Patent ID: 9304082
Filing Date: 2016-04-05
CPC Classification: G01N

Claim Text:
1. An information acquiring apparatus that acquires information on a specimen by applying a terahertz wave to the specimen through a plate-like member, the specimen being provided between a reflecting member and the plate-like member, the reflecting member having a reflecting surface that reflects the terahertz wave, the apparatus comprising: an applying unit configured to apply the terahertz wave to the specimen; a detecting unit configured to detect the terahertz wave reflected from the specimen; and an information acquiring unit configured to acquire the information on the specimen by using at least a first temporal waveform, which is acquired from a result of detection performed by the detecting unit, representing a portion of the terahertz wave that is reflected by an interface between the specimen and the reflecting surface of the reflecting member and a second temporal waveform, which is acquired from the result of detection performed by the detecting unit, representing a portion of the terahertz wave that is reflected by an interface between the plate-like member and the specimen, wherein the information acquiring unit acquires the information on the specimen by using a ratio of a first intensity spectrum obtained from the first temporal waveform to a second intensity spectrum obtained from the second temporal waveform.