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| HAL: hal-00524427, version 1 |
| DOI: 10.1063/1.2749715 |
| Detailed view |  Export this paper |
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| Physics of Plasmas 14, 7 (2007) 072704 |
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| Saturation process induced by vortex-merging in numerical Vlasov-Maxwell experiments of stimulated Raman backscattering |
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| M. Albrecht-Marc 1Alain Ghizzo 1, 2 |
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| For the CALVI collaboration(s) |
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| (2007-07) |
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| The influence of low-frequency nonlinear Bernstein-Greene-Kruskal (BGK)-type waves induced by trapped electrons in backward stimulated Raman scattering is investigated in optical mixing. Semi-Lagrangian Vlasov-Maxwell simulations show two nonlinear behaviors. First, there is a Morales-O'Neil plasma wave frequency downshift retuned by a small wavenumber shift which maintains the Stimulated Raman Scattering (SRS) resonance. The saturation of Raman backscattering begins with phase space vortex merging followed by a transition to lower wavenumbers following the (nonlinear) dispersion relation, resembling weak turbulence. |
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| 1: | Physique des milieux ionisés et applications (LPMIA) |
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CNRS : UMR7040 – Université Henri Poincaré - Nancy I |
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| 2: | CALVI (INRIA Nancy - Grand Est / IECN / LSIIT / IRMA) |
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CNRS : UMR7005 – INRIA – Université de Strasbourg – Université de Lorraine |
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| 3: | INRS Québec |
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INRS Québec |
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| Subject | : | Physics/Physics/Plasma Physics |
| hal-00524427, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00524427 | |
| oai:hal.archives-ouvertes.fr:hal-00524427 | |
| From: Del Sarto Daniele | |
| Submitted on: Thursday, 7 October 2010 20:06:59 | |
| Updated on: Wednesday, 29 June 2011 10:59:42 | |
