BEYOND THE LIGHT INTENSITY OR INTENSITY MOMENTS AND MEASUREMENTS OF THE VORTEX SPECTRUM IN COMPLEX LIGHT BEAMS

被引:21
|
作者
Volyar, A. V. [1 ]
Bretsko, M. V. [1 ]
Akimova, Ya. E. [1 ]
Egorov, Yu. A. [1 ]
机构
[1] VI Vernadsky Crimean Fed Univ, Acad Unit, Phys & Technol Inst, Academician Vernadsky 4, Simferopol 295007, Russia
关键词
diffractive optics; image processing; optical vortices; orbital angular momentum; moments of intensity;
D O I
10.18287/2412-6179-2017-42-5-736-743
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The paper presents a new method for measuring the vortex spectrum (amplitude squares and initial phases) as well as the orbital angular momentum without cuts and splices of the wave front of a vortex array. Such an extension of the measurement capabilities of the combined beam properties is achieved by recording the intensity moments of the light beam as a whole without destroying its internal structure. The correlation coefficient between the initial intensity distribution and the intensity distribution taking into account the experimentally obtained vortex spectrum reaches 91%, which indicates the reliability of the presented method.
引用
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页码:736 / 743
页数:8
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