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Updated: Jan 28, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy
Published on: May 3, 2011
Three-Dimensional Printed Piezoelectric Array for Improving Acoustic Field and Spatial Resolution in Medical
Zeyu Chen1,2, Xuejun Qian3, Xuan Song4
1College of Mechanical & Electrical Engineering, Central South University, Changsha 410083, China. zeyuchen@usc.edu.
Abstract:
Piezoelectric arrays are widely used in non-destructive detecting, medical imaging and therapy. However, limited by traditional manufacturing methods, the array's element is usually designed in simple geometry such as a cube or rectangle, restricting potential applications of the array. This work demonstrates an annular piezoelectric array consisting of different concentric elements printed by Mask-Image-Projection-based Stereolithography (MIP-SL) technology. The printed array displays stable piezoelectric and dielectric properties. Compared to a traditional single element transducer, the ultrasonic transducer with printed array successfully modifies the acoustic beam and significantly improves spatial resolution.
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