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Bistable Helmholtz bright solitons in saturable materials

Christian, JM, McDonald, GS and Chamorro-Posada, P 2009, 'Bistable Helmholtz bright solitons in saturable materials' , Journal of the Optical Society of America 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: 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 the Optical Society of America B
    Publisher: Optical Society of America
    Refereed: Yes
    ISSN: 0740-3224
    Depositing User: GS McDonald
    Date Deposited: 13 Oct 2011 10:47
    Last Modified: 20 Aug 2013 17:00
    URI: http://usir.salford.ac.uk/id/eprint/2355

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