Propagation of electromagnetic waves in a weakly ionized dusty plasma. (7th October 2015)

• Record Type: Journal Article
• Authors: Jia, Jieshu; Yuan, Chengxun; Gao, Ruilin; Wang, Ying; Liu, Yaoze; Gao, Junying; Zhou, Zhongxiang; Sun, Xiudong; Wu, Jian; Li, Hui; Pu, Shaozhi
• Is Part Of: Journal of physics. Volume 48:Number 46(2015)
• Publication Date: 2015-10-07
• Subjects: dusty plasmas -- electromagnetic waves -- charging effects; Physics -- Periodicals; 530
• DOI: 10.1088/0022-3727/48/46/465201
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Propagation properties of electromagnetic (EM) waves in weakly ionized dusty plasmas are the subject of this study. Dielectric relation for EM waves propagating at a weakly ionized dusty plasma is derived based on the Boltzmann distribution law while considering the collision and charging effects of dust grains. The propagation properties of EM energy in dusty plasma of rocket exhaust are numerically calculated and studied, utilizing the parameters of rocket exhaust plasma. Results indicate that increase of dust radius and density enhance the reflection and absorption coefficient. High dust radius and density make the wave hardly transmit through the dusty plasmas. Interaction enhancements between wave and dusty plasmas are developed through effective collision frequency improvements. Numerical results coincide with observed results by indicating that GHz band wave communication is effected by dusty plasma as the presence of dust grains significantly affect propagation of EM waves in the dusty plasmas. The results are helpful to analyze the effect of dust in plasmas and also provide a theoretical basis for the experiments.