Paper
18 November 1999 Gaussian beam beyond a paraxial barrier
Tatyana A. Fadeyeva, Vladlen G. Shvedov, Alexander V. Volyar
Author Affiliations +
Proceedings Volume 3904, Fourth International Conference on Correlation Optics; (1999) https://doi.org/10.1117/12.370465
Event: International Conference on Correlation Optics, 1999, Chernivsti, Ukraine
Abstract
The singular structure of Gaussian beam are discussed. It is found out that the Gaussian beam may be represented as set of straight lines placed on a hyperbolic surface. It is shown that a wave front of this beam is a function of a point source, but the distance of from the origin point to the wave front surface is a complex magnitude. An argument of this complex function is a beam topological phase which characterizes a wave front rotation. Singularities manifold placed at the beam focal plane is ring edge dislocations. Dislocation reaction processes are begun if only there is a diffractive wave resulted a scattering at a phase or opaque obstacle.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tatyana A. Fadeyeva, Vladlen G. Shvedov, and Alexander V. Volyar "Gaussian beam beyond a paraxial barrier", Proc. SPIE 3904, Fourth International Conference on Correlation Optics, (18 November 1999); https://doi.org/10.1117/12.370465
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KEYWORDS
Gaussian beams

Wavefronts

Opacity

Polarization

Laser scattering

Paraxial approximations

Polonium

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