高温等离子体中太赫兹波的传输特性

孟令辉; 任洪波; 刘建晓

doi:10.7498/aps.67.20180647

摘要

通过解析方法研究了高温等离子体的太赫兹波传输特性.研究发现，高温等离子体对太赫兹波高频频段透过率较高，表现为通带；对低频频段透过率较低，表现为阻带.这与冷等离子体中电磁波的传输特性是一致的.但其透射率还受到温度与磁场的影响，当改变高温等离子体的电子温度与磁场时，在阻带内会产生一尖锐的透射峰.这种现象在冷等离子体模型中从来没有出现过.本文主要对电子温度和外加磁场两个影响因素进行讨论.研究发现，禁带内出现的透射峰频率受磁场影响，而峰值幅度受温度影响.计算得到了不同外加磁场条件下产生高透过率（透射率约为1）时的电子温度.基于该结果进一步研究了透射峰出现的规律，并通过曲线拟合的方法得到了透射峰频率所遵循的计算公式.数值结果表明透射峰频率与外磁场之间为正比例函数关系，而峰值电子温度取值与外磁场的关系表现为指数规律.最后对拟合得到的方程采用时域有限差分法进行了验证，数值结果与解析解符合较好，证明了该研究的正确性.

关键词:

Abstract

In the hypersonic flight, the air surrounding an aircraft under the effect of high temperature will be ionized. The ionized gas is called plasma. Because of the influence of interaction between electromagnetic wave, in some cases the communication will be interrupted. High temperature effect is an important characteristic of the plasma. Therefore, the study of terahertz wave propagation in high temperature plasma is of great significance. In this paper, the transmission of terahertz wave in a high temperature plasma slab is studied. Generally, high temperature plasma is an anisotropic medium. The electromagnetic wave propagates in anisotropic high-temperature plasma and forms left-hand circular polarization mode or right-hand circular polarization (RCP) mode. It is found that the RCP wave can exhibit some novel characteristics, such as the forbidden band transmission characteristics, which is discovered in this paper. The transmission characteristics of terahertz wave in high temperature plasma are studied analytically. The results show that when the frequency of terahertz wave is lower than plasma frequency, the wave cannot be propagated in high temperature plasma, and it shows a stopband characteristic. When the frequency is higher, it can be transmitted through the plasma, and it presents a passband characteristic. These are consistent with the propagation characteristics of electromagnetic waves in cold plasma. However, some characteristics in high temperature plasma are different from those in the cold plasma. In high temperature plasma, the transmission characteristics are influenced by the electron temperature and external magnetic field. When the two parameters are chosen appropriately, a sharp transmission peak will be produced in the stopband. This phenomenon has never been found in cold plasma models before. And the paper will discuss this problem by the two influencing factors. It is also found that the frequency of the transmission peak is affected by magnetic field, and the peak amplitude is influenced by electron temperature. The electron temperatures at high transmittance (transmittance is about 1) under different applied magnetic fields are calculated. In order to study the law embodied in the data, the method of data fitting is adopted. And the formula of transmission peak frequency is obtained by curve fitting. The fitting results show that the transmission peak frequency is proportional to the external magnetic field. The relationship between peak electron temperature and external magnetic field is exponential. Finally, the fitting formula is verified by the finite-difference time-domain method. The numerical results are in good agreement with the analytical solution results, which proves the correctness of the work.

