Effect of negative ions on stimulated Raman scattering in a plasma

In the linear theory of stimulated Raman scattering based on the three‐fluid model, the effect of negative ions is reflected in the growth rate through simple functions of P (the relative fraction of negative ions in the number of negatively charged particles in a plasma). The Raman instability is w...

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Veröffentlicht in:	Physics of fluids. B, Plasma physics Plasma physics, 1990-09, Vol.2 (9), p.2272-2273
1. Verfasser:	Cho, Guan Sik
Format:	Artikel
Sprache:	eng
Schlagworte:	640201 - Atmospheric Physics- Auroral, Ionospheric, & Magetospheric Phenomena 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700108 - Fusion Energy- Plasma Research- Wave Phenomena ANIONS CHARGED PARTICLES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COHERENT SCATTERING DAMPING ENERGY Exact sciences and technology FUNCTIONS HEAVY IONS INHIBITION INSTABILITY GROWTH RATES IONS LANDAU DAMPING Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA RAMAN EFFECT SCATTERING THRESHOLD ENERGY Waves, oscillations, and instabilities in plasmas and intense beams
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Zusammenfassung:	In the linear theory of stimulated Raman scattering based on the three‐fluid model, the effect of negative ions is reflected in the growth rate through simple functions of P (the relative fraction of negative ions in the number of negatively charged particles in a plasma). The Raman instability is weakened by negative ions, when the pump intensity is well above the threshold, while it is strengthened close to the threshold.
ISSN:	0899-8221 2163-503X
DOI:	10.1063/1.859411