摘要
Based on nonlinear wave mixing, we experimentally propose a scheme for directly generating optical orbital angular momentum(OAM) by a spirally structured fundamental wave interacting with a nonlinear medium, in which the nonlinear susceptibilities are homogenous. In the experiment, the second-harmonic generation of a fundamental wave carrying positive(negative) integers and fractional OAM states was investigated. This study presents a convenient approach for dynamic control of OAM of vortex beams, which may feature their applications in optical manipulation and optical communication.
作者
李俊
刘海港
李妍
王贤平
桑明煌
陈险峰
Jun Li;Haigang Liu;Yan Li;Xianping Wang;Minghuang Sang;Xianfeng Chen(School of Science and Technology,Jiangxi Normal University,Nanchang 330022,China;State Key Laboratory of Advanced Optical Communication Systems and Networks,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;Jiangxi Key Laboratory of Photoelectronics and Telecommunication,Department of Physics,Jiangxi Normal University,Nanchang 330022,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China)
基金
supported by the National Natural Science Foundation of China(Nos.11864017,61765008,and 12064017)
the Scientific and Technology Project of Jiangxi Provincial Education Department(No.GJJ161539)
the Open Project of Key Laboratory of Photoelectronics and Communication of Jiangxi Province(No.2015005)
the Open Project of Jiangxi Key Laboratory of Nanomaterials and Sensors(No.2017007)
the Open Fund by State Key Laboratory of Advanced Optical Communication Systems and Networks(No.2017GZKF18)
the Young Talent Development Plan of Jiangxi Normal University 2019。
