PROBLEM TO BE SOLVED: To provide a laser device in which consumption of flash lamp can be reduced.SOLUTION: A laser device has a laser medium, temperature adjustment means for adjusting the temperature of the laser medium, excitation means for exciting the laser medium, control means for controlling the temperature adjustment means and excitation means, a probe for receiving an acoustic wave generated when a subject is irradiated with laser light from the laser medium, and processing means for acquiring the characteristic information of the subject by using the acoustic wave. The control means uses a subject information acquisition device which does not operate the excitation means until the temperature of the laser medium falls within a predetermined range.COPYRIGHT: (C)2015,JPO&INPIT【課題】フラッシュランプの消耗を低減可能なレーザ装置を提供する。【解決手段】レーザ媒質と、レーザ媒質の温度を調節する温度調節手段と、レーザ媒質を励起する励起手段と、温度調節手段および励起手段を制御する制御手段と、レーザ媒質から被検体にレーザ光が照射されたときに生じる音響波を受信する探触子と、音響波を用いて被検体の特性情報を取得する処理手段を有し、制御手段は、レーザ媒質の温度が所定の範囲内に入るまでは、励起手段を動作させない被検体情報取得装置を用いる。【選択図】図1
