Roux, FS2012-05-082012-05-082012-03Roux, FS. 2012. Lateral phase drift of the topological charge density in stochastic optical fields. Optics Communications, vol. 285(6), pp 947-9520030-4018http://www.sciencedirect.com/science/article/pii/S0030401811013307http://hdl.handle.net/10204/5843Copyright: 2011 Elsevier. This is the pre-print version of the work. The definitive version is published in Optics Communications, vol. 285(6), pp 947-952The statistical distributions of optical vortices or topological charge in stochastic optical fields can be inhomogeneous in both transverse directions. Such two-dimensional inhomogeneous vortex or topological charge distributions evolve in a complex way during free-space propagation. While the evolution of onedimensional topological charge densities can be described by a linear diffusion process, the evolution of two-dimensional topological charge densities exhibits some additional nonlinear dynamics. Here we propose a phase drift mechanism as a partial explanation for this additional nonlinear dynamics. Numerical results are presented in support of this proposal.enOptical vortexSingular opticsStochastic optical fieldTopological charge densityLateral phase drift of the topological charge density in stochastic optical fieldsArticleRoux, F. (2012). Lateral phase drift of the topological charge density in stochastic optical fields. http://hdl.handle.net/10204/5843Roux, FS "Lateral phase drift of the topological charge density in stochastic optical fields." (2012) http://hdl.handle.net/10204/5843Roux F. Lateral phase drift of the topological charge density in stochastic optical fields. 2012; http://hdl.handle.net/10204/5843.TY - Article AU - Roux, FS AB - The statistical distributions of optical vortices or topological charge in stochastic optical fields can be inhomogeneous in both transverse directions. Such two-dimensional inhomogeneous vortex or topological charge distributions evolve in a complex way during free-space propagation. While the evolution of onedimensional topological charge densities can be described by a linear diffusion process, the evolution of two-dimensional topological charge densities exhibits some additional nonlinear dynamics. Here we propose a phase drift mechanism as a partial explanation for this additional nonlinear dynamics. Numerical results are presented in support of this proposal. DA - 2012-03 DB - ResearchSpace DP - CSIR KW - Optical vortex KW - Singular optics KW - Stochastic optical field KW - Topological charge density LK - https://researchspace.csir.co.za PY - 2012 SM - 0030-4018 T1 - Lateral phase drift of the topological charge density in stochastic optical fields TI - Lateral phase drift of the topological charge density in stochastic optical fields UR - http://hdl.handle.net/10204/5843 ER -