Open AccessSO-FDTD method of analyzing the reflection and transmission coefficient of weakly ionized dusty plasma layer
Author(s) -
Linqian Li,
Yanxiang Shi,
Wang Fei,
Bing Wei
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.125201
Subject(s) - dusty plasma , finite difference time domain method , plasma , reflection coefficient , reflection (computer programming) , physics , ionization , transmission coefficient , permittivity , atomic physics , radius , computational physics , materials science , optics , transmission (telecommunications) , ion , dielectric , quantum mechanics , electrical engineering , computer security , computer science , programming language , engineering
The complex permittivity of weakly ionized dusty plasma is presented as a fractional polynomial in j. A frequency-domain constitutive relation of weakly ionized dusty plasma is given by shift operator finite-difference time-domain (SO-FDTD) method in time domain. Also the recurrence relation on the electromagnetic properties of weakly ionized dusty plasma is deduced by the SO-FDTD. The reflection and transmission coefficients of the weakly ionized dusty plasma layer are calculated, and the influences which is caused by the change of the dust particle concentration and radius on reflection and transmission coefficients are also analyzed by the SO-FDTD method. The result shows that the reflection coefficient in the presence of dust particles is smaller than in the absence of dust particles, while the transmission coefficient in the former case is larger than in the latter case. Besides, it is found that the reflection coefficient decreases as the concentration or radius of dust particle increases.