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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >E-beam sustained plasma as a medium for the amplification of electromagnetic radiation in the subterahertz frequency band
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E-beam sustained plasma as a medium for the amplification of electromagnetic radiation in the subterahertz frequency band

机译:电子束持续等离子体作为介质用于放大电磁辐射在地板频带中的电磁辐射

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摘要

It is demonstrated that low-temperature weakly-ionized nonequilibrium plasma created by a high-energy electron beam in gases (gas mixtures) with the Ramsauer minimum in a transport cross section and the effective attachment of slow electrons can be used as a medium for the amplification of electromagnetic radiation in the subterahertz frequency band. An analysis of the electron energy distribution function (EEDF) in a Xe : F-2 mixture is performed. An energy interval with a growing EEDF is found to exist in such a mixture. Such an interval provides the existence of the population inversion of the electron spectrum in the continuum and is responsible for the positive value of a gain factor for microwave radiation. A gain factor depending on amplified radiation frequency and plasma parameters is analysed.
机译:结果证明,在输送横截面中具有高能电子束(气体混合物)的高能电子束(气体混合物)产生的低温弱电离非醌等离子体和慢电子的有效附接的慢性电子的有效附接 地板赫兹频带电磁辐射的放大。 进行XE:F-2混合物中的电子能量分布函数(EEDF)分析。 发现具有生长EEDF的能量间隔存在于这种混合物中。 这种间隔提供了连续内的电子光谱的群体反演的存在,并且负责微波辐射的增益因子的正值。 分析了取决于放大的辐射频率和等离子体参数的增益因子。

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