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Proceedings Paper

Optical characteristics of pesticides measured by terahertz time domain spectroscopy
Author(s): Dong-Kyu Lee; Giyoung Kim; Joo-Hiuk Son
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Paper Abstract

In this study, we measured the optical characteristics of pesticides by terahertz time-domain spectroscopy. Pesticide samples were prepared as pellets that were mixed with polyethylene powder and placed in the center of the path of a terahertz electromagnetic (EM) wave in the spectroscopy system. The absorbance of each sample showed obvious differences in absorption peaks. From this result, we showed that these pesticide products had resonance modes in the terahertz range, and this method can be used to make a sensor that is able to measure low concentrations of pesticides in farm produce.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965516 (1 July 2015); doi: 10.1117/12.2184387
Show Author Affiliations
Dong-Kyu Lee, Univ. of Seoul (Korea, Republic of)
Korea Institute of Science and Technology (Korea, Republic of)
Giyoung Kim, National Academy of Agricultural Science (Korea, Republic of)
Joo-Hiuk Son, Univ. of Seoul (Korea, Republic of)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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