| Power Absorption of High Frequency Electromagnetic Waves in a Partially Ionized Plasma Layer in Atmosphere Conditions |
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| 引用本文： | 郭斌,王晓钢. Power Absorption of High Frequency Electromagnetic Waves in a Partially Ionized Plasma Layer in Atmosphere Conditions[J]. 等离子体科学和技术, 2005, 7(1): 2645-2648 |
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| 作者姓名： | 郭斌 王晓钢 |
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| 作者单位： | StateKeyLabofMaterialsModificationbyBeamsandPlasmaScience＆EngineeringCenter,DepartmentofPhysics,DalianUniversityofTechnology,Dalian116024,China |
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| 摘 要： | We have studied the absorption, reflection, and transmission of electromagnetic waves in an unmagnetized uniform plasma layer covering a metal surface in atmosphere conditions. Instead of the absorption of the electromagnetic wave propagating only once in previous work on the plasma layer, a general formula of total power absorption by the plasma layer with an infinite time of reflections between the atmosphere-plasma interface and the metal surface has been derived for the first time. Effects of plasma parameters, especially the dependence of the fraction of positive lons, negative ions and electrons in plasmas on the power absorption processes are discussed. The results show that the existence of negative ions significantly reduces the power absorption of the electromagnetic wave. Absorptions of electromagnetic waves are calculated.
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| 关 键 词： | 电磁波 等离子体 交互作用 吸收功率 大气环境 |
Power Absorption of High Frequency Electromagnetic Waves in a Partially Ionized Plasma Layer in Atmosphere Conditions |
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| Guo Bin,Wang XiaogangState Key Lab of Materials Modification by Beams and Plasma Science , Engineering Center. Power Absorption of High Frequency Electromagnetic Waves in a Partially Ionized Plasma Layer in Atmosphere Conditions[J]. Plasma Science & Technology, 2005, 7(1): 2645-2648 |
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| Authors: | Guo Bin Wang XiaogangState Key Lab of Materials Modification by Beams Plasma Science & Engineering Center |
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| Affiliation: | Guo Bin,Wang XiaogangState Key Lab of Materials Modification by Beams and Plasma Science & Engineering Center,Department of Physics,Dalian University of Technology,Dalian 116024,China |
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| Abstract: | We have studied the absorption, reflection, and transmission of electromagnetic waves in an unmagnetized uniform plasma layer covering a metal surface in atmosphere conditions.Instead of the absorption of the electromagnetic wave propagating only once in previous work on the plasma layer, a general formula of total power absorption by the plasma layer with an infinite time of reflections between the atmosphere-plasma interface and the metal surface has been derived for the first time. Effects of plasma parameters, especially the dependence of the fraction of positive ions, negative ions and electrons in plasmas on the power absorption processes are discussed. The results show that the existence of negative ions significantly reduces the power absorption of the electromagnetic wave. Absorptions of electromagnetic waves are calculated. |
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| Keywords: | electromagnetic waves electromagnetic waves interactions with plasma |
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