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.
Reference:
Roux, FS. 2012. Lateral phase drift of the topological charge density in stochastic optical fields. Optics Communications, vol. 285(6), pp 947-952
Roux, F. (2012). Lateral phase drift of the topological charge density in stochastic optical fields. http://hdl.handle.net/10204/5843
Roux, FS "Lateral phase drift of the topological charge density in stochastic optical fields." (2012) http://hdl.handle.net/10204/5843
Roux F. Lateral phase drift of the topological charge density in stochastic optical fields. 2012; http://hdl.handle.net/10204/5843.
Copyright: 2011 Elsevier. This is the pre-print version of the work. The definitive version is published in Optics Communications, vol. 285(6), pp 947-952