Single-pixel wavefront sensing via vectorial polarization modulation[Invited]  

作　　者：李武男 曹毓 宁禹 习锋杰 孙全 许晓军 Wunan Li;Yu Cao;Yu Ning;Fengjie Xi;Quan Sun;Xiaojun Xu(College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;School of Mathematics and Physics,Qingdao University of Science&Technology,Qingdao 266061,China;Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China;State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China [2]School of Mathematics and Physics,Qingdao University of Science&Technology,Qingdao 266061,China [3]Nanhu Laser Laboratory,National University of Defense Technology,Changsha 410073,China [4]State Key Laboratory of Pulsed Power Laser Technology,National University of Defense Technology,Changsha 410073,China

出　　处：《Chinese Optics Letters》2023年第9期70-78,共9页中国光学快报（英文版）

基　　金：supported by the Natural Science Foundation of Shandong Province(No.ZR201911090294)。

摘　　要：The Shack–Hartmann wavefront sensor(SHWFS)is commonly used for its high speed and precision in adaptive optics.However,its performance is limited in low light conditions,particularly when observing faint objects in astronomical applications.Instead of a pixelated detector,we present a new approach for wavefront sensing using a single-pixel detector,which is able to code the spatial position of a light spot array into the polarization dimension and decode the polarization state in the polar coordinate.We propose validation experiments with simple and complex wavefront distortions to demonstrate our approach as a promising alternative to traditional SHWFS systems,with potential applications in a wide range of fields.

关 键 词：wavefront sensing single-pixel detector vortex retarder polarization centroid polar coordinate 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]