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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 25 — Dec. 3, 2012
  • pp: 27230–27241

Terahertz deconvolution

Gillian C. Walker, John W. Bowen, Julien Labaune, J-Bianca Jackson, Sillas Hadjiloucas, John Roberts, Gerard Mourou, and Michel Menu  »View Author Affiliations

Optics Express, Vol. 20, Issue 25, pp. 27230-27241 (2012)

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The ability to retrieve information from different layers within a stratified sample using terahertz pulsed reflection imaging and spectroscopy has traditionally been resolution limited by the pulse width available. In this paper, a deconvolution algorithm is presented which circumvents this resolution limit, enabling deep sub-wavelength and sub-pulse width depth resolution. The algorithm is explained through theoretical investigation, and demonstrated by reconstructing signals reflected from boundaries in stratified materials that cannot be resolved directly from the unprocessed time-domain reflection signal. Furthermore, the deconvolution technique has been used to recreate sub-surface images from a stratified sample: imaging the reverse side of a piece of paper.

© 2012 OSA

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.0100) Image processing : Image processing

ToC Category:
Image Processing

Original Manuscript: September 10, 2012
Revised Manuscript: November 8, 2012
Manuscript Accepted: November 9, 2012
Published: November 19, 2012

Gillian C. Walker, John W. Bowen, Julien Labaune, J-Bianca Jackson, Sillas Hadjiloucas, John Roberts, Gerard Mourou, and Michel Menu, "Terahertz deconvolution," Opt. Express 20, 27230-27241 (2012)

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