Keywords:

作者及机构信息

1.
衡水学院物理与电子信息系, 衡水 053000

通信作者: 刘建晓, lxf9431@sina.com

Authors and contacts

1.
School of Electronics and Information Engineering, Hengshui University, Hengshui 053000, China

Corresponding author: Liu Jian-Xiao, lxf9431@sina.com

参考文献

[1]	Zheng L, Zhao Q, Liu S Z, Xing X J 2012 Acta Phys. Sin. 61 245202 (in Chinese)[郑灵, 赵青, 刘述章, 邢晓俊 2012 61 245202]
[2]	Chen W, Guo L X, Li J T, Dan L 2017 Acta Phys. Sin. 66 084102 (in Chinese)[陈伟, 郭立新, 李江挺, 淡荔 2017 66 084102]
[3]	Tian Y, Ai X, Han Y P, Guo L X 2015 Phys. Plasmas 22 290
[4]	Guo L J, Guo L X, Li J T 2017 Phys. Plasmas 24 022108
[5]	Gu L, Tan Z Y, Cao J C 2013 Phys. 42 695 (in Chinese)[顾立, 谭智勇, 曹俊诚 2013 物理 42 695]
[6]	Hu Q L, Liu S B, Li W 2008 Chin. Phys. B 17 1050
[7]	Zhou W, Ji K, Chen H M 2017 Acta Phys. Sin. 66 054210 (in Chinese)[周雯, 季珂, 陈鹤鸣 2017 66 054210]
[8]	Chen C M, Bai Y L, Zhang J, Yang Y, Wang J 2018 High Power Laser and Particle Beams 30 013101 (in Chinese)[陈春梅, 摆玉龙, 张洁, 杨阳, 王娟 2018 强激光与粒子束 30 013101]
[9]	Yuan C X, Zhou Z X, Xiang X L, Sun H G, Wang H, Xing M D, Luo Z J 2011 Nucl. Instrum. Meth. B 269 23
[10]	Yuan C X, Zhou Z X, Zhang J W W, Xiang X L, Yue F, Sun H G 2011 IEEE Trans. Plasma Sci. 39 1577
[11]	Wu X G, Hu Y, Wang P, Nan L 2018 High Power Laser and Particle Beams 30 043102 (in Chinese)[伍习光, 胡洋, 王平, 南琳 2018 强激光与粒子束 30 043102]
[12]	Liu J X, Zhang J L, Su M M 2014 Acta Phys. Sin. 63 137501 (in Chinese)[刘建晓, 张郡亮, 苏明敏 2014 63 137501]
[13]	Liu J X, Su M M, You X, Li A P, Yang H W 2013 Sci. Tech. Eng. 13 4418 (in Chinese)[刘建晓, 苏明敏, 游雄, 李爱萍, 杨宏伟 2013 科学技术与工程 13 4418]
[14]	Yang H W, Zhang Y, Chen R S 2007 J. Nanjing University of Science and Technology 31 491 (in Chinese)[杨宏伟, 张云, 陈如山 2007 南京理工大学学报 31 491]
[15]	Song W, Zhang H 2016 J. Electromagnet Wave 30 1321
[16]	Rahmani Z, Moradi H 2018 Optik 155 81
[17]	Yang H W 2012 J. Russ Laser Res. 33 356
[18]	Lee J H, Kalluri D K 1999 IEEE Trans. Antennas Propag. 47 1146
[19]	Jazi B, Rahmani Z, Shokri B 2013 IEEE Trans. Plasma Sci. 41 290
[20]	Xie C F, Rao K J 1999 Electromagnetic Field and Wave (3rd Ed.) (Beijing:Higher Education Press) pp237-239 (in Chinese)[谢处方, 饶克谨 1999 电磁场与电磁波(第3版) (北京:高等教育出版社) 第237–239页]
[21]	Platzman P M, Buchsbaum S J 1963 Phys. Rev. 132 1
[22]	Tian Y, Han Y P, Ling Y J, Ai X 2014 Phys. Plasmas 21 1768

