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Comparison of Accuracy in the Determination of Optical Vortex Coordinates by Different Methods
Optoelectronics, Instrumentation and Data Processing ( IF 0.5 ) Pub Date : 2020-12-25 , DOI: 10.3103/s8756699020030061 F. Yu. Kanev , V. P. Aksenov , N. A. Makenova , I. D. Veretekhin
中文翻译:
不同方法确定旋涡坐标的精度比较
更新日期:2020-12-25
Optoelectronics, Instrumentation and Data Processing ( IF 0.5 ) Pub Date : 2020-12-25 , DOI: 10.3103/s8756699020030061 F. Yu. Kanev , V. P. Aksenov , N. A. Makenova , I. D. Veretekhin
Abstract
Two algorithms for the determination of optical vortex coordinates are considered. In the first one, the vortex is found by branching of interference pattern fringes; in the second one, as a result of processing of the wavefront gradient distribution. It is shown that both algorithms allow one to record the coordinates with a high accuracy; in addition, it is possible to determine shifts of singular points appearing as a result of radiation diffraction.
中文翻译:
不同方法确定旋涡坐标的精度比较
摘要
考虑了两种确定光学涡旋坐标的算法。在第一个中,涡旋是通过干涉图条纹的分支而发现的。在第二个中,作为波前梯度分布的处理结果。结果表明,两种算法都可以使人高精度地记录坐标。另外,可以确定由于放射衍射而出现的奇异点的偏移。