Quantitative measurement of the orbital angular momentum of light with a single, stationary lens

被引：178
作者：
Alperin, Samuel N. [1 ]
Niederriter, Robert D. [2 ]
Gopinath, Juliet T. [2 ,3 ]
Siemens, Mark E. [1 ]
机构：
[1] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA
[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[3] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA
来源：
OPTICS LETTERS | 2016年 / 41卷 / 21期
基金：
美国国家科学基金会;
关键词：
OPTICAL VORTICES; TOPOLOGICAL CHARGE; BEAM; TRANSFORMATION; VORTEX; MODES; APERTURE; TWIST;
D O I：
10.1364/OL.41.005019
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show that the average orbital angular momentum (OAM) of twisted light can be measured simply and robustly with a single stationary cylindrical lens and a camera. Theoretical motivation is provided, along with self-consistent optical modeling and experimental results. In contrast to qualitative interference techniques for measuring OAM, we quantitatively measure non-integer average OAM in mode superpositions. (C) 2016 Optical Society of America
引用
收藏
页码：5019 / 5022
页数：4
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