Dec. 2015~Current: Full professor, Vice Director of Department of Optoelectronic Information and Engineering, College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications Sep. 2011~Dec2014: Associate professor, Vice Director of Department of Optoelectronic Information and Engineering, College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications. Aug. 2013~Aug. 2014: Visiting Scholar, Department of Chemistry, Indiana University-Bloomington. Supervisor: Prof. Gary M Hieftje Sep. 2011~Dec 2014: Associate professor College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications. Jul.2009~Sep.2011: Assistant professor College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications. Jul.2004 ~ Jul.2009: PhD, Anhui Institute of Optics and Fine Mechanics (AIOFM), Chinese Academy of Science (CAS), P.R. CHINA