FDTD Simulation on Terahertz Waves Propagation Through a Dusty Plasma

WANG Maoyan (王茂琰); ZHANG Meng (张猛); LI Guiping (李桂萍); JIANG Baojun (姜宝钧); ZHANG Xiaochuan (张小川); XU Jun (徐军)

doi:10.1088/1009-0630/18/8/02

Plasma Science and Technology > 2016 > 18(8): 798-803. > DOI: 10.1088/1009-0630/18/8/02

WANG Maoyan (王茂琰), ZHANG Meng (张猛), LI Guiping (李桂萍), JIANG Baojun (姜宝钧), ZHANG Xiaochuan (张小川), XU Jun (徐军). FDTD Simulation on Terahertz Waves Propagation Through a Dusty Plasma[J]. Plasma Science and Technology, 2016, 18(8): 798-803. DOI: 10.1088/1009-0630/18/8/02

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FDTD Simulation on Terahertz Waves Propagation Through a Dusty Plasma

1School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China 2The 41st Institute of China Electronics Technology Group Corporation, Qingdao 266555, China

Funds: supported by National Natural Science Foundation of China (Nos. 41104097, 11504252, 61201007, 41304119), the Fundamental Research Funds for the Central Universities (Nos. ZYGX2015J039, ZYGX2015J041), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20120185120012)

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Received Date: July 26, 2015

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Abstract

Abstract

The frequency dependent permittivity for dusty plasmas is provided by introducing the charging response factor and charge relaxation rate of airborne particles. The field equations that describe the characteristics of Terahertz (THz) waves propagation in a dusty plasma sheath are derived and discretized on the basis of the auxiliary differential equation (ADE) in the finite difference time domain (FDTD) method. Compared with numerical solutions in reference, the accuracy for the ADE FDTD method is validated. The reflection property of the metal Aluminum interlayer of the sheath at THz frequencies is discussed. The effects of the thickness, effective collision frequency, airborne particle density, and charge relaxation rate of airborne particles on the electromagnetic properties of Terahertz waves through a dusty plasma slab are investigated. Finally, some potential applications for Terahertz waves in information and communication are analyzed.
- Terahertz,
- dusty plasma,
- finite-difference time-domain (FDTD),
- blackout

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References

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