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- Yang, Joon Mo
- Medical Device and System Lab.
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A 2.5-mm outer diameter photoacoustic endoscopic mini-probe based on a highly sensitive PMN-PT ultrasonic transducer
- Author(s)
- Yang, Joon Mo, Chen, Ruimin, Favazza, Christopher, Yao, Junjie, Zhou, Qifa, Shung, K. Kirk, Wang, Lihong V.
- Issued Date
- 2012-01-22
- Citation
- Photons Plus Ultrasound: Imaging and Sensing 2012, v.8223
- 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.
- Publisher
- SPIE
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