| 李俊杰,董群锋,张辉,武瑞青.THz波斜入射非均匀磁化等离子体的衰减特性研究[J].装备环境工程,2019,16(12):104-107. LI Jun-jie,DONG Qun-feng,ZHANG Hui,WU Rui-qing.Attenuation Characteristics of Inhomogeneous Magnetized Plasma with Oblique Incidence of THz Wave[J].Equipment Environmental Engineering,2019,16(12):104-107. |
| THz波斜入射非均匀磁化等离子体的衰减特性研究 |
| Attenuation Characteristics of Inhomogeneous Magnetized Plasma with Oblique Incidence of THz Wave |
| 投稿时间：2019-04-08 修订日期：2019-05-17 |
| DOI：10.7643/issn.1672-9242.2019.12.017 |
| 中文关键词: 太赫兹波 非均匀等离子体 磁化 衰减特性 |
| 英文关键词:terahertz wave inhomogeneous plasma magnetization attenuation characteristics |
| 基金项目:陕西省教育厅专项科研计划项目(18JK0833) |
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| Author | Institution |
| LI Jun-jie | School of Science, Xi'an Technological University, Xi' an 710021, China |
| DONG Qun-feng | School of Science, Xi'an Technological University, Xi' an 710021, China;School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China |
| ZHANG Hui | School of Science, Xi'an Technological University, Xi' an 710021, China;School of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, China |
| WU Rui-qing | School of Science, Xi'an Technological University, Xi' an 710021, China |
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| 中文摘要: |
| 目的 研究太赫兹波在非均匀磁化等离子体中的衰减特性。方法 运用WKB近似法分析太赫兹波斜入射非均匀磁化等离子体后的衰减特征。结果 当入射角度增大时，衰减增大；当碰撞频率增大时，衰减变小；外加磁场强度增大时，衰减的最大值向着太赫兹波频率较高的方向移动；电子密度峰值增大时，衰减增大。结论 可以通过调节外加磁场强度、等离子体电子密度和碰撞频率，使得太赫兹波在等离子体中传播的过程中衰减发生变化，为太赫兹雷达反等离子体隐身技术提供重要参考。 |
| 英文摘要: |
| Objective To study the attenuation characteristics of terahertz wave in inhomogeneous magnetized plasma. Methods The attenuation characteristics of terahertz wave inhomogeneous magnetized plasma with oblique incidence were analyzed with the WKB approximation method. Results The attenuation increased with the increase of the incident angle, and decreased with the increase of the collision frequency. When the intensity of external magnetic field increased, the maximum attenuation moved towards the higher frequency of terahertz wave. The attenuation increased with the increase of peak value of electron density. Conclusion The adscititious magnetic field intensity, the plasma electron density and the collision frequency can be adjust to change the attenuation process of THZ wave propagation in plasma to provide a valuable reference for the plasma stealth technology. |
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