摘要
Orbital angular momentum(OAM)is a fundamental physical characteristic to describe laser fields with a spiral phase structure.Vortex beams carrying OAMs have attracted more and more attention in recent years.However,the wavefront of OAM light would be destroyed when it passes through scattering media.Here,based on the feedback-based wavefront shaping method,we reconstitute OAM wavefronts behind strongly scattering media.The intensity of light with desired OAM states is enhanced to 150 times.This study provides a method to manipulate OAMs of scattered light and is of great significance for OAM optical communication and imaging to overcome complex environment interference.
作者
李兰婷
郑远林
刘海港
陈险峰
Lanting Li;Yuanlin Zheng;Haigang Liu;Xianfeng Chen(State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Research Center for Quantum Sciences,Shanghai 201315,China;Jinan Institute of Quantum Technology,Jinan 250101,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China)
基金
supported in part by the National Natural Science Foundation of China(NSFC)(Nos.11734011,62022058,12074252,and 12004245)
the National Key R&D Program of China(Nos.2017YFA0303701 and 2018YFA0306301)
the Shanghai Municipal Science and Technology Major Project(No.2019SHZDZX01)
the Shanghai Rising-Star Program(No.20QA1405400)
the Shandong Quancheng Scholarship(No.00242019024)。
