Photoacoustic technique in biomedical diagnosis has become an active research field because of the advantages of high sensitive and noninvasive, so it has been gained such degree applications.

• 光声技术是一种高灵敏度的无损伤检测技术，把它用来对疾病作早期的诊断已成为一大研究热点，并已得到了一定程度的应用。