PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Propagation of terahertz waves in nonuniform plasma slab under "electromagnetic window" |
Hao Li(李郝)1, Zheng-Ping Zhang(张正平)1,2,3, and Xin Yang (杨鑫)1,2,3,† |
1 College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China; 2 Semiconductor Power Device Reliability Engineering Research Center of Ministry of Education, Guizhou University, Guiyang 550025, China; 3 Key Laboratory of Micro-Nano-Electronics and Software Technology of Guizhou Province, Guiyang 550025, China |
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Abstract The application of magnetic fields, electric fields, and the increase of the electromagnetic wave frequency are up-and-coming solutions for the blackout problem. Therefore, this study considers the influence of the external magnetic field on the electron flow and the effect of the external electric field on the electron density distribution, and uses the scattering matrix method (SMM) to perform theoretical calculations and analyze the transmission behavior of terahertz waves under different electron densities, magnetic field distributions, and collision frequencies. The results show that the external magnetic field can improve the transmission of terahertz waves at the low-frequency end. Magnetizing the plasma from the direction perpendicular to the incident path can optimize the right-hand polarized wave transmission. The external electric field can increase the transmittance to some extent, and the increase of the collision frequency can suppress the right-hand polarized wave cyclotron resonance caused by the external magnetic field. By adjusting these parameters, it is expected to alleviate the blackout phenomenon to a certain extent.
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Received: 24 June 2021
Revised: 31 July 2021
Accepted manuscript online: 07 August 2021
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PACS:
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52.40.Db
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(Electromagnetic (nonlaser) radiation interactions with plasma)
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52.25.Fi
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(Transport properties)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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Fund: Project supported by the Open Foundation of Semiconductor Power Device Reliability Engineering Research Center of Ministry of Education, China (Grant No. ERCMEKFJJ2019-(05)), the Natural Science Foundation of Guizhou University, China (Grant No. (2019)62), and the China Scholarship Council (Grant No. 202106675002). |
Corresponding Authors:
Xin Yang
E-mail: e_yangx@126.com
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Cite this article:
Hao Li(李郝), Zheng-Ping Zhang(张正平), and Xin Yang (杨鑫) Propagation of terahertz waves in nonuniform plasma slab under "electromagnetic window" 2022 Chin. Phys. B 31 035202
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