Generation of optical 3D unpolarized lattices in a tightly focused random beam

被引：4
|
作者：
LI, Xiangyun [1 ]
Zhu, Xinlu [1 ]
Liu, Lin [1 ]
Wang, Fei [1 ]
Cai, Yangjian [2 ,3 ,4 ,5 ]
Chen, Yahong [1 ]
机构：
[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[2] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Jinan 250014, Peoples R China
[3] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Devices, Jinan 250014, Peoples R China
[4] East China Normal Univ, Joint Res Ctr Light Manipulat Sci & Photon Integra, Shanghai 200241, Peoples R China
[5] East China Normal Univ, Shandong Normal Univ, Shanghai 200241, Peoples R China
来源：
OPTICS LETTERS | 2023年 / 48卷 / 14期
关键词：
COHERENCE; POLARIZATION; ARRAY;
D O I：
10.1364/OL.496844
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the three-dimensional (3D) polarization properties of a tightly focused partially coherent vector beam whose initial spatial coherence structure exhibits a lattice distribution. By examining the 3D degree of polarization and the polarimetric dimension of the tightly focused field, we demonstrate that this initial spatial coherence structure induces a 3D isotropically unpolarized beam lattice in the focal plane. Along the longitudinal direction, we observe the formation of nearly 3D unpolarized channels spanning 16 wavelengths in length near the focal region. We demonstrate that the spatial distribution of the 3D unpolarized lattice can be conveniently controlled through engineering the spatial coherence structure of the incident beam. & COPY; 2023 Optica Publishing Group
引用
收藏
页码：3829 / 3832
页数：4
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