Xiangchao Zhang is currently a professor at Fudan University, China. He is a Senior Member of SPIE, and a member of OSA, ASPE, IEEE, and Shanghai Laser Society, and a trustee of Precision Machinery Sub-Society of China Instrument and Control Society. He graduated from the University of Science and Technology of China in 2005, and received his PhD degree at the University of Huddersfield, UK, in 2009. In 2011, he joined Department of Optical Science and Engineering, Fudan University, China. Dr Zhang’s research interests include precision optical measurement, surface metrology and precision optics polishing. He has achieved a series of important results on deflectometric measurement, freeform surface characterization, multi-scale analysis, digital holographic microscopy, etc., and published more than 100 papers. He has led several research grants, including the National Natural Science Foundation of China, Shanghai Natural Science Foundation, Science Challenging Program, National Key Research and Development Program of China, etc. He won a Second Prize of Science and Technology Development of Ministry of Education of China, a golden award of the Geneva Invention Exhibition, and a best paper prize in Met & Props 2011. He is a youth editor of Advances in Manufacturing, a peer reviewer of more than 30 international journals, and a project reviewer of NSFC of China and EPSRC of the UK.