Bingham, R. and Santos, J.E. and Silva, L.O. (2007) White-light parametric instabilities in plasmas. Physical Review Letters, 98. ISSN 0031-9007
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
Parametric instabilities driven by partially coherent radiation in plasmas are described by a generalized statistical Wigner-Moyal set of equations, formally equivalent to the full wave equation, coupled to the plasma fluid equations. A generalized dispersion relation for stimulated Raman scattering driven by a partially coherent pump field is derived, revealing a growth rate dependence, with the coherence width sigma of the radiation field, scaling with 1/sigma for backscattering (three-wave process), and with 1/sigma1/2 for direct forward scattering (four-wave process). Our results demonstrate the possibility to control the growth rates of these instabilities by properly using broadband pump radiation fields.
| Item type: | Article |
|---|---|
| ID code: | 5109 |
| Keywords: | plasmas, physics, white light, radiation, raman equations, Plasma physics. Ionized gases |
| Subjects: | Science > Physics > Plasma physics. Ionized gases |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Strathprints Administrator |
| Date Deposited: | 08 Jan 2008 |
| Last modified: | 04 Oct 2012 12:19 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/5109 |
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