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Optical vortices in beam propagation through a self-defocussing medium

Mcdonald, GS, Syed, KS and Firth, WJ 1992, 'Optical vortices in beam propagation through a self-defocussing medium' , Optics Communications, 94 (5) , pp. 469-476.

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    Abstract

    We present numerical simulations and analysis of optical vortex propagation in a 3D self-defocussing medium. On plane wave background initial conditions composed of points and lines of phase discontinuity are shown, in some cases, to evolve towards a regular crystal of fully nonlinear vortices. In other cases the solution more resembles a vortex gas. For gaussian beams, we have derived a simple set of ordinary differential equations which are shown to accurately describe the motion of a single vortex while the background beam undergoes significant spreading.

    Item Type: Article
    Themes: Energy
    Media, Digital Technology and the Creative Economy
    Subjects outside of the University Themes
    Schools: Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
    Journal or Publication Title: Optics Communications
    Publisher: Elsevier
    Refereed: Yes
    ISSN: 0030-4018
    Related URLs:
    Depositing User: GS McDonald
    Date Deposited: 14 Oct 2011 12:32
    Last Modified: 20 Aug 2013 18:14
    URI: http://usir.salford.ac.uk/id/eprint/18354

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