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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13663–13670

Time-reversal and model-based imaging in a THz waveguide

Malakeh A. Musheinesh, Charles J. Divin, Jeffrey A. Fessler, and Theodore B. Norris  »View Author Affiliations

Optics Express, Vol. 17, Issue 16, pp. 13663-13670 (2009)

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We investigate two approaches to improving the resolution of time-reversal based THz imaging systems. First, we show that a substantial improvement in the reconstruction of time-reversed THz fields is achieved by increasing the system’s numerical aperture via a waveguide technique adapted from ultrasound imaging. Second, a model-based reconstruction algorithm is developed as an alternative to time-reversal THz imaging and its performance is demonstrated for cases with and without a waveguide.

© 2009 OSA

OCIS Codes
(100.0100) Image processing : Image processing
(110.0110) Imaging systems : Imaging systems

ToC Category:
Image Processing

Original Manuscript: May 1, 2009
Revised Manuscript: July 16, 2009
Manuscript Accepted: July 17, 2009
Published: July 24, 2009

Malakeh A. Musheinesh, Charles J. Divin, Jeffrey A. Fessler, and Theodore B. Norris, "Time-reversal and model-based imaging in a THz waveguide," Opt. Express 17, 13663-13670 (2009)

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