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


Conference Paper

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. © 2012 SPIE.

Full Text

Duke Authors

Cited Authors

  • Yang, JM; Chen, R; Favazza, C; Yao, J; Zhou, Q; Shung, KK; Wang, LV

Published Date

  • April 9, 2012

Published In

Volume / Issue

  • 8223 /

International Standard Serial Number (ISSN)

  • 1605-7422

International Standard Book Number 13 (ISBN-13)

  • 9780819488664

Digital Object Identifier (DOI)

  • 10.1117/12.909207

Citation Source

  • Scopus