Self-reconstruction of an optical vortex

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The results of experiments devoted to the diffraction of a light beam with an axial optical vortex from the edge of an opaque screen are presented. The reconstruction of an optical vortex in the transmitted beam is observed under conditions when the screen cuts off the central part of the incident beam.

Translated from Pis’ma v Zhurnal Éksperimental’no \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) i Teoretichesko \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) Fiziki, Vol. 71, No. 4, 2000, pp. 192–196.
Original Russian Text Copyright © 2000 by Vasnetsov, Marienko, Soskin.