Piezoelectric single crystals for ultrasonic transducers in biomedical applications.
Piezoelectric single crystals, which have excellent piezoelectric properties, have extensively been employed for various sensors and actuators applications. In this paper, the state-of-art in piezoelectric single crystals for ultrasonic transducer applications is reviewed. Firstly, the basic principles and design considerations of piezoelectric ultrasonic transducers will be addressed. Then, the popular piezoelectric single crystals used for ultrasonic transducer applications, including LiNbO3(LN), PMN-PT and PIN-PMN-PT, will be introduced. After describing the preparation and performance of the single crystals, the recent development of both the single-element and array transducers fabricated using the single crystals will be presented. Finally, various biomedical applications including eye imaging, intravascular imaging, blood flow measurement, photoacoustic imaging, and microbeam applications of the single crystal transducers will be discussed.
NIH Resource Center for Medical Ultrasonic Transducer Technology, and Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, United States.
Qifa
Q
Zhou
Department of Electrical Engineering, The Hong Kong Polytechnic University, Hunghom, Hong Kong.
Kwok Ho
KH
Lam
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave., Nanshan, Shenzhen 518055, China.
Hairong
H
Zheng
Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Ave., Nanshan, Shenzhen 518055, China.
Weibao
W
Qiu
NIH Resource Center for Medical Ultrasonic Transducer Technology, and Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, United States.
K Kirk
KK
Shung