An optically transparent focused P(VDF-TrFE) transducer for Photoacoustic Microscopy (PAM) Conference Paper uri icon


  • This paper reports a new optically transparent focused P(VDF-TrFE) (poly(vinylidene fluoride-co-trifluoroethylene)) transducer for photoacoustic microscopy (PAM), which is fabricated by a new process based on pre-cutting and direct-lamination. Compared with the previous fabrication process, it is simpler, and makes it possible to achieve a high numerical aperture (NA) without stretching the (brittle) piezoelectric film. For demonstration, a prototype transducer has been fabricated with a 10-m-thick 70/30 P(VDF-TrFE) film laminated onto a plano-concave glass lens with an NA of 0.64. Experimental characterization shows that the transducer has an optical transmittance of 88.6% (@ 532 nm), an acoustic center frequency and -3 dB bandwidth of 24 MHz and 29 MHz, respectively. Using the new optically transparent focused P(VDF-TrFE) transducer, an optical-resolution PAM (OR-PAM) imaging setup has been built and imaging experiments have been conducted on different targets. The experimental results show the optically transparent focused P(VDF-TrFE) transducer could be useful for the development of new PAM systems for different imaging applications.

name of conference

  • Photons Plus Ultrasound: Imaging and Sensing 2023

published proceedings

  • Progress in Biomedical Optics and Imaging

author list (cited authors)

  • Fang, C., Zhao, Z., Fang, J., & Zou, J.

citation count

  • 0

complete list of authors

  • Fang, Cheng||Zhao, Zijie||Fang, Jie||Zou, Jun

editor list (cited editors)

  • Oraevsky, A. A., & Wang, L. V.

publication date

  • March 2023