I received my B.S. degree from the University of Science and Technical of China in 1998, and the Ph.D. degree in physics from the University of Illinois at Urbana-Champaign (UIUC) in 2002. From 1999 to 2002, I was a research assistant in the Computational Electronics Group at UIUC under the supervision of Prof. Karl Hess, where my work was on the device-level modeling and simulation of Vertical-Cavity Surface-Emitting Lasers (VCSELs) based on a comprehensive laser diode simulator MINIASE. At the beginning of year 2003, I spent three months as a postdoctoral research associate in Prof. Kent D. Choquette\'s Photonic Device Research Group, where I studied the electrical turn-on characteristics and thermal rollover effects of VCSELs. I have been affiliated with Prof. Dutton\'s TCAD group at Stanford as a research associate since March, 2003. My current research interests include the design and simulation of novel photonic crystal based LEDs and laser diodes. I am also interested in the tunneling related effects in Field Effect Transistors (FETs). The simulation platform of my work is a general semiconductor device and process simulator, PROPHET.