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Phys Rev Lett. 2004 Jan 23;92(3):033901. Epub 2004 Jan 22.

Stable multicolor periodic-wave arrays.

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  • 1ICFO-Institut de Ciencies Fotoniques, and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, E-08034 Barcelona, Spain.

Abstract

We study the existence and stability of periodic-wave arrays propagating in uniform quadratic nonlinear media and discover that they become completely stable above a threshold light intensity. To the best of our knowledge, this is the first example in physics of completely stable periodic-wave patterns propagating in conservative uniform media supporting bright solitons.

PMID:
14753875
[PubMed]
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