Attenuated total reflection spectroscopy of liquids using GaP-Raman terahertz spectrometer

Tadao Tanabe, A. Kenmochi, Yutaka Oyama, K. Suto, J. Nishizawa

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

Abstract

We have measured the spectra of liquid water and solutions using widely frequency-tunable terahertz wave generator based on the resonance of the phonon-polaritons in GaP. Although terahertz wave can hardly be transmitted in a liquid water owing to the large absorption coefficient, using attenuated total reflection techniques, terahertz spectra of methanol and glucose in water can be measured. The internal reflectivity of the methanol and water mixture increases with amount of methanol. The frequency dependence of dispersion in the reflection spectra of solutions is thought to be dispersion in the refractive index. Spectral feature could characterize solutes in water.

Original languageEnglish
Title of host publicationThe Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005
Pages50-51
Number of pages2
Volume1
Publication statusPublished - 2005 Dec 1
Event30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005 - Williamsburg, VA, United States
Duration: 2005 Sep 192005 Sep 23

Other

Other30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005
CountryUnited States
CityWilliamsburg, VA
Period05/9/1905/9/23

ASJC Scopus subject areas

  • Engineering(all)

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    Tanabe, T., Kenmochi, A., Oyama, Y., Suto, K., & Nishizawa, J. (2005). Attenuated total reflection spectroscopy of liquids using GaP-Raman terahertz spectrometer. In The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005 (Vol. 1, pp. 50-51). [1572401]