• An Ellipsoidal Focused Ultrasound Transducer for Extend-Focus Photoacoustic Microscopy

    1 month ago - By EMBS

    This study propose an ellipsoidal focused ultrasound transducer to solve the problem of sharp attenuation of transducer sensitivity and lateral resolution when transducer away from the focus position. Traditional high numerical aperture spherical focused ultrasound transducers are widely used in photoacoustic microscopy to provide high resolution, but their imaging field of view is limited. We verified the improvement of sound field distribution through simulation and hydrophone experiments. The improvement of the PAM system is proved by the phantom and in vivo experiment, which has great...
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