Homogenization of metasurfaces formed by random resonant particles in periodical lattices

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Technical University of Denmark
  • St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)

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.

Details

Original languageEnglish
Article number205127
Pages (from-to)1-9
JournalPhysical Review B
Volume93
Issue number20
Publication statusPublished - 16 May 2016
MoE publication typeA1 Journal article-refereed

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