Nonlinear supratransmission in multicomponent systems.
A method is proposed to solve the challenging problem of determining the supratransmission threshold (onset of instability of harmonic boundary driving inside a band gap) in multicomponent nonintegrable nonlinear systems. It is successfully applied to the degenerate three-wave resonant interaction in a birefringent quadratic medium where the process generates spatial gap solitons. No analytic expression is known for this model showing the broad applicability of the method to nonlinear systems.
Anghel-Vasilescu
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Laboratoire de Physique Théorique et Astroparticules, CNRS-IN2P3-UMR5207, Université Montpellier 2, 34095 Montpellier, France.
Dorignac
J
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Geniet
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Leon
J
J
Taki
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