Paper
3 December 2003 Dynamics of the dislocation reactions in the single-axis crystals
Alexander V. Volyar, Tatyana A. Fadeyeva, Yuriy A. Egorov
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Abstract
Until the present time it is commonly supposed that optical vortices (screw or edge wavefront dislocations) are generated either by natural or artificial phase nonuniformity (phase masks, compute-generated holograms, optical edges and so on) located on a light beam way (or inside a laser cavity). A nonuniformly polarized beam is regarded as a field with a fine wave structure, bearing vector singularities such as disclinations, C-lines and L-surfaces without connection with optical vortices. Nevertheless, as it will be shown later on the fine polarization field structure can be transformed under certain conditions into typical phase singularities - optical vortices and vice versa. Moreover, the energy efficiencies of these transformations are considerably higher and constructions of corresponding devices are more simpler than those connected with the usual vortex generation. The aim of the given paper is experimentally and theoretically to study a singular field structure of a light beam after the single-axis crystal in order to reveal the physical mechanism of polarization and phase transformations.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander V. Volyar, Tatyana A. Fadeyeva, and Yuriy A. Egorov "Dynamics of the dislocation reactions in the single-axis crystals", Proc. SPIE 5257, Ninth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, (3 December 2003); https://doi.org/10.1117/12.545874
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KEYWORDS
Crystals

Optical vortices

Polarization

Laser crystals

Spiral phase plates

Gaussian beams

Polarizers

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