Observation of topological charge pair nucleation in parametric wave mixing

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Title:	Observation of topological charge pair nucleation in parametric wave mixing
Author:	Petrov, D V; Torner Sabata, Lluís
Other authors:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica
Abstract:	We report the observation of the nucleation of pairs of screw dislocations of opposite topological charges in second-harmonic generation processes in quadratic nonlinear media. The observation provides evidence about the conservation and evolution of the topological charge of light waves parametrically interacting in the nonlinear medium in the dynamical regime explored. @S1063-651X~98!12111-6#
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal -Signal theory (Telecommunication) -Senyal, teoria del (Telecomunicació)
Rights:	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Published version Article
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