Journal
WAVES IN RANDOM AND COMPLEX MEDIA
Volume 29, Issue 4, Pages 665-677Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17455030.2018.1462542
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- Shandong Institute of Space Electronic Technology [2013JJ008]
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The properties of terahertz waves propagation in a homogeneous, magnetized, and collisional plasma are studied in this paper. We first theoretically calculate the reflectance and absorbance coefficients for terahertz waves passing through this region. Then, numerous simulations are conducted to investigate the influence of the plasma on the terahertz waves propagation. According to the results, the plasma density, collision frequency, and magnetic field play important roles in dielectric spectra, and then result in large impacts on the propagation with the variation of the plasma thickness, incident angle, and the gas pressure. The absorbance increases with the increase of plasma density, and the collision frequency. With respect to the collisional absorption and electron cyclotron resonance, the absorbance first increases to its maximum peak and then decreases as the wave frequency increases. When the plasma density increases, the peak value shifts to a higher frequency. Meanwhile, the plasma slab acts as the absorber or reflector with the variation of the gas pressure and the plasma thickness. These results provide supplementary information on the terahertz waves propagation in plasma and can serve as a theoretical basis for its application.
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