Article

International Journal of Infrared and Millimeter Waves

, Volume 27, Issue 4, pp 505-515

First online:

Terahertz time-domain attenuated total reflection spectroscopy in water and biological solution

  • Masaya NagaiAffiliated withDepartment of Physics, Graduate School of Sicience, Kyoto University Email author 
  • , Hiroyuki YadaAffiliated withDepartment of Physics, Graduate School of Sicience, Kyoto University
  • , Takashi ArikawaAffiliated withDepartment of Physics, Graduate School of Sicience, Kyoto University
  • , Koichiro TanakaAffiliated withDepartment of Physics, Graduate School of Sicience, Kyoto University

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Abstract

We demonstrate time-domain attenuated total reflection spectroscopy in terahertz frequency region. Geometry of the reflection measurement is well optimized to obtain accurate optical constants of water or aqueous biomolecular system. We determine the dielectric constants of distilled water and sucrose solutions with this technique. This technique will open new aspects in the research field of biological systems in water.