Recursive Calculation of the Optical Response of Multicomponent Metamaterials

Abstract

We develop a recursive computational procedure to efficiently calculate the macroscopic dielectric function of multi-component metamaterials of arbitrary geometry and composition within the long wavelength approximation. Although the microscopic response of the system might correspond to non-Hermitian operators, we develop a representation of the microscopic fields and of the response, and we introduce an appropriate metric that makes all operators symmetric. This allows us to use a modified Haydock recursion, introducing complex Haydock coefficients that allow an efficient computation of the macroscopic response and the microscopic fields. We test our procedure comparing our results to analytical ones in simple systems, and verifying they obey a generalized multicomponent Keller's theorem and the Mortola and Stefé's theorem for four component metalic and dielectric systems.

arXiv comment10 pages, 4 figures. Phys. Status Solidi B (2020)

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