论文标题
旋转磁化等离子体中的波传播
Wave propagation in rotating magnetised plasmas
论文作者
论文摘要
当这种培养基移动而不是静止时，培养基中的波传播特性会从根本上受到影响。在各向同性介质介质中的旋转具有两个值得注意的贡献：一个是机械诱导的圆形双折射，它作为极化的旋转实现，另一个是图像旋转，与波的横向结构的旋转相对应。在这里，我们回顾磁化等离子体中旋转的效果。我们首先表明，旋转对极化的机械效应是在磁化的等离子体中叠加到经典的法拉第旋转上，并且未能解释这一新贡献可能会导致偏振数据解释的错误。我们还证明，在等离子体中回收了图像旋转，用于许多带有轨道角动量的低频磁性等离子体波，并且这种现象有望在等离子体中开发新的旋转诊断工具。
Wave propagation properties in a medium are fundamentally affected when this medium is moving instead of at rest. In isotropic dielectric media rotation has two noteworthy contributions: one is a mechanically induced circular birefringence which materialises as a rotation of the polarisation, the other is image rotation which corresponds to a rotation of the transverse structure of a wave. Here we review the effect of rotation in a magnetised plasma. We first show that the mechanical effect of rotation on polarisation is in a magnetised plasma superimposed onto the classical Faraday rotation, and that failing to account for this new contribution could lead to errors in the interpretation of polarimetry data. We also demonstrate that image rotation is recovered in plasmas for a number of low-frequency magnetised plasma waves carrying orbital angular momentum, and that this phenomenon holds promise for the development of new rotation diagnostic tools in plasmas.
