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Bloch-mode analysis for effective parameters restoration

  • Andrei Lavrinenko
  • , Andrei Andryieuski
  • , Sangwoo Ha
  • , Andrey A. Sukhorukov
  • , Yuri S. Kivshar
    • Australian National University

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-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 publicationAIP Conference Proceedings
    Volume1475
    PublisherAmerican Institute of Physics
    Publication date2012
    Pages140-142
    ISBN (Print)978-0-7354-1084-8
    DOIs
    Publication statusPublished - 2012
    Event5th International Workshop on Theoretical and Computational Nano-Photonics: TaCoNa-Photonics 2012 - Bad Honnef, Germany
    Duration: 24 Oct 2012 → 26 Oct 2012
    http://www.tacona-photonics.org/

    Conference

    Conference5th International Workshop on Theoretical and Computational Nano-Photonics
    Country/TerritoryGermany
    CityBad Honnef
    Period24/10/2012 → 26/10/2012
    Internet address
    SeriesA I P Conference Proceedings Series
    ISSN0094-243X

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