Vortices and defect statistics in two-dimensional optical chaos

Abstract

We present the first direct experimental evidence of topological defects in nonlinear optics. For increasing Fresnel numbers F, the two-dimensional field is characterized by an increasing number of topological defects, from a single vortex, up to a large number of vortices with zero net topological charge. At variance with linear scattering from a fixed phase plate, here the defect pattern evolves in time according to the nonlinear dynamics. We assign the scaling exponents for the mean number of defects, their mean separation, and the charge unbalance as functions of F, as well as the correlation time of the defect pattern.

Keywords

Topological quantum numberVortexPhysicsScalingOptical vortexTopological defectNonlinear systemTopology (electrical circuits)Charge (physics)ScatteringPhase (matter)Statistical physicsCondensed matter physicsOpticsQuantum mechanicsGeometryMathematics

Affiliated Institutions

National Institute of Optics IT

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Publication Info

Year: 1991
Type: article
Volume: 67
Issue: 27
Pages: 3749-3752
Citations: 250
Access: Closed

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APA Style

                            
                                
                                    F. T. Arecchi, 
                                
                                    Giovanni Giacomelli, 
                                
                                    P. L. Ramazza
                                
                                et al.
                            
                            (1991). 
                            Vortices and defect statistics in two-dimensional optical chaos. 
                            Physical Review Letters
                            , 67
                            (27)
                            , 3749-3752.
                            https://doi.org/10.1103/physrevlett.67.3749
                        

Identifiers

DOI: 10.1103/physrevlett.67.3749
PMID: 10044816

Data Quality

Data completeness: 77%