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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 7 — Mar. 26, 2012
  • pp: 7706–7715

Coaxial waveguide mode reconstruction and analysis with THz digital holography

Xinke Wang, Wei Xiong, Wenfeng Sun, and Yan Zhang  »View Author Affiliations


Optics Express, Vol. 20, Issue 7, pp. 7706-7715 (2012)
http://dx.doi.org/10.1364/OE.20.007706


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Abstract

Terahertz (THz) digital holography is employed to investigate the properties of waveguides. By using a THz digital holographic imaging system, the propagation modes of a metallic coaxial waveguide are measured and the mode patterns are restored with the inverse Fresnel diffraction algorithm. The experimental results show that the THz propagation mode inside the waveguide is a combination of four modes TE11, TE12, TM11, and TM12, which are in good agreement with the simulation results. In this work, THz digital holography presents its strong potential as a platform for waveguide mode charactering. The experimental findings provide a valuable reference for the design of THz waveguides.

© 2012 OSA

OCIS Codes
(230.7370) Optical devices : Waveguides
(090.1995) Holography : Digital holography
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

History
Original Manuscript: January 10, 2012
Revised Manuscript: February 24, 2012
Manuscript Accepted: February 28, 2012
Published: March 20, 2012

Citation
Xinke Wang, Wei Xiong, Wenfeng Sun, and Yan Zhang, "Coaxial waveguide mode reconstruction and analysis with THz digital holography," Opt. Express 20, 7706-7715 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-7-7706


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