| 摘要 |
Provided is a technique capable of changing resolution or an imaging area during imaging, in an acoustic wave acquiring apparatus using a Fabry-Perot probe. An acoustic wave acquiring apparatus includes a measurement light source emitting measurement light, a probe having a Fabry-Perot interferometer including a first mirror, upon the side of which the measurement light is incident, and a second mirror, upon the side of which an elastic wave from an object is incident, an optical system changing a beam diameter of the measurement light, a controller controlling change in the beam diameter performed by the optical system, a photosensor measuring a light intensity of the measurement light reflected on the Fabry-Perot interferometer, and a processor acquiring intensity of the elastic wave on the basis of change in the light intensity measured by the photosensor due to incidence of the elastic wave. |
