Propagation of terahertz waves in a dust acoustic wave

被引：2
|
作者：
Li, Peng-Fei [1 ]
Du, Cheng-Ran [1 ,2 ]
机构：
[1] Donghua Univ, Coll Sci, Shanghai 201620, Peoples R China
[2] Minist Educ, Magnet Confinement Fus Res Ctr, Shanghai 201620, Peoples R China
来源：
PHYSICS LETTERS A | 2020年 / 384卷 / 27期
基金：
中国国家自然科学基金;
关键词：
Dusty plasma; Dust acoustic wave; Terahertz wave; VARIABLE CHARGES; PLASMA;
D O I：
10.1016/j.physleta.2020.126660
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The propagation of terahertz waves in a dust acoustic wave is investigated numerically. By assuming a sinus profile of the dust number density in the dust acoustic waves, the transmission properties are calculated using finite difference time domain method. It shows that the dust acoustic wave can function similarly as a Bragg filter to block the terahertz waves of a certain wavelength. The bandwidth of the filter depends on the density profile of the dust acoustic wave. (C) 2020 Published by Elsevier B.V.
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页数：4
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