Dr. Chunlong Fei is an associate professor at Xidian University, China. Educational background: 2010.09–2015.12, Wuhan University, China (Ph.D.); 2013.11–2015.10, University of Southern California, USA (joint doctoral degree); 2006.09–2010.06, Wuhan University, China (B.S.). Work experience: 2016.01–present, Xidian University, China (associate professor, Ph.D. supervisor) Current research interests: acoustic metamaterials. Membership in professional societies and awards received: Dr. Fei is a member of the standing committee in the Ultrasound Transducers and Materials Committee of the ultrasound branch of the China Association of Medical Equipment.