Geodesic
Optical phase dislocations of the pulsed beams: spatio-temporal vortices
Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 148 (2006) no. 1, pp. 185-191 
V. V. Yangirova; A. P. Sukhorukov. Optical phase dislocations of the pulsed beams: spatio-temporal vortices. Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 148 (2006) no. 1, pp. 185-191. http://geodesic.mathdoc.fr/item/UZKU_2006_148_1_a23/
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     title = {Optical phase dislocations of the pulsed beams: spatio-temporal vortices},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
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     url = {http://geodesic.mathdoc.fr/item/UZKU_2006_148_1_a23/}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

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.

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