JETP Letters

, 88:418 | Cite as

Polarization singularities in partially coherent combined beams

  • Ch. V. Felde
  • A. A. Chernyshov
  • G. V. Bogatyryova
  • P. V. Polyanskii
  • M. S. Soskin
Atoms, Spectra, Radiations

Abstract

Vector singularities are predicted and discovered experimentally in partially polarized combined fields formed by incoherent superposition of orthogonally polarized beams. Such singularities are U contours with zero degree of polarization and isolated P points with unit degree of polarization centered at vortices of the orthogonally polarized component of the combined beam. Crossing a U contour switches the polarization state to the orthogonal one. The above-mentioned singularities are adequately described in terms of the complex degree of polarization in the Stokes-space representation. It is shown that the field elements corresponding to the extrema of the complex degree of polarization form the vector skeleton of a partially coherent nonuniformly polarized field.

PACS numbers

42.25.Ja 42.25.Kb 42.30.Ms 

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Copyright information

© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  • Ch. V. Felde
    • 1
  • A. A. Chernyshov
    • 1
  • G. V. Bogatyryova
    • 2
  • P. V. Polyanskii
    • 1
  • M. S. Soskin
    • 3
  1. 1.Chernovtsy National UniversityChernovtsyUkraine
  2. 2.National Technical University “Kiev Polytechnic Institute”KievUkraine
  3. 3.Institute of PhysicsNational Academy of Sciences of UkraineKievUkraine

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