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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 25 — Sep. 1, 2005
  • pp: 5198–5201

Component spatial pattern analysis of chemicals by use of two-dimensional electro-optic terahertz imaging

Masatsugu Yamashita, Mamoru Usami, Kazushiro Fukushima, Ryoichi Fukasawa, Chiko Otani, and Kodo Kawase  »View Author Affiliations


Applied Optics, Vol. 44, Issue 25, pp. 5198-5201 (2005)
http://dx.doi.org/10.1364/AO.44.005198


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Abstract

We demonstrate a method of chemical mapping by using the transillumination terahertz (THz) images obtained by two-dimensional electro-optic THz imaging. The images and spectral data were measured between 0.1 and 1.0 THz. An experimental sample consisting of three chemicals was prepared, with one in two concentrations. By introducing the component spatial pattern analysis based on the least-squares method, the chemical composition, spatial distribution, and difference in concentration were clearly determined.

© 2005 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(300.6270) Spectroscopy : Spectroscopy, far infrared
(320.7160) Ultrafast optics : Ultrafast technology

Citation
Masatsugu Yamashita, Mamoru Usami, Kazushiro Fukushima, Ryoichi Fukasawa, Chiko Otani, and Kodo Kawase, "Component spatial pattern analysis of chemicals by use of two-dimensional electro-optic terahertz imaging," Appl. Opt. 44, 5198-5201 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-25-5198

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