Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence

doi:10.1016/j.optcom.2022.128454

	Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence
	Zhang, Yakai 1; Wang, Jing 1,2; Qian, Xianmei 2; Zhu, Wenyue 2; Li, Jinhong 1,2
刊名	OPTICS COMMUNICATIONS
	2022-10-01
卷号	520
关键词	Orbital angular momentum Twist phase Multi-Gaussian Turbulence Anisotropic
ISSN号	0030-4018
DOI	10.1016/j.optcom.2022.128454
通讯作者	Li, Jinhong(jinhongli@live.cn)
英文摘要	Twist phase is an unconventional phase that allows a partially coherent beam to carry orbital angular momentum (OAM). In this work, based on the Mercer's expansion and the nonnegativity of the cross spectral density function, we obtain a twistable condition for the multi-Gaussian Schell model (MGSM) correlation structure. The expression of an elliptical twisted multi-Gaussian Schell model (TMGSM) beam through non-Kolmogorov anisotropic atmospheric turbulence is rigorously derived, and its spectral density and OAM variation in anisotropic turbulence are studied in detail. The results show that the spectral density and OAM flux density distributions rotate with increasing transmission distance, and increasing the multi Gaussian modulus and twist factor can significantly suppress the negative effects of atmospheric turbulence. The difference of turbulence anisotropy, beam modulus, and coherence length can affect the distribution of OAM. Furthermore, the twist phase affects both the OAM distribution and magnitude. Our work is helpful for exploring new forms of OAM sources, and promote the application of free-space optical communications.
资助项目	Open Research Fund of Key Labora-tory of Atmospheric Optics, Chinese Academy of Sciences[HTAD-JJ-19-02] ; National Natural Science Foundation of China[11904253] ; Shanxi Provincial Central Government Guides Local Science and Technology Development Fund Project, China[YDZX20201400001386]
WOS关键词	2ND-ORDER MOMENTS ; PROPAGATION ; COHERENCE ; PHASE ; LIGHT
WOS研究方向	Optics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000807737200011
资助机构	Open Research Fund of Key Labora-tory of Atmospheric Optics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Shanxi Provincial Central Government Guides Local Science and Technology Development Fund Project, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131317]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Jinhong
作者单位	1.Taiyuan Univ Sci & Technol, Sch Appl Sci, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yakai,Wang, Jing,Qian, Xianmei,et al. Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence[J]. OPTICS COMMUNICATIONS,2022,520.
APA	Zhang, Yakai,Wang, Jing,Qian, Xianmei,Zhu, Wenyue,&Li, Jinhong.(2022).Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence.OPTICS COMMUNICATIONS,520.
MLA	Zhang, Yakai,et al."Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence".OPTICS COMMUNICATIONS 520(2022).