博士论文答辩：扫描式大口径哈特曼波前传感的研究
日期：2023/02/22 - 2023/02/22
博士论文答辩：扫描式大口径哈特曼波前传感的研究
主讲人：Hongfeng Xu, Ph.D. candidate at UM-SJTU Joint Institute
时间：2023年2月22日（周三）下午4:00
地点：密西根学院龙宾楼403会议室
讲座摘要
Wavefront measurement, owing to its advantages such as non-contact, high precision, and fast speed, has been widely applied in many fields that involve microscopy, lithography, ultra-precision metrology, or other advanced technologies at the micro or sub-micro precision level. However, the Hartmann wavefront sensor currently suffers from the limitations of the signal cross-talk trade-off and limited aperture problems, which impede its application for large wavefront slope detection. This dissertation proposes the scanning-based extended-aperture Hartmann wavefront sensing to address these limitations.
主讲人简介
Hongfeng Xu is a Ph.D. candidate student at the University of Michigan – Shanghai Jiao Tong University Joint Institute, entered in 2019 with a master's degree from the University of Chinese Academy of Sciences, supervised by Prof. Jigang Wu. His current research focuses on the optical wavefront sensing.