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Phys Rev Lett. 2003 Sep 19;91(12):123901. Epub 2003 Sep 18.

Red solitons: evidence of spatiotemporal instability in chi 2 spatial soliton dynamics.

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Intstiut de Ciéncies Fotóniques, Jordi Girona 29, NEXUS II, E-08034 Barcelona, Spain.


In chi(2) three-wave mixing, the noise-seeded spatiotemporal modulational instability has a dramatic impact on the spatial soliton formation and on their stability, leading to the occurrence of a temporal breakup on the 20 fs scale and to the counterintuitive observation of spatial solitons with no apparent participation of the high-frequency field in the self-trapping.

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