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ТЕХНОСФЕРА_РИЦ
Issue #5/2022
P. A. Khorin, S. N. Khonina
Aberration-Matched Filter for the Topological Vortex Charge Analysis
Aberration-Matched Filter for the Topological Vortex Charge Analysis
DOI: 10.22184/1993-7296.FRos.2022.16.5.416.424
It is well-known that the astigmatic transformation is used to analyze the topological vortex charge. In this paper, a multi-order filter matched to various aberrations described by the Zernike polynomials is used to implement the astigmatic transformations of vortex beams. Such a filter makes it possible to simultaneously introduce several wave aberrations with various types and levels into the analyzed vortex beam in order to implement various aberrational transformations, including astigmatism. In this case, a set of aberration-transformed distributions of the analyzed vortex beam is formed in the focal plane in different diffracting orders that facilitates determination of its topological charge.
It is well-known that the astigmatic transformation is used to analyze the topological vortex charge. In this paper, a multi-order filter matched to various aberrations described by the Zernike polynomials is used to implement the astigmatic transformations of vortex beams. Such a filter makes it possible to simultaneously introduce several wave aberrations with various types and levels into the analyzed vortex beam in order to implement various aberrational transformations, including astigmatism. In this case, a set of aberration-transformed distributions of the analyzed vortex beam is formed in the focal plane in different diffracting orders that facilitates determination of its topological charge.
Теги: gaussian-laguerre modes hermite-gaussian modes topological charge vortex beams wave aberrations вихревые пучки волновые аберрации моды лагерра-гаусса моды эрмита-гаусса топологический заряд
Aberration-Matched Filter for the Topological Vortex Charge Analysis
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