施引文献

[1]	Zheng L, Zhao Q, Liu S Z, Xing X J 2012 Acta Phys. Sin. 61 245202 (in Chinese)[郑灵, 赵青, 刘述章, 邢晓俊 2012 61 245202]
[2]	Chen W, Guo L X, Li J T, Dan L 2017 Acta Phys. Sin. 66 084102 (in Chinese)[陈伟, 郭立新, 李江挺, 淡荔 2017 66 084102]
[3]	Tian Y, Ai X, Han Y P, Guo L X 2015 Phys. Plasmas 22 290
[4]	Guo L J, Guo L X, Li J T 2017 Phys. Plasmas 24 022108
[5]	Gu L, Tan Z Y, Cao J C 2013 Phys. 42 695 (in Chinese)[顾立, 谭智勇, 曹俊诚 2013 物理 42 695]
[6]	Hu Q L, Liu S B, Li W 2008 Chin. Phys. B 17 1050
[7]	Zhou W, Ji K, Chen H M 2017 Acta Phys. Sin. 66 054210 (in Chinese)[周雯, 季珂, 陈鹤鸣 2017 66 054210]
[8]	Chen C M, Bai Y L, Zhang J, Yang Y, Wang J 2018 High Power Laser and Particle Beams 30 013101 (in Chinese)[陈春梅, 摆玉龙, 张洁, 杨阳, 王娟 2018 强激光与粒子束 30 013101]
[9]	Yuan C X, Zhou Z X, Xiang X L, Sun H G, Wang H, Xing M D, Luo Z J 2011 Nucl. Instrum. Meth. B 269 23
[10]	Yuan C X, Zhou Z X, Zhang J W W, Xiang X L, Yue F, Sun H G 2011 IEEE Trans. Plasma Sci. 39 1577
[11]	Wu X G, Hu Y, Wang P, Nan L 2018 High Power Laser and Particle Beams 30 043102 (in Chinese)[伍习光, 胡洋, 王平, 南琳 2018 强激光与粒子束 30 043102]
[12]	Liu J X, Zhang J L, Su M M 2014 Acta Phys. Sin. 63 137501 (in Chinese)[刘建晓, 张郡亮, 苏明敏 2014 63 137501]
[13]	Liu J X, Su M M, You X, Li A P, Yang H W 2013 Sci. Tech. Eng. 13 4418 (in Chinese)[刘建晓, 苏明敏, 游雄, 李爱萍, 杨宏伟 2013 科学技术与工程 13 4418]
[14]	Yang H W, Zhang Y, Chen R S 2007 J. Nanjing University of Science and Technology 31 491 (in Chinese)[杨宏伟, 张云, 陈如山 2007 南京理工大学学报 31 491]
[15]	Song W, Zhang H 2016 J. Electromagnet Wave 30 1321
[16]	Rahmani Z, Moradi H 2018 Optik 155 81
[17]	Yang H W 2012 J. Russ Laser Res. 33 356
[18]	Lee J H, Kalluri D K 1999 IEEE Trans. Antennas Propag. 47 1146
[19]	Jazi B, Rahmani Z, Shokri B 2013 IEEE Trans. Plasma Sci. 41 290
[20]	Xie C F, Rao K J 1999 Electromagnetic Field and Wave (3rd Ed.) (Beijing:Higher Education Press) pp237-239 (in Chinese)[谢处方, 饶克谨 1999 电磁场与电磁波(第3版) (北京:高等教育出版社) 第237–239页]
[21]	Platzman P M, Buchsbaum S J 1963 Phys. Rev. 132 1
[22]	Tian Y, Han Y P, Ling Y J, Ai X 2014 Phys. Plasmas 21 1768

