Prof. Yiyang Xie graduated from Beijing University of Technology in 2013 with a Ph.D. in Microelectronics and Solid-State Electronics. From 2013 to 2015, he worked as a postdoctoral researcher at the Institute of Semiconductors, Chinese Academy of Sciences and Nanyang Technological University, Singapore. Since September 2015, he has been engaged in research into micro-nanostructure semiconductor optoelectronic devices and their applications at the Key Laboratory of Optoelectronic Technology, Ministry of Education, School of Information, Beijing University of Technology. His research interests mainly focus on artificial superstructure semiconductor optoelectronic devices and principle research, narrow spectral linewidth surface emitting lasers for atomic frequency standards, metasurface laser technology, large-scale VCSELs coupling arrays, and beam scanning chips.