TY - GEN
T1 - Pros and cons of THz and far-infrared absorption spectroscopy compared to mid-infrared absorption spectroscopy
AU - Ohki, Yoshimichi
AU - Seki, Tomofumi
AU - Hirai, Naoshi
N1 - Publisher Copyright:
© 2020 Institute of Electrical Engineers of Japan. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/9/13
Y1 - 2020/9/13
N2 - 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.
AB - 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.
KW - FT-FIR
KW - FT-MIR
KW - Opticalabsorptionspectroscopy
KW - THz absorption spectroscopy
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M3 - Conference contribution
AN - SCOPUS:85099320665
T3 - Proceedings of the International Symposium on Electrical Insulating Materials
SP - 221
EP - 224
BT - Proceedings of 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
PB - Institute of Electrical Engineers of Japan
T2 - 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
Y2 - 13 September 2020 through 17 September 2020
ER -