文献类型：期刊文献

英文题名：Generation of fractional optical vortex arrays via controlling the forked photonic lattices in a single spatial light modulator

作者：Yang, Han[1];Wang, Runbing[1];Li, Pan[1];Yang, Qihang[1];Xing, Haoru[1];Xu, Fei[1,2];Qi, Yihong[1]

机构：[1]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：33

期号：20

起止页码：43176

外文期刊名：OPTICS EXPRESS

收录：;EI(收录号：20254119283273);WOS:【SCI-EXPANDED(收录号:WOS:001588932300005)】；

基金：National Natural Science Foundation of China (12274123, 11874146) ; Undergraduate Training Program on Innovation and Entrepreneurship (S202210251104, X202210251297) .

语种：英文

外文关键词：Light modulation - Liquid crystals - Optical communication - Optical lattices - Optical signal processing - Photonics - Quantum communication - Quantum optics - Vortex flow

摘要：Optical vortices and vortex arrays with spiral-shaped wavefronts and theoretically infinite orbital angular momentum (OAM) have potential applications in high-capacity optical communications and computing, optical micro manipulation and other fields. In this work, generation of vortex-beam arrays is studied by using the forked-photonic lattices in a liquid crystal spatial light modulator (SLM). Via adjusting the holograms of forked-photonic lattices, the input Gaussian beam travels through this lattice, experiences phase superposition and is diffracted into vortex arrays of different OAM. Vortex arrays of the same integer, same fractional and different fractional OAMs along the x and y directions are experimentally generated and analyzed, which shows good additivity in all directions and OAM property during propagation. This work suggests a flexible way for generating fractional optical vortex arrays, and implies application in the fields of optical manipulation, optical communication and quantum information processing. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement