| 太赫兹波在均匀磁化等离子体中的传播特性 |
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| 引用本文： | 董群锋,郭立新,李应乐,王明军,张 希,郗艳华. 太赫兹波在均匀磁化等离子体中的传播特性[J]. 太赫兹科学与电子信息学报, 2018, 16(1): 38-42 |
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| 作者姓名： | 董群锋 郭立新 李应乐 王明军 张 希 郗艳华 |
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| 作者单位： | 1.Department of Physics and Electronic Engineering，Xianyang Normal University，Xianyang Shaanxi 712000，China;2.School of Physics and Optoelectronic Engineering，Xidian University，Xi’an Shaanxi 710071，China,School of Physics and Optoelectronic Engineering，Xidian University，Xi’an Shaanxi 710071，China,Shaanxi Xueqian Normal University，Xi’an Shaanxi 710100，China,Department of Physics and Electronic Engineering，Xianyang Normal University，Xianyang Shaanxi 712000，China,Department of Physics and Electronic Engineering，Xianyang Normal University，Xianyang Shaanxi 712000，China and Department of Physics and Electronic Engineering，Xianyang Normal University，Xianyang Shaanxi 712000，China |
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| 基金项目： | 中国博士后基金资助项目(2014M562371)；陕西省自然科学基础研究资助项目(2014JM8312)；国家级大学生创新创业训练计划资助项目(201410722024)；咸阳师范学院青蓝计划人才培养资助项目(XSYQL201609) |
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| 摘 要： | 研究了太赫兹波通过均匀磁化等离子体的传播特性，给出了太赫兹波衰减和相移随等离子体密度、碰撞频率、太赫兹波频率和磁感应强度的变化规律。等离子体电子密度越大，衰减和相移越大；随着碰撞频率的增大，电磁波的衰减先增加到峰值后逐渐减小，且随着磁感应强度的增加，衰减的峰值变大，峰值向碰撞频率减小的方向移动；当电子碰撞频率接近电磁波频率时等离子体对右旋极化波的衰减达到极大值。太赫兹波频率增大，衰减逐渐减小，而相移先增加后逐渐减小。
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| 关 键 词： | 太赫兹波；等离子体；衰减；相移 |
| 收稿时间： | 2016-12-19 |
| 修稿时间： | 2017-10-12 |
Terahertz electromagnetic wave propagation in uniform magnetized plasma |
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| DONG Qunfeng,GUO Lixin,LI Yingle,WANG Mingjun,ZHANG Xi and XI Yanhua. Terahertz electromagnetic wave propagation in uniform magnetized plasma[J]. Journal of Terahertz Science and Electronic Information Technology, 2018, 16(1): 38-42 |
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| Authors: | DONG Qunfeng GUO Lixin LI Yingle WANG Mingjun ZHANG Xi XI Yanhua |
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| Abstract: | The propagation of terahertz electromagnetic wave in uniform magnetized plasma is investigated. The relationship among terahertz wave attenuation, phase shift and the plasma density, collision frequency, wave frequency and magnetic field strength are obtained. The attenuation and phase shit increase with the increasing of plasma density, and the attenuations first increase to peak value and then decrease with the increasing of collision frequency. When the magnetic field strength increases, the value of peak increases and the peaks move toward lower collision frequency. And when the collision frequency is close to wave frequency, the attenuation of right polarization wave reaches a maximum value. With the increase of wave frequency, the attenuation decreases, and phase shift firstly increases, and then decreases. |
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