Journal of Biological Physics

, Volume 29, Issue 2–3, pp 247–256 | Cite as

T-ray Imaging and Tomography

  • S. Wang
  • B. Ferguson
  • D. Abbott
  • X.-C. Zhang


We demonstrate two algorithms used forreconstructing the target's structure basedon the diffracted pulses and additionallyshow that a three-dimensional target can bereconstructed using the broadband pulsesand a Fresnel lens by virtue of itsfrequency dependent focal length. Oneadvantage of T-ray imaging is the abilityto measure the far-infrared spectralresponse of the target. To highlight theimportance of this spectral information, wedemonstrate T-ray classification imagingwith different biological samples using asimple classification algorithm and twodimensional T-ray spectroscopic images.

Imaging tomography T-rays 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Mittleman, D.M., Jacobsen, R.H., Baraniuk, R.G. and Nuss, M.C.: Gas Sensing using Terahertz Time-Domain Spectroscopy,Appl. Phys. B 67 (1998), 379-390.Google Scholar
  2. 2.
    Nagel, M., Bolivar, P.H., Brucherseifer, M. and Kurz, H.: Integrated THz Technology for Label-free Genetic Diagnostics,Appl. Phys. Lett. 80 (2002), 154-157.Google Scholar
  3. 3.
    Dahl, C., Genzel, L., Goy, P., Gruner, G., Kotthaus, J.P., Kozlov, G., Nuss, M.C., Orenstein, J. and Volkov, A.: Terahertz Time-domain Spectroscopy, In:Millimeter and Submillimeter Wave Spectroscopy of SolidsSpringer-Verlag, Berlin, Germany, 1998, pp. 7-50.Google Scholar
  4. 4.
    Svanberg, S.:Atomic Molecular Spectroscopy, 2nd edn., Springer, Berlin, 1992.Google Scholar
  5. 5.
    Brucherseifer, M., Nagel, M., Bolivar, P.H., Bosserhoff, A., Buettner, R. and Kurz, H.: Labelfree Probing of the Binding State of DNA by Time-domain Terahertz Sensing,Appl. Phys. Lett. 77 (2000), 4049-4051.Google Scholar
  6. 6.
    Hu, B.B. and Nuss, M.C.: Imaging with Terahertz waves,Opt. Lett.20 (1995), 1716-1719.Google Scholar
  7. 7.
    Hunsche, S., Koch, M., Brener, I. and Nuss, M.C., Terahertz near Field Imaging,Opt. Commun.150 (1998), 22-26.Google Scholar
  8. 8.
    Jiang, Z. and Zhang, X.-C.: Single-Shot Spatiotemporal Terahertz Field Imaging,Opt. Lett.23 (1998), 1114-1117.Google Scholar
  9. 9.
    Mittleman, D.M., Hunsche, S., Bovin, L. and Nuss, M.C.: T-ray Tomography,Opt. Lett. 22 (1997), 904-907.Google Scholar
  10. 10.
    Ferguson, B., Wang, S., Gray, D., Abbott, D. and Zhang, X.-C.: T-ray Computed Tomography,Opt. Lett. 27 (2002), 1312-1315.Google Scholar
  11. ]11.
    Ferguson, B., Wang, S., Gray, D., Abbott, D. and Zhang, X.-C.: Towards Functional 3D THz Imaging,Phys. Med. Biol. 47 (2002), 4735-4742.Google Scholar
  12. 12.
    Goodman, J.W.:Introduction to Fourier OpticsMcGraw-Hill, New York, 1996.Google Scholar
  13. 13.
    Ruffin, A.B., Decker, J., Sanchez-Palencia, L., Hors, L.L., Whitaker, J.F., Norris, T.B. and Rudd, J.V.: Time Reversal and Object Reconstruction with Single-Cycle PulsesOpt. Lett 26 (2001), 681-684.Google Scholar
  14. 14.
    Kak, A.C. and Slaney:Principles of Computerized Tomographic Imaging, Society of Industrial and Applied Mathematics, 2001.Google Scholar
  15. 15.
    Wang, S., Yuan, T., Walsby, E.D., Blaikie, R.J., Durbin, S.M., Cumming, D.R.S., Xu, J. and Zhang, X.-C.: Characterization of T-ray Binary Lenses,Opt. Lett.27 (2002), 1183-1186.Google Scholar
  16. 16.
    Schuermann, J.:Pattern Classification-A Unified View of Statistical and Neural Approaches, John Wiley & Sons, Inc., New York, 1996.Google Scholar
  17. 17.
    Ferguson, B., Wang, S., Gray, D., Abbott, D. and Zhang, X.-C.: Identification of Biological Tissue using Chirped Probe THz Imaging,Microelec. J. 33 (2002), 1043-1051.Google Scholar
  18. 18.
    Helgason, E., Okstad, O.A., Caugant, D.A., Johansen, H.A., Fouet, A., Mock, M., Hegna, I. and Kolsto, A.-B.:Bacillus anthracis, Bacillus cereus, andBacillus thuringiensis-One Species on the Basis of Genetic Evidence,Appl. Env. Microbiol. 66 (2000), 2627-2630.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • S. Wang
    • 1
  • B. Ferguson
    • 1
    • 2
  • D. Abbott
    • 2
  • X.-C. Zhang
    • 1
  1. 1.Center for Subsurface Sensing and Imaging SystemsRensselaer Polytechnic InstituteTroyUSA
  2. 2.Centre for Biomedical Engineering and the Department of Electrical & Electronic EngineeringThe University of AdelaideAustralia

Personalised recommendations