Large amplitude electron plasma oscillations

We consider a cold plasma in order to find new large-amplitude wave solutions in the long-wavelength limit. Accordingly we derive two generic coupled equations which describe the energy exchange between the electrostatic and electromagnetic waves. A new kind of quasi-periodic behavior is found. Our...

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Bibliographic Details
Published in:Physics letters. A Vol. 378; no. 22-23; pp. 1632 - 1635
Main Authors: Brodin, G., Stenflo, L.
Format: Journal Article
Language:English
Published: Elsevier B.V 18-04-2014
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Summary:We consider a cold plasma in order to find new large-amplitude wave solutions in the long-wavelength limit. Accordingly we derive two generic coupled equations which describe the energy exchange between the electrostatic and electromagnetic waves. A new kind of quasi-periodic behavior is found. Our derivations may be considered as a prerequisite to extended studies of stimulated Raman scattering for cases where the wave amplitudes are so large that standard perturbation techniques are not applicable. •Two generic coupled equations are derived.•Threshold values for parametric instabilities are deduced.•The coupled equations are studied numerically in the strongly nonlinear regime.
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content type line 23
ISSN:0375-9601
1873-2429
1873-2429
DOI:10.1016/j.physleta.2014.04.011