Homogenization of metasurfaces formed by random resonant particles in periodical lattices

Andrei Andryieuski, Andrei Lavrinenko, Mihail Petrov, Sergei A. Tretyakov

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    Abstract

    In this paper we suggest a simple analytical method for description of electromagnetic properties of a geometrically regular two-dimensional subwavelength arrays (metasurfaces) formed by particles with randomly fluctuating polarizabilities. We propose an analytical homogenization method applicable for normal wave incidence on particle arrays with dominating electric dipole responses and validate it with numerical point-dipole modeling using the supercell approach. We demonstrate that fluctuations of particle polarizabilities lead to increased diffuse scattering despite the subwavelength lattice constant of the array.
    Original languageEnglish
    Article number205127
    JournalPhysical Review B
    Volume93
    Issue number20
    ISSN0163-1829
    DOIs
    Publication statusPublished - 2016

    Keywords

    • physics.optics
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials
    • PHYSICS,
    • METAMATERIAL ABSORBER
    • OPTICAL METAMATERIALS

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