Geometrical constraints on plasma couplers for Raman compression

Z. Toroker, V. M. Malkin, A. A. Balakin, G. M. Fraiman, N. J. Fisch

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Backward Raman compression in plasma is based on a 3-wave resonant interaction, which includes two counter-propagating laser pulses (pump and seed pulses) and an electron plasma wave (Langmuir wave). The resonant interaction can be ensured in nearly homogeneous plasmas. However, for high-power, large-aperture experiments, the homogeneous region becomes pancake-shaped and would likely be surrounded by thicker regions of inhomogeneous plasma. When these inhomogeneous plasma regions are extensive, significant inverse bremsstrahlung and seed dispersion may impede the compression effect. These deleterious effects may, however, be mitigated by chirping the seed and pump pulses.

Original languageEnglish (US)
Article number083110
JournalPhysics of Plasmas
Issue number8
StatePublished - Aug 1 2012

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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    Toroker, Z., Malkin, V. M., Balakin, A. A., Fraiman, G. M., & Fisch, N. J. (2012). Geometrical constraints on plasma couplers for Raman compression. Physics of Plasmas, 19(8), [083110].