Plasmon band gap generated by intense ion acoustic waves
S. Son, S. Ku
TL;DR
This paper demonstrates that intense ion acoustic waves can create a plasmon band gap, which modifies the dispersion relation and can be used to measure wave intensity and control nonlinear wave interactions.
Contribution
It introduces the concept of plasmon band gap formation due to ion acoustic waves and explores its potential applications in plasma wave control.
Findings
Ion acoustic waves induce a significant plasmon band gap.
The band gap width correlates with wave intensity.
The band gap can suppress Langmuir wave decay channels.
Abstract
In the presence of an intense ion acoustic wave, the energy-momentum dispersion relation of plasmons is strongly modified to exhibit a band gap structure. The intensity of an ion acoustic wave might be measured from the band gap width. The plasmon band gap can be used to block the nonlinear cascading channel of Langmuir wave decay
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