论文标题
磁化等离子体中射频波的旋转大厅效应
Spin Hall effect of radiofrequency waves in magnetized plasmas
论文作者
论文摘要
在不均匀培养基中，电磁波射线偏离了前阶几何光学元件预测的轨迹。这种效果称为光的自旋效果，通常在用于在等离子体中建模波的射线追踪代码中忽略。在这里，我们证明了旋转厅效应对于在融合实验中使用的参数的环形磁化等离子体中的射频效果可能很重要。例如，相对于在poloidal方向上的最低阶射线轨迹，电子环绕波梁可能会偏离十个波长（$ \ sim 0.1 \，\ text {m} $）。我们使用扩展几何光学器件的量规不变射线方程来计算这种位移，我们还将理论预测与全波模拟进行了比较。
In inhomogeneous media, electromagnetic-wave rays deviate from the trajectories predicted by the leading-order geometrical optics. This effect, called the spin Hall effect of light, is typically neglected in ray-tracing codes used for modeling waves in plasmas. Here, we demonstrate that the spin Hall effect can be significant for radiofrequency waves in toroidal magnetized plasmas whose parameters are in the ballpark of those used in fusion experiments. For example, an electron-cyclotron wave beam can deviate by as large as ten wavelengths ($\sim 0.1\,\text{m}$) relative to the lowest-order ray trajectory in the poloidal direction. We calculate this displacement using gauge-invariant ray equations of extended geometrical optics, and we also compare our theoretical predictions with full-wave simulations.
