Prof. Guofeng Zhang received a Bachelor of Science from the Physics Department, Shanxi University, in 2006, and a Ph.D. in Science from the State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, in 2011. From 2012 to 2014, he was a postdoctoral student at the Laboratory for Photochemistry and Spectroscopy, KULeuven, Belgium. Since November 2011, he has been a lecturer and an associate professor at the State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University. His research interests mainly focus on the photoluminescence properties of quantum dots; single-dot spectroscopy; excitons and biexciton dynamics; single-molecule spectroscopy and imaging; and TCSPC techniques