nonlinear mode conversion, non-neutral plasma, Trivelpiece-Gould modes, coupling
The nonlinear interaction of the two lowest Trivelpiece-Gould modes in a non-neutral plasma has been observed. Because of coupling in the nonlinear terms of the continuity and momentum equations, the two modes can exchange energy and convert one to the other. This can be modeled using the cold fluid equations and the averaging method. Experimentally, this process always stops with the lower frequency mode dominating the final state. Numerical integration of the model suggests that this occurs because the higher frequency mode is more strongly damped than the lower frequency mode.
Original Publication Citation
Hart, Grant W., Ross L. Spencer, and Bryan G. Peterson."Observation of and model for nonlinear mode conversion in a non-neutral plasma." Physics of Plasmas 1 (23): 2738-2747.
BYU ScholarsArchive Citation
Hart, Grant W.; Peterson, Bryan G.; and Spencer, Ross L., "Observation of and model for nonlinear mode conversion in a non-neutral plasma" (2003). Faculty Publications. 486.
Physical and Mathematical Sciences
Physics and Astronomy
© 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?PHPAEN/10/2738/1
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