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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 11 — Jun. 1, 2008
  • pp: 1258–1260

Reflective terahertz imaging of porcine skin burns

Z. D. Taylor, R. S. Singh, M. O. Culjat, J. Y. Suen, W. S. Grundfest, H. Lee, and E. R. Brown  »View Author Affiliations

Optics Letters, Vol. 33, Issue 11, pp. 1258-1260 (2008)

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A reflective pulsed terahertz imaging system based on direct detection was developed and used to obtain high-resolution images of a porcine skin specimen with superficial partial-thickness (second-degree) burns. Images were also obtained of the sample through ten layers of dry medical (cotton) gauze with minimal image degradation. The burned and unburned regions of skin had large differences in terahertz reflectivity, displaying clear delineation [ 20 dB signal-to-noise ratio (SNR) difference signal] between both regions in the images. The terahertz images also exhibited a “halo” surrounding the burn areas that may correlate to the extent of burn injury. The system operated at a center frequency of 500 GHz with 125 GHz of 3 dB bandwidth and used whiskbroom scanning to generate images with a spatial resolution of 1.5 mm . Each pixel was acquired with a 16 ms integration time, resulting in a 40 dB postdetection SNR. The simplicity and high SNR of the reflective terahertz system are promising steps toward real-time terahertz medical imaging.

© 2008 Optical Society of America

OCIS Codes
(160.5140) Materials : Photoconductive materials
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(110.0113) Imaging systems : Imaging through turbid media
(110.6795) Imaging systems : Terahertz imaging
(170.6795) Medical optics and biotechnology : Terahertz imaging

ToC Category:
Imaging Systems

Original Manuscript: January 11, 2008
Revised Manuscript: April 1, 2008
Manuscript Accepted: April 3, 2008
Published: May 30, 2008

Virtual Issues
Vol. 3, Iss. 7 Virtual Journal for Biomedical Optics

Z. D. Taylor, R. S. Singh, M. O. Culjat, J. Y. Suen, W. S. Grundfest, H. Lee, and E. R. Brown, "Reflective terahertz imaging of porcine skin burns," Opt. Lett. 33, 1258-1260 (2008)

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