Research on the Propagation Characteristics of THz Waves in Spatial Inhomogeneous and Time-Varying and Weakly Ionized Dusty Plasma

2019 ◽  
Vol 47 (10) ◽  
pp. 4745-4752 ◽  
Author(s):  
Chen Wei ◽  
Lixia Yang ◽  
Zhixiang Huang ◽  
Lixin Guo
Keyword(s):  
Dusty Plasma ◽  
Time Varying ◽  
Propagation Characteristics ◽  
Weakly Ionized ◽  
Thz Waves

scholarly journals Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 263
Author(s):  
Qingwen Rao ◽  
Guanjun Xu ◽  
Pengfei Wang ◽  
Zhengqi Zheng
Keyword(s):  
Dusty Plasma ◽  
Dust Particle ◽  
Matrix Method ◽  
Collision Frequency ◽  
Scattering Matrix ◽  
Ceramic Substrate ◽  
Propagation Characteristics ◽  
Propagation Properties ◽  
Scattering Matrix Method ◽  
Thz Waves

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.

Propagation Properties of Terahertz Waves in a Time-Varying Dusty Plasma Slab Using FDTD

2015 ◽  
Vol 43 (12) ◽  
pp. 4182-4186 ◽  
Author(s):  
Maoyan Wang ◽  
Mengxia Yu ◽  
Zhitao Xu ◽  
Guiping Li ◽  
Baojun Jiang ◽  
...  
Keyword(s):  
Dusty Plasma ◽  
Time Varying ◽  
Terahertz Waves ◽  
Plasma Slab ◽  
Propagation Properties

scholarly journals Propagation Characteristics of Oblique Incident Terahertz Wave in Nonuniform Dusty Plasma

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yunhua Cao ◽  
Haiying Li ◽  
Zhe Wang ◽  
Zhensen Wu
Keyword(s):  
Dusty Plasma ◽  
Terahertz Wave ◽  
Dust Particles ◽  
Number Density ◽  
Propagation Characteristics ◽  
Absorption Coefficients ◽  
Reflection And Transmission ◽  
Transmission Coefficients ◽  
Propagation Matrix ◽  
Transmission And Absorption

Propagation characteristics of oblique incident terahertz wave from the nonuniform dusty plasma are studied using the propagation matrix method. Assuming that the electron density distribution of dusty plasma is parabolic model, variations of power reflection, transmission, and absorption coefficients with frequencies of the incident wave are calculated as the wave illuminates the nonuniform dusty plasma from different angles. The effects of incident angles, number density, and radius of the dust particles on propagation characteristics are discussed in detail. Numerical results show that the number density and radius of the dust particles have very little influences on reflection and transmission coefficients and have obvious effects on absorption coefficients. The terahertz wave has good penetrability in dusty plasma.

Sign in / Sign up

Export Citation Format

Share Document