paper 150205140750

Abstract

We present a method of generation of beams with the spiral intensity distribution in the direction of propagation. The maximum intensity of the interference pattern of a Gauss beam and a co-propagating beam with a wavefront dislocation forms a spiral curve in the space. The numerical simulations have shown that the spiral pitch decreases with the Bessel beam of the first order divergence increasing, the stable length of the spiral decreases with the Gauss beam divergence decreasing. The proposed method was tested experimentally.

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Natalia D. Kundikova

Anastasia Popkova

Yu. Miklyaev

Ivan Popkov