Polarization-reversal-induced damping of left-hand polarized wave on electron cyclotron resonance.
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.
Takahashi
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Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan. kazunori@ecei.tohoku.ac.jp
Kaneko
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Hatakeyama
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