APPARATUS USING ELECTROMAGNETIC WAVE OF TERAHERTZ WAVE BAND

PROBLEM TO BE SOLVED: To solve a conventional problem of low spatial resolution and difficulty in improving imaging accuracy due to a noise by in-vivo multiple reflection in microwaves used as a method for detecting an abnormal tissue of an analyte more safely than x rays.SOLUTION: An apparatus includes: an irradiation unit for irradiating an analyte with a terahertz wave; a reception unit for receiving a reflecting wave of the irradiated terahertz wave from the analyte; and a calculation unit for calculating propagation time from the irradiation unit to the reception unit on the basis of a signal received at the reception unit and for calculating a location of an abnormal tissue existing in the analyte on the basis of the propagation time.