Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method
| Autor: | Zhengqi Zheng, Guanjun Xu, Pengfei Wang, Qingwen Rao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Dusty plasma
Electron density Materials science Plasma parameters Terahertz radiation 02 engineering and technology Astrophysics::Cosmology and Extragalactic Astrophysics lcsh:Chemical technology 01 natural sciences Biochemistry Molecular physics 010305 fluids & plasmas Analytical Chemistry symbols.namesake Collision frequency Physics::Plasma Physics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Astrophysics::Solar and Stellar Astrophysics terahertz wave lcsh:TP1-1185 Electrical and Electronic Engineering Particle density Instrumentation ceramic substrate Debye sheath Communication 020206 networking & telecommunications Plasma propagation properties Atomic and Molecular Physics and Optics scattering matrix method dusty plasma Physics::Space Physics symbols Astrophysics::Earth and Planetary Astrophysics |
| Zdroj: | Sensors, Vol 21, Iss 263, p 263 (2021) Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| Popis: | The propagation characteristics of terahertz (THz) waves incident vertically into inhomogeneous and collisional dusty plasma with a ceramic substrate are studied using the scattering matrix method (SMM). The effects of the incident wave frequency and plasma parameters, such as the maximal electron density, dust particle density, dust particle radius and collision frequency, on the reflectance and transmittance of THz waves in the dusty plasma are discussed. In addition, the differences of the propagation properties in the dusty plasma, with and without ceramic substrate, are analyzed. Meanwhile, the differences of the propagation properties in dusty plasma and common plasma, respectively, with ceramic substrate are also compared. Simulation results show that the substrate and dust particles have significant influence on the propagation characteristics of THz wave in plasma sheath. Finally, the transmission increases with the increase of electron density, dust density, dust particle radius and collision frequency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|