Abstract
An incorporate ultrasonic coupling device for extended focal zone focused photoacoustic imaging was designed. Phantom experimental imaging was carried out. The results show that, with the incorporate ultrasonic coupling device,accurate imaging position of absorber in the sample can be achieved. And it is worth mentioning that without the large water tank,the photoacoustic imaging experimental system become simple. Our work has a potential application in the noninvasive photoacoustic imaging of bio-tissue.
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