[1]	杨雨森, 王林, 苟德梽, 唐正明. 等离子体-光子晶体阵列结构波导模型的电磁特性研究. , 2024, 73(24): . doi: 10.7498/aps.73.20241300
[2]	赵新丽, 马国亮, 马余刚. 中高能重离子碰撞中的电磁场效应和手征反常现象. , 2023, 72(11): 112502. doi: 10.7498/aps.72.20230245
[3]	马昊军, 王国林, 罗杰, 刘丽萍, 潘德贤, 张军, 邢英丽, 唐飞. S-Ka频段电磁波在等离子体中传输特性的实验研究. , 2018, 67(2): 025201. doi: 10.7498/aps.67.20170845
[4]	成玉国, 程谋森, 王墨戈, 李小康. 磁场对螺旋波等离子体波和能量吸收影响的数值研究. , 2014, 63(3): 035203. doi: 10.7498/aps.63.035203
[5]	唐田田, 王德华, 黄凯云, 王姗姗. 氢负离子在磁场和电介质表面附近光剥离的研究. , 2012, 61(6): 063202. doi: 10.7498/aps.61.063202
[6]	邹秀, 籍延坤, 邹滨雁. 斜磁场中碰撞等离子体鞘层的玻姆判据. , 2010, 59(3): 1902-1906. doi: 10.7498/aps.59.1902
[7]	邹秀, 邹滨雁, 刘惠平. 外加磁场对碰撞射频鞘层离子能量分布的影响. , 2009, 58(9): 6392-6396. doi: 10.7498/aps.58.6392
[8]	周磊, 唐昌建. 不均匀等离子体中电磁波与Langmuir波的相互作用. , 2009, 58(12): 8254-8259. doi: 10.7498/aps.58.8254
[9]	杨涓, 龙春伟, 陈茂林, 许映桥, 谭小群. 外加磁场微波等离子体喷流对平面电磁波衰减的实验研究. , 2009, 58(7): 4793-4798. doi: 10.7498/aps.58.4793
[10]	杨涓, 朱冰, 毛根旺, 许映乔, 刘俊平. 真空中不同极化电磁波在微波等离子体喷流中的衰减特性实验研究. , 2007, 56(12): 7120-7126. doi: 10.7498/aps.56.7120
[11]	杨宏伟, 陈如山, 张云. 等离子体的SO-FDTD算法和对电磁波反射系数的计算分析. , 2006, 55(7): 3464-3469. doi: 10.7498/aps.55.3464
[12]	朱冰, 杨涓, 黄雪刚, 毛根旺, 刘俊平. 真空环境中等离子体喷流对反射电磁波衰减的实验研究. , 2006, 55(5): 2352-2356. doi: 10.7498/aps.55.2352
[13]	杨涓, 朱良明, 苏维仪, 毛根旺. 电磁波在磁化等离子体表面的功率反射系数计算研究. , 2005, 54(7): 3236-3240. doi: 10.7498/aps.54.3236
[14]	宋法伦, 曹金祥, 王舸. 弱电离等离子体对电磁波吸收的物理模型和数值求解. , 2005, 54(2): 807-811. doi: 10.7498/aps.54.807
[15]	邹　秀, 刘金远, 王正汹, 宫　野, 刘　悦, 王晓钢. 磁场中等离子体鞘层的结构. , 2004, 53(10): 3409-3412. doi: 10.7498/aps.53.3409
[16]	宋法伦, 曹金祥, 王舸. 电磁波在径向非均匀球对称等离子体中的衰减. , 2004, 53(4): 1110-1115. doi: 10.7498/aps.53.1110
[17]	苏纬仪, 杨涓, 魏昆, 毛根旺, 何洪庆. 金属平板前等离子体的电磁波功率反射系数计算分析. , 2003, 52(12): 3102-3107. doi: 10.7498/aps.52.3102
[18]	欧阳世根, 关毅, 佘卫龙. 旋转超导体中的电流与电磁场. , 2002, 51(7): 1596-1599. doi: 10.7498/aps.51.1596
[19]	唐德礼, 孙爱萍, 邱孝明. 均匀磁化等离子体与雷达波相互作用的数值分析. , 2002, 51(8): 1724-1729. doi: 10.7498/aps.51.1724
[20]	刘明海, 胡希伟, 江中和, 刘克富, 辜承林, 潘垣. 电磁波在大气层人造等离子体中的衰减特性. , 2002, 51(6): 1317-1320. doi: 10.7498/aps.51.1317

计量

文章访问数: 6314
PDF下载量: 126
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

搜索

留言板