Quantitative measurement of a 3-component mixture based on THz spectra

Zhi Li, Zhaohui Zhang, Xiaoyan Zhao, Haixia Su, Fang Yan, Katherine Dunn, Michael B. Johnston

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Original languageEnglish
Title of host publicationPHOTONICS AND OPTOELECTRONICS MEETINGS (POEM) 2011: LASER AND TERAHERTZ SCIENCE AND TECHNOLOGY
EditorsJ Yao, XC Zhang, D Yan, J Liu
Place of Publication1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
PublisherSPIE
Volume8330
DOIs
Publication statusPublished - 2012

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING

Bibliographical note

4th International Photonics and Optoelectronics Meetings (POEM) - Laser and Terahertz Science and Technology/10th International Conference on Photonics and Imaging in Biology and Medicine (PIBM), Wuhan, PEOPLES R CHINA, NOV 02-05, 2011

Keywords

  • Terahertz time-domain spectroscopy (THz-TDS)
  • Amino acid
  • Quantitative measurement

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