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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4676

Title: Evolution of the optical vortex density in phase corrected speckle fields
Authors: Roux, FS
Chen, M
Keywords: Optical vortex density
Phase modulation
Phase perturbations
Speckle beams
Optical vortices
Physics
SAIP Conference 2010
Issue Date: Sep-2010
Publisher: SAIP 2010
Citation: Roux, FS and Chen, M. 2010. Evolution of the optical vortex density in phase corrected speckle fields. 55th Annual Conference of the South African Institute of Physics (SAIP), CSIR International Convention Centre, Pretoria, 27 September-1 October 2010, pp 1
Series/Report no.: Conference Paper
Abstract: In an attempt to understand the process whereby the phase modulation due to atmospheric turbulance causes phase singularities (also called optical vortices), the authors investigated the effect of phase perturbations in speckle beams. They perturb the phase by removing the continuous part of the phase from a speckle field. While optical vortices are annihilated and created at equal rates in a speckle field, these rates vary in different way as a result of the phase perturbations. This allows one to determine the characteristics scales associated with these processes. Here the authors report the initial results and show how one can represent the evolution of the vortex density in the paraxial limit.
Description: 55th Annual Conference of the South African Institute of Physics (SAIP), CSIR International Convention Centre, Pretoria, 27 September-1 October 2010
URI: http://hdl.handle.net/10204/4676
Appears in Collections:Laser physics and technology
General science, engineering & technology

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