Optical vortex braiding with Bessel beams

被引：21
|
作者：
Voitiv, Andrew A. [1 ]
Andersen, Jasmine M. [1 ]
Siemens, Mark E. [1 ]
Lusk, Mark T. [2 ]
机构：
[1] Univ Denver, Dept Phys & Astron, 2112 E Wesley Ave, Denver, CO 80208 USA
[2] Colorado Sch Mines, Dept Phys, 1500 Illinois St, Golden, CO 80401 USA
来源：
OPTICS LETTERS | 2020年 / 45卷 / 06期
基金：
美国国家科学基金会;
关键词：
PHASE SINGULARITIES; LIGHT-MODULATOR;
D O I：
10.1364/OL.388032
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose the braiding of optical vortices in a laser beam with more than 2 pi rotation by superposing Bessel modes with a plane wave. We experimentally demonstrate this by using a Bessel-Gaussian beam and a coaxial Gaussian, and we present measurements of three complete braids. The amount of braiding is fundamentally limited only by the numerical aperture of the system, and we discuss how braiding can be controlled experimentally for any number of vortices. (C) 2020 Optical Society of America
引用
收藏
页码：1321 / 1324
页数：4
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