Optical characteristics of pesticides measured by terahertz time domain spectroscopy

Dong Kyu Lee, Giyoung Kim, Joo Hiuk Son

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

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.

Original languageEnglish
Title of host publicationFifth Asia-Pacific Optical Sensors Conference, APOS 2015
EditorsByoungho Lee, Yunjiang Rao, Sang Bae Lee
PublisherSPIE
ISBN (Electronic)9781628418651
DOIs
StatePublished - 2015
Event5th Asia-Pacific Optical Sensors Conference, APOS 2015 - Jeju, Korea, Republic of
Duration: 20 May 201522 May 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9655
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference5th Asia-Pacific Optical Sensors Conference, APOS 2015
Country/TerritoryKorea, Republic of
CityJeju
Period20/05/1522/05/15

Keywords

  • pesticides sensing
  • spectroscopy
  • terahertz
  • terahertz time-domain spectroscopy

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