基于压电单晶的高频超声换能器及其生物医学应用
Single Crystal Based High Frequency Ultrasonic Transducers and Its Biomedical Applications
报 告 人：费春龙 博士
西安电子科技大学 微电子学院
报告时间：2018年8月28日 下午14:00
报告地点：知新楼C座1111报告厅
邀 请 人：王春明 教授
报告内容：High frequency wide band ultrasonic transducers which can produce short pulses and highly focused beam, have been used for many applications, such as high resolution ultrasonic imaging and contactless microparticle manipulation. However, currently the frequency of ultrasonic transducers is limited to below 100 MHz, mainly because of the challenge in precise control of fabrication parameters. Therefore, we developed sensitive broadband lithium niobate (LiNbO3) single element ultrasonic transducers in the range of 100–300 MHz, and presented their applications in high resolution imaging and contactless microparticle manipulation. The promising results may make ultrasonic biomicroscopy (UBM) a promising tool to study fine biological structures and expand the applications in biomedical and biophysical research of single beam acoustic tweezers.
报告人简介：
Chunlong Fei was born in Yixing, Jiangsu Province, China, in 1988. He received his B.S. and Ph.D. degrees in Physics from Wuhan University, Wuhan, China, in 2010 and 2015, respectively. He used to be a joint Ph.D. student of the Department of Biomedical Engineering at University of Southern California, Los Angeles, CA, and School of Physics and Technology at Wuhan University, Wuhan, China, from 2013 to 2015. Currently, he is a lecturer and works as associate director of Integrated Ultrasonic Lab at the school of microelectronics in Xidian University, Xi’an, Shaanxi, China. His current research interests include the development of novel piezoelectric thin/thick film, design and fabrication of high-frequency ultrasonic transducers and systems for physical and medical applications. He has published more than 20 articles in the SCI journals including Nano Energy, ACS Sensors, Applied Physics Letters, Scientific Reports, IEEE Transactions on Biomedical Engineering, IEEE Sensors Journal, and has applied for more than 10 patents.
