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The parametric decay of a finite-extent cold-electron plasma wave (slow wave) was studied experimentally. Using a frequency of ω₀10ωₚᵢ, it was found that the decay waves propagated along the pump wave rather than in the →E₀×→B direction. This is in agreement with the recent theoretical predictions of finite-length stabilization.
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Wong et al. (1978) studied this question.
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