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- Title
Polarization singularities in partially coherent combined beams.
- Authors
Felde, Ch. V.; Chernyshov, A. A.; Bogatyryova, G. V.; Polyanskii, P. V.; Soskin, M. S.
- 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.
- Subjects
POLARIZATION (Nuclear physics); POLARIZED beams (Nuclear physics); SUPERPOSITION principle (Physics); ORTHOGONAL curves; VECTOR analysis
- Publication
JETP Letters, 2008, Vol 88, Issue 7, p418
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S002136400819003X