UDC 535.8
CSCSTI 29.31
Russian Classification of Professions by Education 03.04.02
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 613
BISAK SCI053000 Physics / Optics & Light
In this paper, we present the results of a theoretical study of the formation of a “perfect” optical vortex by a partially coherent optical radiation source using a converging lens. In the paraxial approximation, we consider the spatial distribution of the mean intensity of a partially coherent Bessel-Gaussian optical beam in the image focal plane of a converging spherical thin lens, depending on the geometric parameters of the beam, its coherence, and propagation conditions. We analyzed the cases of completely coherent, partially coherent Gauss-Shell type and completely incoherent optical radiation sources. Our results showed that the maximum value of the mean intensity of a “perfect” optical vortex decreases as the magnitude of the topological charge of the vortex increases, and the position of the maximum of the mean intensity shifts away from the optical axis of the vortex.
optical vortex, Bessel-Gaussian optical beam, topological charge
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