Ph.D. in Physical Electronics and Optoelectronics, Beijing Institute of Technology; Ph.D. in Electrical Engineering, Tsinghua University; Lecturer and Associate Professor in Electronic Engineering, Tsinghua University. As the project leader (or technical leader), he has undertaken a number of major and key projects of National 863 and Natural Science Foundation. National 863 Program15th anniversary advanced individual, winner of China Instrument Award. He has published more than 90 academic papers and applied for 4 invention patents.