激光技术2024，Vol.48Issue(2)：261-267,7.DOI:10.7510/jgjs.issn.1001-3806.2024.02.018
基于分数涡旋光束的偏振奇点传输特性研究
Study of propagation characteristics of polarization singularities based on fractional vortex beams
摘要
Abstract
In order to study the propagation characteristics of the polarization singularity based on the fractional vortex beam in free space,the method of numerical simulation was adopted,the theoretical analysis and data simulation were carried out,and the evolution of topology of polarization singularity based on the fractional circular Airy vortex beam was obtained during propagation in free space.The results show that regardless of whether there is a circular polarization singularity in the initial plane,the self-focusing properties of the polarization singularity based on the fractional circular Airy vortex beam will affect the topology of the light field during the propagation process,making the light field doesn't contain circular polarization singularities at the beginning of transmission,but after traveling through its self-focusing distance,several circular polarization singularities will appear in the light field.Compared with polarization singularities based on integer circular Airy vortex beams,both have singular topology self-recovery properties,while fractional-based vortex beams will bring more circular polarization singularities into the recovered light field point.This work will deepen the understanding of the propagation characteristics of polarization singularities,provide a theoretical basis for its application,and broaden the application range of circular Airy beams.关键词
物理光学/传输特性/数值模拟/偏振奇点Key words
physical optics/propagation characteristics/numerical simulation/polarization singularity分类
物理学引用本文复制引用
叶东,李俊瑶,李宗辰,张颐..基于分数涡旋光束的偏振奇点传输特性研究[J].激光技术,2024,48(2):261-267,7.基金项目
公安部科技计划资助项目(2022YY28 （）
2022JC16) （）
公安技术"十四五"江苏省重点学科建设项目 （）
公安部物证鉴定中心基本科研专项基金资助项目(2022JB024) （2022JB024）
江苏警官学院高层次引进人才科研启动项目(JSP119GKZL404) （JSP119GKZL404）
江苏警官学院法庭科学先进材料开发应用科研创新团队基金资助项目(2021BK01) （2021BK01）
