文章编号2097-1842（2023）05-1195-11ThePoyntingvectors,spinandorbitalangularmomentumsofuniformlypolarizedcosh-Pearcey-GaussbeamsinthefarzoneLIAOSai，CHENGKe*，HUANGHong-wei，YANGCeng-hao，LIANGMeng-ting，SUNWang-xuan（CollegeofOptoelectronicEngineering,ChengduUniversityofInformationTechnology,Chengdu610225,China）*Correspondingauthor，E-mail:ck@cuit.edu.cnAbstract:Weproposecosh-Pearcey-Gaussbeamswithuniformpolarization,whicharemainlymodulatedbyahyperboliccosinefunction(n,Ω)andtheanglesrelatedtouniformpolarization(α,δ).Basedonangularspectrumrepresentationandthestationaryphasemethod,thePoyntingvector,SpinAngularMomentums(SAM)andOrbitalAngularMomentums(OAMs)inthefarzonearestudied.TheresultsshowthatalargernorΩinthehyperboliccosinefunctioncanpartitionthelongitudinalPoyntingvectors,SAMsandOAMsintomoremulti-lobedparabolicstructures.Differentpolarizationsdescribedby(α,δ)candistinguishtheirPoynt-ingvectorsandangularmomentumsbetweentheTEandTMterms,thoughthisdoesnotaffectthepatternsofthewholebeam.Furthermore,theweightoftheleftandrightsidesoflongitudinalPoyntingvectors,SAMsandOAMsinTEandTMtermscanbemodulatedbyleft-handedorright-handedellipticalpolariza-tion,respectively.Theresultsinthispapermaybeusefulforinformationstorageandpolarizationimaging.Keywords:cosh-Pearcey-Gaussbeams;spinangularmomentum;orbitalangularmomentum;Poyntingvec-tor均匀偏振cosh-Pearcey-Gauss光束的远场坡印廷矢量，自旋与轨道角动量廖赛，程科*，黄宏伟，杨嶒浩，梁梦婷，孙望轩（成都信息工程大学光电工程学院,四川成都610225）摘要：本文提出了均匀偏振cosh-Pearcey-Gauss光束，其主要由双曲余弦函数(n,Ω)和偏振相关角度(α,δ)所调制。基于矢量角谱法和稳相法，研究了该光束的远场坡印廷矢量、自旋角动量和轨道角动量。研究结果表明：较大的双曲余弦函数值能将远场坡印廷矢量、自旋角动量和轨道角动量分割成多瓣抛物线结构。虽然左旋和右旋椭圆偏振不能影响整个光束结构，但却可通过调节TE和TM项的左半边和右半边的分布权重，进而分辨出光束的远场坡印廷矢量和角动量分布。本文结果对信息存储与偏振成像技术领域有着潜在的应用价值。收稿日期：2022-11-11...
