Reconstitution of optical orbital angular momentum through strongly scattering media via feedback-based wavefront shaping method

被引：10
作者：
Li, Lanting [1 ]
Zheng, Yuanlin [1 ,2 ]
Liu, Haigang [1 ]
Chen, Xianfeng [1 ,2 ,3 ,4 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
[2] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China
[3] Jinan Inst Quantum Technol, Jinan 250101, Peoples R China
[4] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2021年 / 19卷 / 10期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
orbital angular momentum; scattering; wavefront shaping; GAUSSIAN VORTEX BEAMS; COHERENT BACKSCATTERING; FOCUSING LIGHT; TRANSMISSION; PROPAGATION; SPACE;
D O I：
10.3788/COL202119.100101
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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.
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页数：6
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