2014•Advanced materials researchRequires access

Modified Unsplitted Perfectly Matched Layer Absorbing Boundary Conditions for Truncating Anisotropic Medium

Zhi Chao Cai, Yang Li, Hao Chuan Deng, Xiao Wei, Hong cheng Yin

Abstract

To simulate Electromagnetic wave propagation in anisotropic media, absorbing boundary conditions are needed to truncate the computation domains. Based on the finite difference time domain method in anisotropic medium, the implementation of the modified nearly perfectly matched layer absorbing boundary conditions for truncating anisotropic medium is presented. By using the partial derivatives of space variables stretched-scheme in the coordinate system, the programming complexity is reduced greatly. According to one dimensional numerical simulation analysis, the modified nearly perfectly matched layer absorbing boundary condition is validated.

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Key concepts: Perfectly matched layer, Anisotropy, Computation, Boundary (topology), Mathematical analysis, Boundary value problem, Domain (mathematical analysis), Layer (electronics)