Parametric excitation of electron acoustic wave by Langmuir wave in the Earth’s inner magnetospheres

Liu, Yong

doi:10.1016/j.asr.2023.08.008

Cited by 1 publication

(1 citation statement)

References 37 publications

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“…The study of electromagnetic wave propagation through plasma is definitely significant for fundamental understanding. However, this particular research has a wide range of applications in fusion research, laserplasma interaction, radio-astronomy, space research, plasma accelerator, and so on [56][57][58][59][60][61][62][63][64][65]. Based on the theory described here, an experimental design might be proposed to observe the coupling between em wave and electron acoustic wave.…”

Section: Applications and Proposed Experimental Designmentioning

confidence: 99%

Nonlinear interaction of electromagnetic wave with electron acoustic wave in plasma

Dutta,

Goswami,

Kausik

2023

Phys. Scr.

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An analysis on nonlinear interaction of electromagnetic wave with electron acoustic wave is performed in plasma with two different temperature electron fluid in presence of neutralizing static ion background. A newly structured Zakharov’s equations are derived employing two fluid two time scale theory. These coupled Zakharov’s equations describe the weakly nonlinear interaction of em wave perturbation with electron acoustic waves while propagating through plasma. In the low frequency or adiabatic limit, these Zakharov’s equations may be unified to produce a modified NLSE. A solution of the equation, novel in the literature, is derived following the method shown by Kudryashov. In resonant regime, the modified NLSE reduces to NLSE. Though, stable solution exists for both cases, instability analysis shows caviton instability may arise. The threshold value of electric field, at which instability sets in, is virtually zero for resonant region whereas, apart from that region there is a threshold value of electric field, determined by the frequency difference of em wave and electron plasma wave. Experimental observations support these results. This study is relevantfor laser-plasma interaction and astrophysical and space plasma.

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