PhD in Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, US. Formerly, worked in the field of high power semiconductor lasers with nLight Photonics Corp., Coherent and Corning, US. Professor, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, research in the development of high power semiconductor laser technology and products. President, Xi'an Focuslight Technologies. Former or current Member, Technical Committee of several international conferences. Member, China Recruitment Programme of Global Experts. Author of over 100 papers in journals and conference proceedings. Holds about 30 US and Chinese patents. Recipient of awards and honours in the US and China.