2020/06/12 by Rfaqat Ali
Engineering · Materials Science · Physics and Astronomy · #Composite number #Metamaterial #Metamaterials and Metasurfaces Applications #Mie scattering #Nanophotonics #Photonic Crystals and Applications #Photonic metamaterial #Plasmonic and Surface Plasmon Research #Refractive index #Scattering #Transformation optics #physics.optics
paper · pdf · doi:10.1088/2040-8986/ab9d14
7 pages, 3 Figures
arxiv created 2020/06/12 · openalex publication_date 2020/06/16 · openalex created_date 2020/06/19 · arxiv updated 2020/08/26 · openalex updated_date 2026/08/05
Abstract Achieving zero backward scattering (ZBS) and zero forward scattering (ZFS), i.e. the so-called first and second Kerker’s conditions respectively, by sphere spherical particles is considered to be impossible due to the unavailability of naturally occurring magnetic materials in the visible frequency range. We report theoretical modeling to design composite metamaterials that present large optical magnetic permeability in the visible frequency range by employing Mie scattering theory and extended Maxwell Garnett theory. We numerically show that a careful selection of constituents of a composite metamaterial one can obtain metamaterials with sufficiently large artificial permeability that eventually provides the Kerker’s criterion to achieve the Kereker’s conditions. By taking realistic material parameters, we demonstrate that the metamaterials exhibiting ZBS and ZFS have a smaller imaginary part of the refractive index than metallic structures that pave a path to design high-performance nanophotonic devices.