TERAHERTZ WAVE SPECTROMETER AND TERAHERTZ WAVE SPECTROSCOPIC MEASUREMENT METHOD

摘要

To provide a terahertz wave spectrometer with which it is possible to suppress the deterioration of measurement accuracy in a configuration where a measurement auxiliary member for placing a measurement object on is provided separately from a prism.SOLUTION: A measurement auxiliary member 60 is placed on a placement face 30c of a prism 30. A measurement object S is placed on the top face of the measurement auxiliary member 60. The measurement auxiliary member 60 causes a terahertz wave inputted to the inside from an underside to be totally reflected on the top face and outputs the totally reflected terahertz wave from the underside. The main pulse of a terahertz wave not multiple-reflected in the inside in any optical element existing on the optical path of the terahertz wave and totally reflected on the top face of the measurement auxiliary member 60 and the noise pulse of a terahertz wave multiple-reflected in the inside in any optical element existing on the optical path of the terahertz wave and reflected on an interface between the prism 30 and the measurement auxiliary member 60 are separated in time from each other when correlation detection by a terahertz wave detection element 40 is done.SELECTED DRAWING: Figure 1