Physics – Plasma Physics
Scientific paper
2008-09-11
Phys. Plasmas, Vol 14, pp. 072307 (2007)
Physics
Plasma Physics
17 pages, 7 figures, Published in Phys. Plasmas
Scientific paper
10.1063/1.2749227
In a recent one-dimensional numerical fluid simulation study [Saxena et al., Phys. Plasmas 13,032309 (2006)], it was found that an instability is associated with a special class of one-dimensional nonlinear solutions for modulated light pulses coupled to electron plasma waves in a relativistic cold plasma model. It is shown here that the instability can be understood on the basis of the stimulated Raman scattering phenomenon and the occurrence of density bursts in the trailing edge of the modulated structures are a manifestation of an explosive instability arising from a nonlinear phase mixing mechanism.
Das Amita
Kaw Predhiman
Saxena Vikrant
Sen Abhijit
Sengupta Sudip
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