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Proceedings Paper

Quantitative measurement of a three-component mixture based on THz spectra
Author(s): Zhi Li; Zhaohui Zhang; Xiaoyan Zhao; Haixia Su; Fang Yan; Katherine Dunn; Michael B. Johnston
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Paper Abstract

Quantitative measurement based on THz absorption spectrum is of great importance in THz applications. Several researchers have worked on it and gained some achievements, but most of them explored pure component or no more than 2-component s samples. In this paper, a mixture sample consisting of Glutamine, Histidine and Threonine is investigated in the frequency range from 0.3 to 2.6 THz. The quantitative measurement principle is the Lambert-Beer's Law which have been accepted in infrared and visible spectra. Our experiments show the validation of the law in THz region. A Least-Mean-Square algorithm is adopted and measurement errors of Glutamine, Histidine and Threonine are 17.60%, 4.44% and 2.59%.

Paper Details

Date Published: 13 March 2012
PDF: 6 pages
Proc. SPIE 8330, Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology, 833004 (13 March 2012); doi: 10.1117/12.919981
Show Author Affiliations
Zhi Li, Univ. of Science and Technology Beijing (China)
Zhaohui Zhang, Univ. of Science and Technology Beijing (China)
Xiaoyan Zhao, Univ. of Science and Technology Beijing (China)
Haixia Su, Univ. of Science and Technology Beijing (China)
Fang Yan, Univ. of Science and Technology Beijing (China)
Katherine Dunn, Univ. of Oxford (United Kingdom)
Michael B. Johnston, Univ. of Oxford (United Kingdom)


Published in SPIE Proceedings Vol. 8330:
Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology
Jianquan Yao; X. C. Zhang; Dapeng Yan; Jinsong Liu, Editor(s)

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