中国光学（中英文）2023，Vol.16Issue(5)：1195-1205,11.DOI:10.37188/CO.EN.2022-0022
均匀偏振cosh-Pearcey-Gauss光束的远场坡印廷矢量,自旋与轨道角动量
The Poynting vectors,spin and orbital angular momentums of uniformly polarized cosh-Pearcey-Gauss beams in the far zone
摘要
Abstract
We propose cosh-Pearcey-Gauss beams with uniform polarization,which are mainly modulated by a hyperbolic cosine function(n,Ω)and the angles related to uniform polarization(α,δ).Based on angular spectrum representation and the stationary phase method,the Poynting vector,Spin Angular Momentums(SAM)and Orbital Angular Momentums(OAMs)in the far zone are studied.The results show that a larger n or.Ωin the hyperbolic cosine function can partition the longitudinal Poynting vectors,SAMs and OAMs into more multi-lobed parabolic structures.Different polarizations described by(α,δ)can distinguish their Poynt-ing vectors and angular momentums between the TE and TM terms,though this does not affect the patterns of the whole beam.Furthermore,the weight of the left and right sides of longitudinal Poynting vectors,SAMs and OAMs in TE and TM terms can be modulated by left-handed or right-handed elliptical polariza-tion,respectively.The results in this paper may be useful for information storage and polarization imaging.关键词
cosh-Pearcey-Gauss光束/自旋角动量/轨道角动量/坡印廷矢量Key words
cosh-Pearcey-Gauss beams/spin angular momentum/orbital angular momentum/Poynting vec-tor分类
电子信息工程引用本文复制引用
廖赛,程科,黄宏伟,杨嶒浩,梁梦婷,孙望轩..均匀偏振cosh-Pearcey-Gauss光束的远场坡印廷矢量,自旋与轨道角动量[J].中国光学（中英文）,2023,16(5):1195-1205,11.基金项目
四川省自然科学基金项目(No.23NSFSC1097)Supported by Natural Science Foundation of Sichuan Province(No.23NSFSC1097) （No.23NSFSC1097）
