FETD Study of theWave Propagation in Chiral Metamaterials  

作　　者：Lei Yang Fuhao Liu Wei Yang 

机构地区：[1]Faculty of Information Technology,Macao University of Science and Technology,Macao,China [2]School of Mathematics and Computational Science,Xiangtan University,Xiangtan,Hunan 411105,China [3]Hunan Key Laboratory for Computation and Simulation in Science and Engineering and School of Mathematics and Computational Science,Xiangtan University,Xiangtan,Hunan 411105,China

出　　处：《Advances in Applied Mathematics and Mechanics》2021年第1期191-202,共12页应用数学与力学进展（英文）

基　　金：supported partially by the Science and Technology Development Fund,Macao SAR(0070/2019/A2)and National Natural Science Foundation of China,Grant No.11701598,Scientific Research Fund of Hunan Provincial Science and Technology Department(No.2018WK4006);NSFC Projects No.11771371,and Key Project of Hunan Education Department No.18A056.

摘　　要：In this paper,we propose a finite element time-domain(FETD)method for the Maxwell’s equations in chiral metamaterials(CMMs).The time-domain model equations are constructed by the auxiliary differential equations(ADEs)method.The source excitation method entitled total-field and scattered-field(TF/SF)decomposition technique is applied to FETD method for the first time in simulating the propagation of electromagnetic wave in CMMs,based on which a unified ADE-FETD-UPMLTF/SF scheme is proposed to simulate the wave in CMMs.The following properties of CMMs can be observed successfully from the numerical experiments based on our method,i.e.,the ability of the polarization rotation,and the negative phase velocity.The amplitude of reflected wave can effectively be controlled by the physical parameters of CMMs.

关 键 词：Maxwell’s equations finite element time-domain(FETD) chiral metamaterials(CMMs). 

分 类 号：O17[理学—数学]