A 2.5-mm outer diameter photoacoustic endoscopic mini-probe based on a highly sensitive PMN-PT ultrasonic transducer

Joon-Mo Yang; Ruimin Chen; Christopher Favazza; Junjie Yao; Qifa Zhou; K. Kirk Shung; Lihong V. Wang

doi:10.1117/12.909207

23 February 2012 A 2.5-mm outer diameter photoacoustic endoscopic mini-probe based on a highly sensitive PMN-PT ultrasonic transducer

Joon-Mo Yang, Ruimin Chen, Christopher Favazza, Junjie Yao, Qifa Zhou, K. Kirk Shung, Lihong V. Wang

Author Affiliations +

Proceedings Volume 8223, Photons Plus Ultrasound: Imaging and Sensing 2012; 82233M (2012) https://doi.org/10.1117/12.909207
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

We have developed a 2.5-mm outer diameter photoacoustic endoscopic mini-probe to use in the instrument channel (typically 2.8 or 3.7 mm in diameter) of standard video endoscopes. To achieve adequate signal sensitivity, we fabricated a focused ultrasonic transducer using a highly-sensitive PMN-PT piezoelectric material. We quantified the PMN-PT transducer's operating parameters and validated the mini-probe's endoscopic imaging capability through an ex vivo imaging experiment on a rat colon.

Citation Download Citation

Joon-Mo Yang, Ruimin Chen, Christopher Favazza, Junjie Yao, Qifa Zhou, K. Kirk Shung, and Lihong V. Wang "A 2.5-mm outer diameter photoacoustic endoscopic mini-probe based on a highly sensitive PMN-PT ultrasonic transducer", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82233M (23 February 2012); https://doi.org/10.1117/12.909207

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