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Bistable Helmholtz bright solitons in saturable materials

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Christian, JM, McDonald, GS and Chamorro-Posada, P 2009, 'Bistable Helmholtz bright solitons in saturable materials' , Journal of the Optical Society of America B: Optical Physics (JOSA B), 26 (12) , pp. 2323-2330.

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    Abstract

    We present, to the best of our knowledge, the first exact analytical solitons of a nonlinear Helmholtz equation with a saturable refractive-index model. These new two-dimensional spatial solitons have a bistable characteristic in some parameter regimes, and they capture oblique (arbitrary-angle) beam propagation in both the forward and backward directions. New conservation laws are reported, and the classic paraxial solution is recovered in an appropriate multiple limit. Analysis and simulations examine the stability of both solution branches, and stationary Helmholtz solitons are found to emerge from a range of perturbed input beams.

    Item Type: Article
    Themes: Subjects / Themes > Q Science > QC Physics > QC350-467 Optics. Light
    Subjects outside of the University Themes
    Schools: Colleges and Schools > College of Science & Technology
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
    Journal or Publication Title: Journal of the Optical Society of America B: Optical Physics (JOSA B)
    Publisher: Optical Society of America
    Refereed: Yes
    ISSN: 0740-3224
    Depositing User: JM Christian
    Date Deposited: 08 Feb 2010 13:29
    Last Modified: 18 Oct 2011 11:32
    URI: http://usir.salford.ac.uk/id/eprint/2984

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