Bloch-mode analysis for effective parameters restoration

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

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We utilize the Bloch-mode analysis of periodic composite structures to introduce an approach for retrieving effective parameters of homogenized metamaterials. In the case of single-mode propagation we can restore a complex effective refractive index with a high accuracy. By further employing surface or volume averaging of the electromagnetic fields of the dominating (fundamental) Bloch modes we are able to determine the Bloch and wave impedances, leading to wave and material effective parameters, respectively. The approach is demonstrated on several examples. We focus our discussion on the nature of microfields returned by Maxwell's solvers, showing that ignoring of difference between magnetic strength and induction lead to incorrect determination of the Poynting vector.

    Original languageEnglish
    Title of host publicationFifth International Workshop on Theoretical and Computational Nano-Photonics, TaCoNa-Photonics 2012
    Pages140-142
    Number of pages3
    DOIs
    Publication statusPublished - 2012
    Event5th International Workshop on Theoretical and Computational Nano-Photonics, TaCoNa-Photonics 2012 - Bad Honnef, Germany
    Duration: 24 Oct 201226 Oct 2012

    Publication series

    NameAIP Conference Proceedings
    Volume1475
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    Conference5th International Workshop on Theoretical and Computational Nano-Photonics, TaCoNa-Photonics 2012
    Country/TerritoryGermany
    CityBad Honnef
    Period24/10/1226/10/12

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