OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 27, Iss. 15 — Aug. 1, 2002
  • pp: 1312–1314

T-ray computed tomography

Bradley Ferguson, Shaohong Wang, Doug Gray, Derek Abbot, and X.-C. Zhang  »View Author Affiliations

Optics Letters, Vol. 27, Issue 15, pp. 1312-1314 (2002)

View Full Text Article

Acrobat PDF (194 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate a tomographic imaging modality that uses pulsed terahertz (THz) radiation to probe the optical properties of three-dimensional (3D) structures in the far-infrared. This THz-wave computed tomography (T-ray CT) system provides sectional images of objects in a manner analogous to conventional CT techniques such as x-ray CT. The transmitted amplitude and phase of broadband pulses of THz radiation are measured at multiple projection angles. The filtered backprojection algorithm is then used to reconstruct the target object, including both its 3D structure and its frequency-dependent far-infrared optical properties.

© 2002 Optical Society of America

OCIS Codes
(110.6880) Imaging systems : Three-dimensional image acquisition
(300.6270) Spectroscopy : Spectroscopy, far infrared

Bradley Ferguson, Shaohong Wang, Doug Gray, Derek Abbot, and X.-C. Zhang, "T-ray computed tomography," Opt. Lett. 27, 1312-1314 (2002)

Sort:  Author  |  Year  |  Journal  |  Reset


  1. B. B. Huand and M. C. Nuss, Opt. Lett. 20, 1716 (1995).
  2. Q. Wu, T. D. Hewitt, and X.-C. Zhang, Appl. Phys. Lett. 69, 1026 (1996).
  3. Z. Jiang and X.-C. Zhang, Appl. Phys. Lett. 72, 1945 (1998).
  4. D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, and M. Koch, Appl. Phys. B 68, 1085 (1999).
  5. D. M. Mittleman, S. Hunsche, L. Boivin, and M. C. Nuss, Opt. Lett. 22, 904 (1997).
  6. G. T. Herman, Image Reconstruction From Projections—The Fundamentals of Computerized Tomography (Academic, New York, 1980).
  7. A. C. Kak and M. Slaney, Principles of Computerized Tomographic Imaging (Society for Industrial and Applied Mathematics, Philadelphia, Pa., 2001).
  8. B. Ferguson, S. Wang, D. Gray, D. Abbott, and X.-C. Zhang, in Thirteenth International Conference on Ultrafast Phenomena, (Optical Society of America, Washington, D.C., 2002), pp. 450–451.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited