The XI International Youth Scientific School "The Coherent Optics and Optical Spectroscopy"

Optical phase dislocations of the pulsed beams: spatio-temporal vortices

V. V. Yangirova^a, A. P. Sukhorukov<sup>b

a</sup> M. V. Lomonosov Moscow State University, Faculty of Physics
^b M. V. Lomonosov Moscow State University

Abstract: We discuss the properties of a novel type of dislocations, called entangled spatio-temporal vortices. Dynamic interferometry method is applied for their registration. We demonstrate that two non-complanar phase modulated beams generate periodical train of spatio-temporal vortices. Propagation dynamics of a spatio-temporal vortex-soliton in defocusing Kerr-like medium is considered as well.

UDC: 621.3.09:621.373.1

Received: 06.02.2006