Pros and cons of THz and far-infrared absorption spectroscopy compared to mid-infrared absorption spectroscopy

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

Abstract

For conducting research on dielectrics, various spectroscopic analyses must be conducted. Optical absorption spectroscopy is one of such spectroscopic measures. Fourier-transform mid-infrared (FT-MIR) absorption spectroscopy, which uses MIR photons is very popular and it can detect intramolecular vibrations or vibrations of a relatively small chemical group that is occurring inside a molecule. In comparison, FT-far-infrared (FIR) absorption spectroscopy is suitable for the detection of vibrations of an entire molecule or those of a big chemical group. Furthermore, there is another piece of emerging absorption spectroscopy, called THz absorption spectroscopy. The THz spectroscopy is believed to be able to detect intermodular vibrations. The pros and cons of THz and FIR absorption spectroscopy as a characterization tool for dielectric materials research are discussed.

Original languageEnglish
Title of host publicationProceedings of 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
PublisherInstitute of Electrical Engineers of Japan
Pages221-224
Number of pages4
ISBN (Electronic)9784886864185
Publication statusPublished - 2020 Sep 13
Event2020 International Symposium on Electrical Insulating Materials, ISEIM 2020 - Virtual, Tokyo, Japan
Duration: 2020 Sep 132020 Sep 17

Publication series

NameProceedings of the International Symposium on Electrical Insulating Materials
Volume2020-September

Conference

Conference2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
Country/TerritoryJapan
CityVirtual, Tokyo
Period20/9/1320/9/17

Keywords

  • FT-FIR
  • FT-MIR
  • Opticalabsorptionspectroscopy
  • THz absorption spectroscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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