W. J. Fan received the B. Eng degree in applied physics from National University of Defense Technology, Changsha, China, in 1987, the M. S. degree from the Institute of Semiconductors, Chinese Academy of Science, Beijing, China, in 1990, and the Ph. D. degree in electrical engineering from National University of Singapore, in 1997. From 1990 to 1994, he joined the Institute of Semiconductors, Chinese Academy of Science as a Research Assistant. From 1996 to 1999, he joined MBE Technology Pte. Ltd., Singapore as a System Engineer. From 1999 to 2000, he was a Process Engineer at Agilent Technologies, Singapore. From 2000 to 2005, he was an Assistant Professor in Nanyang Technological University. Currently, he is an Associate Professor in Nanyang Technological University. His research interests include semiconductor band structure calculations by using effective mass theory, the first-principles method and empirical pseudopotential method (EPM); Compound semiconductor material growth, characterizations and device fabrications; Si photonics; Spintronics. He has authored and co-authored more than 100 refereed journal papers. According to SCI (Web of Science), the total external citations are over 1200 times, his h index is 19. He was the scientific Committee member, reviewer and optoelectronics session co-chair of Symposium J of ICMAT 2005. He is an reviewer of APPL PHYS LETT and J APPL PHYS. He is an IEEE member in year 2000.