PROBLEM TO BE SOLVED: To provide a photoacoustic microscope that is able to achieve high speed scanning and able to improve detection accuracy over a wide scanning range.SOLUTION: A photoacoustic microscope comprises an objective lens 12 that emits excitation light L to a sample S a light scanning part 11 that scans the sample S by deflecting the excitation light L an acoustic lens 14 that converts the wave surface of a photoacoustic wave U generated from the sample S by the emission of the excitation light L a photoacoustic wave detection part 15 that detects a photoacoustic wave U from the photoacoustic lens 14 a drive part 21 that displaces at least either the photoacoustic lens 14 or photoacoustic wave detection part 15 and a control part 20 that controls the drive part 21 in synchronization with the scan of the excitation light U by the optical scanning part 11 such that the photoacoustic wave U is made incident on the photoacoustic wave detection part 15 in perpendicular.COPYRIGHT: (C)2014,JPO&INPIT【課題】高速走査が可能で、かつ広い走査範囲に亘って検出精度を向上できる光音響顕微鏡を提供する。【解決手段】励起光Lを標本Sに照射させる対物レンズ12と、励起光Lを偏向して標本Sを走査させる光走査部11と、励起光Lの照射により標本Sから発生される光音響波Uの波面を変換する音響レンズ14と、音響レンズ14からの光音響波Uを検出する光音響波検出部15と、音響レンズ14及び光音響波検出部15の少なくとも一方を変位させる駆動部21と、光走査部11による励起光Uの走査に同期して、光音響波検出部15に光音響波Uが垂直に入射するように駆動部21を制御する制御部20と、を備える。【選択図】図1
