Generation of diffraction-free vectorial elliptic hollow beams with space-varying inhomogeneous polarizations  

作　　者：Hui-Rong Li Peng-Yi Zhao Jian-Ping Yin 李会容;赵朋义;印建平(College of Physics and Electronic Science,Hubei Normal University,Huangshi 435002,China;State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China)

机构地区：[1]College of Physics and Electronic Science,Hubei Normal University,Huangshi 435002,China [2]State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China

出　　处：《Chinese Physics B》2021年第8期370-374,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11304093 and 11274114);the Hubei Provincial Natural Science Foundation,China(Grant No.2018CFB320);the Academic Discipline Project of Hubei Normal University,China(Grant Nos.2014F012 and 2014F013).

摘　　要：Diffraction-free vectorial elliptic hollow beams(vEHBs)are generated by an optical system composed of a short elliptic hollow fiber(EHF)and an axicon.Each beam has a closed elliptic annular intensity profile and space-varying polarization states in its diffraction-free distance of more than 1 m.The generated beams have a counter-clockwise or clockwise periodically-rotated inhomogeneous polarization.And the spin angular momentum(SAM)of the vEHBs is 1ħor-1ħwhich is consistent with the type of dual-mode in the EHF and the periodic polarization rotations of the vEHBs.The vEHBs have potential applications in optically trapping and micromanipulating the micro-or nano-particles,quantum information transmission,and Bose-Einstein condensates,etc.

关 键 词：elliptic hollow beam vectorial beam polarization rotation 

分 类 号：O436.3[机械工程—光学工程]