Takahashi K, Kaneko T, Hatakeyama R
Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan.
Phys Rev Lett. 2005 Jun 3;94(21):215001. doi: 10.1103/PhysRevLett.94.215001. Epub 2005 May 31.
The left-hand polarized wave, which has been believed not to be related to electron cyclotron resonance (ECR), is for the first time demonstrated to be damped near the ECR point in an inhomogeneously magnetized plasma as a result of the polarization reversal to the right-hand polarized wave. The polarization reversal is found to be caused by the existence of the boundary between a plasma and a vacuum region, the local point of which shifts depending on the plasma column radius. This phenomenon is quantitatively explained in terms of the dispersion relation including the effect of the radial boundary condition.
左旋极化波，一直以来被认为与电子回旋共振（ECR）无关，首次被证明在非均匀磁化等离子体中，由于向右旋极化波的极化反转，在ECR点附近被衰减。发现极化反转是由等离子体和真空区域之间边界的存在引起的，其局部点根据等离子体柱半径而移动。这种现象通过包含径向边界条件影响的色散关系得到了定量解释。
