToC Category:
Ultrafast Optics

Original Manuscript: June 2, 2006
Revised Manuscript: June 22, 2006
Manuscript Accepted: June 22, 2006
Published: August 9, 2006

Virtual Issues
Vol. 1, Iss. 10 Virtual Journal for Biomedical Optics

Rajind Mendis, "Nature of subpicosecond terahertz pulse propagation in practical dielectric-filled parallel-plate waveguides," Opt. Lett. 31, 2643-2645 (2006)

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