One dimensional full wave analysis of slow-to-fast mode conversion in lower hybrid frequencies
One dimensional full wave analysis of slow-to-fast mode conversion in lower hybrid frequencies
复制标题
较低混合频率下慢到快模式转换的一维全波分析
DOI：
10.1063/1.4905061
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发表时间：
2014-12
影响因子：
2.2
通讯作者：
Guozhang Jia, Zhe Gao
中科院分区：
文献类型：
--
作者：
Guozhang Jia, Zhe Gao
通过使用描述冷平面分层等离子体中的波的场方程组，对较低混合频率范围内从慢波到快波的线性转换进行数值分析。这些方程作为两点边值问题求解，其中每种模式的偏振在边界条件下一致设置。获得各种密度分布的散射系数和场图案。结果表明，对于大密度尺度长度，结果与传统认知非常吻合。相反，当尺度长度小于模式波长时，在通常的计算中被忽略的反射分量和来自转换区域的可能的透射转换分量变得重要。当转换过程涉及急剧变化的密度分布时，这些新组件的加入将提高注入射频功率的模拟传播和沉积的准确性。同时，低频情况下入射慢波的可达性也受到密度剖面尺度长度的影响。
The linear conversion from the slow wave to the fast wave in the lower hybrid range of frequencies is analyzed numerically by using the set of field equations describing waves in a cold plane-stratified plasma. The equations are solved as a two-point boundary value problem, where the polarizations of each mode are set consistently in the boundary conditions. The scattering coefficients and the field patterns are obtained for various density profiles. It is shown that, for large density scale length, the results agree well with the traditional cognitions. In contrast, the reflected component and the probable transmitted-converted component from the conversion region, which are neglected in the usual calculations, become significant when the scale length is smaller than the wavelength of the mode. The inclusion of these new components will improve the accuracy of the simulated propagation and deposition for the injected rf power when the conversion process is involved within a sharp-varying density profile. Meanwhile, the accessibility of the incident slow wave for the low frequency case is also affected by the scale length of the density profile.
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影响因子：
2.2
作者：
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影响因子：
2.2
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影响因子：
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通讯作者：
P. Bonoli;J. Ko;R. Parker;A. Schmidt;G. Wallace;J. Wright;C. Fiore;A. Hubbard;J. Irby;E. Marmar;M. Porkolab;D. Terry;S. Wolfe;S. Wukitch;James R. Wilson;S. Scott;E. Valeo;C. Phillips;R. Harvey