PROBLEM TO BE SOLVED: To widen the band of a probe for photoacoustic imaging apparatus.SOLUTION: A probe for photoacoustic imaging apparatus for detecting acoustic waves produced from a subject receiving light irradiation includes: an MUT-based transducer composed of an MUT lower electrode 53, an inorganic based piezoelectric thin-film 54 and an MUT upper electrode 55 for detecting acoustic waves in a predetermined first frequency region and an organic-based transducer composed of an MUT lower electrode 55, an organic based piezoelectric thin-film 56 and a common upper electrode 57 for detecting acoustic waves in a second frequency region which is on a high-frequency side than the first frequency region.COPYRIGHT: (C)2013,JPO&INPIT【課題】光音響画像化装置用プローブを広帯域化する。【解決手段】光の照射を受けた被検体から発せられた音響波を検出する光音響画像化装置用プローブにおいて、MUT下電極53、無機系圧電薄膜54およびMUT上電極55からなり所定の第一の周波数領域にある音響波を検出するMUT系トランスデューサと、MUT上電極55、有機系圧電薄膜56および共通上部電極57からなり第一の周波数領域よりも高周波側にある第二の周波数領域の音響波を検出する有機系トランスデューサとを設ける。【選択図】図3
