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Effects of Plasma Resonance on Surface Waves in Axially Non-Uniform Plasmas

机译:等离子体共振对轴向非均匀等离子体中表面波的影响

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Surface waves were studied in cold cylindrical plasmas with axially non-uniform density profiles, and the eigenfrequencies and eigenfunctions for the transverse-magnetic modes of pure and hybrid surface waves were obtained numerically for collisional plasmas. The analysis of the wave equation takes into account the singularity caused by plasma resonance at which the wave frequency is equal to the local electron plasma frequency. It is shown that the axial eigenfunction of the pure surface mode peaks at the position of the plasma resonance layer, whereas the axial eigenfunction of the hybrid surface mode has two peaks at the plasma resonance layer and at the interface of the plasma and a quartz plate. Transverse-electric surface modes in axially non-uniform plasmas without plasma resonance are also analyzed.
机译:研究了轴向密度分布不​​均匀的冷圆柱等离子体中的表面波,并通过数值获得了碰撞等离子体的纯净表面波和混合表面波的横向磁模的本征频率和本征函数。波动方程的分析考虑了由等离子体共振引起的奇异性,在该奇异性下,波频率等于局部电子等离子体频率。结果表明,纯表面模式的轴向本征函数在等离子体共振层的位置处达到峰值,而混合表面模式的轴向本征函数在等离子体共振层以及在等离子体与石英板的界面处具有两个峰。 。还分析了无等离子体共振的轴向非均匀等离子体中的横向电表面模式。

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