Riken Corporation

S.i Seiko Co., Ltd.

Tomofumi Ikari

Kodo Kawase

Hiromasa Ito

Hiroaki Minamide

Yuuki Watanabe

Yuki Watanabe

A method and an apparatus for generating a terahertz wave, wherein one end faceof a non-linear optical crystalis positioned approximately orthogonally to a direction of generation of a terahertz wave, pump lightand idler lightare totally reflected at an approximately same pointon the end face, and the generated terahertz waveis emitted roughly vertically to the end face.

Method and apparatus for generating terahertz wave

A method includes a spectroscopic measurement step of pre-measuring a spectrum [S] of tera-hertz wave absorbencies of a target component for a plurality of frequencies ranging about from 1 THz to 3 THz, and an object spectroscopic step of irradiating an object with tera-hertz waves of the plurality of frequencies to measure absorbencies I of the object. Presence and absence of the target component in the object is determined on the basis of the spectrum [S] of the absorbancy S and the spectrum [I] of the absorbancy I of the object.

Method and apparatus for inspecting target by tera-hertz wave spectrometry

An apparatus for detecting materials includes a database for storing detecting spectra of detecting materials, and a tera-hertz wave applying unit for applying tera-hertz waves having a plurality of different frequencies around a boundary between a light wave frequency and a radio wave frequency, to a predetermined position of an inspecting object. The apparatus includes an output wave receiving unit for receiving an output wave that is the tera-hertz wave having been applied to the inspecting object, and a determining unit for determining whether or not the output wave includes the detecting spectrum.

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Wako, Japan

Tomofumi Ikari