Gaussian beam beyond a paraxial barrier

Tatyana A. Fadeyeva; Vladlen G. Shvedov; Alexander V. Volyar

doi:10.1117/12.370465

18 November 1999 Gaussian beam beyond a paraxial barrier

Tatyana A. Fadeyeva, Vladlen G. Shvedov, Alexander V. Volyar

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.

Citation Download Citation

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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