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Spatial grid symmetries and reduced models in the simulation of beam counterpropagation in a nonlinear medium

Mcdonald, GS and Firth, WJ 1993, 'Spatial grid symmetries and reduced models in the simulation of beam counterpropagation in a nonlinear medium' , Journal of Modern Optics, 40 (1) , pp. 23-32.

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    Abstract

    In the context of the nonlinear interaction of counterpropagating light beams, we demonstrate the unrealistic symmetries that arise in the simulation of spontaneous pattern formation when using square computational grids. We have formulated a generalization of the split-step Fourier method which allows for non-orthogonal spatial grids. Implementation is shown to be simple and to entail negligible computational overheads. Results for two-dimensional Gaussian and extended cosine-bell input beam profiles are presented.

    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: Journal of Modern Optics
    Publisher: Taylor & Francis
    Refereed: Yes
    ISSN: 0950-0340
    Related URLs:
    Depositing User: GS McDonald
    Date Deposited: 14 Oct 2011 12:21
    Last Modified: 20 Aug 2013 18:14
    URI: http://usir.salford.ac.uk/id/eprint/18352

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