Bloch-mode analysis for retrieving effective parameters of metamaterials

Andrei Andryieuski, Sangwoo Ha, Andrey A. Sukhorukov, Yuri S. Kivshar, Andrei Lavrinenko

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We introduce an approach for retrieving effective parameters of metamaterials based on the Bloch-mode analysis of quasiperiodic composite structures. We demonstrate that, in the case of single-mode propagation, a complex effective refractive index can be assigned to the structure, being restored by our method with a high accuracy. We employ both surface and volume averaging of the electromagnetic fields of the dominating (fundamental) Bloch modes to determine the Bloch and wave impedances, respectively. We discuss how this method works for several characteristic examples, and demonstrate that this approach can be useful for retrieval of both material and wave effective parameters of a broad range of metamaterials.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Issue number3
Pages (from-to)035127
Publication statusPublished - 2012

Bibliographical note

Copyright (2012) American Physical Society.

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