Topological charge of optical vortices in the far field with an initial fractional charge: optical "dipoles"

In this work, using the Rayleigh-Sommerfeld integral and the Berry formula, the topological charge (TC) of a Gaussian optical vortex with an initial fractional TC is calculated. It is shown that for different fractional parts of the TС, the beam contains a different number of screw dislocations, whi...

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Hlavní autoři: A.G. Nalimov, V.V. Kotlyar
Médium: Článek
Jazyk:English
Vydáno: Samara National Research University 2022-04-01
Edice:Компьютерная оптика
Témata:
On-line přístup:https://computeroptics.ru/eng/KO/Annot/KO46-2/460203e.html