Optical wavefront dislocations and their properties

We analyze screw, edge and mixed screw-edge dislocations in monochromatic light waves. Methods for the experimental determination of the topological charge value and helicity of screw dislocations are elaborated. By use of computer-synthesized binary gratings waves with edge and mixed screw-edge dis...

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Bibliographic Details
Published in:Optics communications 1995-09, Vol.119 (5), p.604-612
Main Authors: Basistiy, I.V., Soskin, M.S., Vasnetsov, M.V.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Geometrical optics
Optics
Physics
Wave fronts and ray tracing
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Summary:We analyze screw, edge and mixed screw-edge dislocations in monochromatic light waves. Methods for the experimental determination of the topological charge value and helicity of screw dislocations are elaborated. By use of computer-synthesized binary gratings waves with edge and mixed screw-edge dislocations were obtained and studied experimentally. The transformation of a mixed screw-edge dislocation into a single screw dislocation was observed and explained.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(95)00267-C