OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 28 — Oct. 1, 2003
  • pp: 5744–5748

Spatial Pattern Separation of Chemicals and Frequency-Independent Components by Terahertz Spectroscopic Imaging

Yuuki Watanabe, Kodo Kawase, Tomofumi Ikari, Hiromasa Ito, Youichi Ishikawa, and Hiroaki Minamide  »View Author Affiliations


Applied Optics, Vol. 42, Issue 28, pp. 5744-5748 (2003)
http://dx.doi.org/10.1364/AO.42.005744


View Full Text Article

Acrobat PDF (370 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We separated the component spatial patterns of frequency-dependent absorption in chemicals and frequency-independent components such as plastic, paper, and measurement noise in terahertz (THz) spectroscopic images, using known spectral curves. Our measurement system, which uses a widely tunable coherent THz-wave parametric oscillator source, can image at a specific frequency in the range 1–2 THz. The component patterns of chemicals can easily be extracted by use of the frequency-independent components. This method could be successfully used for nondestructive inspection for the detection of illegal drugs and devices of bioterrorism concealed, e.g., inside mail and packages.

© 2003 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(260.3090) Physical optics : Infrared, far
(300.6270) Spectroscopy : Spectroscopy, far infrared

Citation
Yuuki Watanabe, Kodo Kawase, Tomofumi Ikari, Hiromasa Ito, Youichi Ishikawa, and Hiroaki Minamide, "Spatial Pattern Separation of Chemicals and Frequency-Independent Components by Terahertz Spectroscopic Imaging," Appl. Opt. 42, 5744-5748 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-28-5744

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited