Generation of multi-freedom controllable helical beam through high-order Bessel beams[Invited]  

作　　者：Xiaoyun Jiang Minglie Hu Chen Xie 蒋小云;胡明列;谢辰(Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]Ultrafast Laser Laboratory,Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education,School of Precision Instruments and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Optics Letters》2024年第9期31-36,共6页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62275191 and 62227821).

摘　　要：In this Letter,we propose a scheme to generate helical optical fields with multi-freedom controllable features.High-quality helical lobes with adjustable radii,chirality,and lobe numbers can be generated by tuning the phase term of two paired highorder Bessel beams.Furthermore,the pitch of the helical beam can be controlled by combining another rotational phase term.The validity of our scheme is demonstrated in both simulations and experiments.Our scheme is promising to facilitate the rapid fabrication of helical structures with diverse parameters,which are critical in various applications,such as optical metamaterials,biology,and particle transport.

关 键 词：helical beams high-order Bessel beams multi-freedom manipulation 

分 类 号：O43[机械工程—光学工程]