OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 20 — Oct. 6, 2003
  • pp: 2549–2554

Non-destructive terahertz imaging of illicit drugs using spectral fingerprints

Kodo Kawase, Yuichi Ogawa, Yuuki Watanabe, and Hiroyuki Inoue  »View Author Affiliations


Optics Express, Vol. 11, Issue 20, pp. 2549-2554 (2003)
http://dx.doi.org/10.1364/OE.11.002549


View Full Text Article

Acrobat PDF (661 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The absence of non-destructive inspection techniques for illicit drugs hidden in mail envelopes has resulted in such drugs being smuggled across international borders freely. We have developed a novel basic technology for terahertz imaging, which allows detection and identification of drugs concealed in envelopes, by introducing the component spatial pattern analysis. The spatial distributions of the targets are obtained from terahertz multispectral transillumination images, using absorption spectra measured with a tunable terahertz-wave source. The samples we used were methamphetamine and MDMA, two of the most widely consumed illegal drugs in Japan, and aspirin as a reference.

© 2003 Optical Society of America

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(300.6270) Spectroscopy : Spectroscopy, far infrared

ToC Category:
Research Papers

History
Original Manuscript: August 15, 2003
Revised Manuscript: September 18, 2003
Published: October 6, 2003

Citation
Kodo Kawase, Yuichi Ogawa, Yuuki Watanabe, and Hiroyuki Inoue, "Non-destructive terahertz imaging of illicit drugs using spectral fingerprints," Opt. Express 11, 2549-2554 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-20-2549


Sort:  Journal  |  Reset

References

  1. D. M. Mittleman, G. Gupta, B. Neelamani, R. G. Baraniuk, J. V. Rudd, and M. Koch, �??Recent advantages in terahertz imaging,�?? Appl. Phys. B 68, 1085-1094 (1999). [CrossRef]
  2. B. Ferguson and X. C. Zhang, �??Materials for terahertz science and technology,�?? Nature Materials 1, 26-33 (2002). [CrossRef]
  3. P. H. Siegel, �??Terahertz technology,�?? IEEE T. Microw. Theory Tech. 50, 910-928 (2002).
  4. J. E. Parmeter, D. W. Murray, D. W. Hannum, Guide for the selection of drug detectors for law enforcement applications, NIJ Guide 601-00, (National Institute of Justice, Washington, 2000).
  5. A. Fitzgerald, and J. Chamberlain, �??An introduction to medical imaging with coherent terahertz frequency radiation,�?? Phys. Med. Biol. 47, R67-R84 (2002).
  6. T. Löffler, T. Bauer, K. Siebert, H. G. Roskos, A. Fitzgerald and S. Czasch, �??Terahertz dark-field imaging of biomedical tissue,�?? Opt. Express 9, 616-621 (2001), <a href="http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-12-616">http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-12-616</a>
  7. S. Wang, B. Ferguson, C. Mannella, D. Gray, D. Abbott and X.C Zhang, �??Powder Detection Using THz Imaging,�?? in OSA Trends in Optics and Photonics (TOPS) vol. 73, Conference on Lasers and Electro-Optics, OSA Technical Digest, Postconference Edition (Optical Society of America, Washington DC, 2002), pp. 132-133.
  8. Y. Watanabe, K. Kawase, T. Ikari, H. Ito, Y. Ishikawa and H. Minamide, �??Component spatial pattern analysis of chemicals using terahertz spectroscopic imaging,�?? Appl. Phys. Lett., 83, 800-802 (2003). [CrossRef]
  9. K. Kawase, J. Shikata and H. Ito, �??Terahertz wave parametric source,�?? J. Phys. D: Appl. Phys. 35, R1-R14 (2002).
  10. S. Kawata, K. Sasaki, and S. Minami, �??Component analysis of spatial and spectral patterns in multispectral images. I. Basis,�?? J. Opt. Soc. Am. A 4, 2101-2106 (1987).

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