Prof. Yubin Gong obtained his PhD degree from University of Electronic Science and Technology of China (UESTC) in 1998. Since 2001, he has been a professor of UESTC. He was awarded the National Science Fund of China for Distinguished Young Scholars. His research interests include vacuum electron devices, terahertz biophysics, combination of medical and engineering applications, etc. He is the editor-in-chief of Journal of Vacuum Electronic Technologies and a member of the IEEE EDS Vacuum Electronics Technical Committee. He has published more than 500 papers and authorized more than 50 patents. Prof. Shaomeng Wang has been a professor at University of Electronic Science and Technology of China (UESTC) since 2020. He was previously a research fellow at Nanyang Technological University in Singapore. He has published 108 papers. His expertise is in mm terahertz wave devices and applications.