Slow-light spatial solitons |
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Authors: | Fanjoux Gil Michaud Jérémy Maillotte Hervé Sylvestre Thibaut |
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Institution: | Institut FEMTO-ST Département d'Optique PM Duffieux UMR CNRS-Université de Franche-Comté no 6174, Route de Gray 25030 Besan?on Cedex, France. |
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Abstract: | We numerically and experimentally report the observation of slow-light spatial solitons in a Kerr medium owing to light amplification by stimulated Raman scattering. This was achieved in a CS2 nonlinear planar waveguide that possesses both a strong self-focusing nonlinearity to generate the spatial Raman soliton and a Raman susceptibility sharp enough to induce the slow-light process simultaneously. We show that the Raman Stokes component is optically delayed by more than 120 ps for a 140 ps Raman pulse duration and only 3 cm of propagation length, while propagating as a spatial soliton beam. |
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