Acoustic wave detector and acoustic wave measurement apparatus

摘要

An acoustic wave detector includes: a transducer; and a light reflecting member which is positioned between the transducer and a subject surface that is irradiated with the light, and which reflects scattered light on the subject surface. The light reflecting member includes a first reflecting surface and a second reflecting surface positioned closer to the transducer than the first reflecting surface, and a distance between the first reflecting surface and the second reflecting surface is an odd multiple of a half wavelength of a predetermined wavelength included in an acoustic wave generated from the light reflecting member by the scattered light.

主权项

1. An acoustic wave detector for detecting an acoustic wave generated by light emitted onto a subject, comprising:
a transducer; and a light reflecting member which is positioned between said transducer and a subject surface that is irradiated with the light, and which reflects scattered light on the subject surface, wherein said light reflecting member includes a first reflecting surface and a second reflecting surface positioned closer to said transducer than said first reflecting surface, and said first reflecting surface and said second reflecting surface are disposed such that a distance between said first reflecting surface and said second reflecting surface is a predetermined length equal to an odd multiple of a half wavelength of a predetermined wavelength, said predetermined wavelength being within a detection bandwidth of said transducer and included in an acoustic wave generated from said light reflecting member by the scattered light.