Dr. Zexin Feng currently focuses on freeform optics, computational optics and inverse problems in optics. He received his Ph.D. in Electronic Science and Technology from Tsinghua University in June, 2012. He stayed as a post-doctor in the field of Optical Engineering at Tsinghua University until April, 2014. Afterwards, heperformed two years of postdoctoral work at College of Optical Sciences, University of Arizona. He is now a tenue track assistant professor at School of Optics and Photonics, Beijing Institute of Technology. Dr. Feng has been named a senior member of the Optical Society of America (OSA) in 2019. He also serves as a professional committee member of Intelligent Interaction in Chinese Association for Artificial Intelligence (CAAI).