Properties of off-axis hollow Gaussian–Schell model vortex beam propagating in turbulent atmosphere  

作　　者：Yan-Song Song Ke-Yan Dong Shuai Chang Yan Dong Lei Zhang 宋延嵩;董科研;常帅;董岩;张雷(National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]National and Local Joint Engineering Research Center of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China

出　　处：《Chinese Physics B》2020年第6期230-236,共7页中国物理B（英文版）

基　　金：Natural Science Foundation of Jilin Province,China(Grant No.20180101031JC);the Jilin Provincial Science Foundation for Basic Research,China(Grant No.2019C040-7).

摘　　要：The analytical expression of off-axis hollow Gaussian–Schell model vortex beam(HGSMVB)generated by anisotropic Gaussian–Schell model source is first introduced.The evolution properties of off-axis HGSMVB propagating in turbulent atmosphere are analyzed.The results show that the off-axis HGSMVB with smaller coherence length or propagating in stronger turbulent atmosphere will evolve from dark hollow beam into Gaussian-like beam with a larger beam spot faster.The beams with different values of integer order N or the position for hollow and vortex factor R will have almost the same Gaussian-like spot distribution at the longer propagation distance.

关 键 词：vortex beam off-axis beam Gaussian-Schell model sources laser propagation INTENSITY 

分 类 号：TN929.12[电子电信—通信与信息系统]