| 摘要 |
An information acquisition apparatus (100) which acquires information regarding a subject by using terahertz waves includes an irradiating unit (104) which irradiates terahertz waves to the subject, a detecting unit (107) which detects terahertz waves from the subject, a spectrum acquiring unit (123) which acquires a spectrum of an optical characteristic by using a detection result from the detecting unit, and a determining unit (125) which determines a state of a biological tissue based on a result of a comparison between a first spectrum and a second spectrum acquired by the spectrum acquiring unit by using detection results when the biological tissue is used as the subject and when pure water is used as the subject, respectively, and a criterion. The criterion is acquired by using a result of a comparison between a plurality of spectra acquired by measuring a plurality of biological tissues and at least one spectrum acquired by measuring pure water. |
