Well-Posedness and the Multiscale Algorithm for Heterogeneous Scattering of Maxwell's Equations in Dispersive Media
Year: 2021
Author: Yongwei Zhang, Liqun Cao, Dongyang Shi
International Journal of Numerical Analysis and Modeling, Vol. 18 (2021), Iss. 2 : pp. 235–264
Abstract
This paper discusses the well-posedness and the multiscale algorithm for the heterogeneous scattering of Maxwell's equations in dispersive media with a periodic microstructure or
with many subdivided periodic microstructures. An exact transparent boundary condition is developed to reduce the scattering problem into an initial-boundary value problem in heterogeneous
materials. The well-posedness and the stability analysis for the reduced problem are derived. The
multiscale asymptotic expansions of the solution for the reduced problem are presented. The convergence results of the multiscale asymptotic method are proved for the dispersive media with a
periodic microstructure. A multiscale Crank-Nicolson mixed finite element method (FEM) is proposed where the perfectly matched layer (PML) is utilized to truncate infinite domain problems.
Numerical test studies are then carried out to validate the theoretical results.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/2021-IJNAM-18710
International Journal of Numerical Analysis and Modeling, Vol. 18 (2021), Iss. 2 : pp. 235–264
Published online: 2021-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 30
Keywords: Maxwell's equations dispersive medium well-posedness the multiscale asymptotic expansion finite element method.