强激光与粒子束2025，Vol.37Issue(5)：150-156,7.DOI:10.11884/HPLPB202537.240351
基于涡旋光的三种气辉(极光)光谱线型的比较研究
Comparative study of three airglow(aurora)spectral line profiles based on vortex light
摘要
Abstract
Adding the vortex factors to the Gaussian,Lorenz,and Voigt airglow(aurora)light spectrum profiles of the for the upper atmospheric wind measurement,the vortex expressions of the three profiles of airglow(aurora)light sources are derived theoretically.The three profiles of airglow(aurora)with vortex light are simulated,and it is found that the extinction of the three profiles of light sources varies with the topological charge number l.The Gaussian vortex light rotates around the axis and the phase changes by 2πl,and the central extinction part and phase increase with the increase of l.The main extinction direction of Lorenz vortex is the transverse axis distribution direction.With the increase of l,the light intensity decreases,and the center extinction is carried out in discontinuous mode,which has a spiral spatial phase structure.Voigt vortex light profile is symmetrical on both the transverse and longitudinal sides,and the top is V-shaped extinction along the-z direction.The expressions are derived between the interference intensity of the three profile of vortex light,optical path difference and topological charge number,and the 3D diagram of the interference fringe of the three profiles of vortex light is simulated,and it is found that the spatial spectral intensity produces different fork structures under different topological charge number:with the change of vortex phase,the original spatial distribution changes,and the whole extends and extrudes from the maximum light intensity to both sides,and the influence of vortex phase extrude and dislocation is greater under fractional topological load.The experimental results show that there are fringes outside the bright ring of the Gaussian vortex light with the same topological charge number l,and the total topological phase will increase 2π and the beam waist radius will increase with each increase of topological charge numberlby 1.关键词
气辉(极光)/光谱线型/涡旋光/拓扑荷数/高层大气Key words
airglow(aurora)/spectral profile/Gaussian vortex light/topological charge/upper atmosphere分类
数理科学引用本文复制引用
李存霞,章艺珊,周健,刘洋河,惠宁菊,王彦龙,符迪迪,唐远河..基于涡旋光的三种气辉(极光)光谱线型的比较研究[J].强激光与粒子束,2025,37(5):150-156,7.基金项目
陕西省教育厅青年创新团队项目(23JP118,24JP114) （23JP118,24JP114）
国家自然科学基金面上项目(41975040) （41975040）
