Optics and Spectroscopy

, Volume 95, Issue 5, pp 792–799

Decay and fusion of polarization umbilics in a singular beam passed through a crystal


  • A. V. Volyar
    • Simferopol State University
  • T. A. Fadeeva
    • Simferopol State University
Physical and Quantum Optics

DOI: 10.1134/1.1628730

Cite this article as:
Volyar, A.V. & Fadeeva, T.A. Opt. Spectrosc. (2003) 95: 792. doi:10.1134/1.1628730


Evolution of polarized umbilics in a laser beam propagating in an optical system consisting of two anisotropic crystals with crossed optical axes and a Faraday cell is analyzed. It is shown that the phase perturbation caused by the second crystal results in radial shifts of the singularities, whereas the rotation of the plane of polarization when the Faraday cell is placed between the crystals causes angular displacements. When the Faraday cell is placed behind the second crystal, it provides additional fine control of the linear and angular shifts of the optical vortices.

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© MAIK "Nauka/Interperiodica" 2003