2022/02/22 by Zuxian He, He, Zuxian, Daniel A. Bobylev +9 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Applied Physics (physics.app-ph) #Computer science #Equidistant #FOS: Physical sciences #Geometry #Homogeneous space #Mathematics #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Metamaterials and Metasurfaces Applications #Optics #Optics (physics.optics) #Photonic Crystals and Applications #Photonics #Physics #Quantum optics and atomic interactions #Reconfigurability #Symmetry (geometry) #Telecommunications #Topology (electrical circuits) #cond-mat.mes-hall #physics.app-ph #physics.optics
paper · pdf · doi:10.48550/arxiv.2202.11505
arxiv created 2022/02/22 · openalex publication_date 2022/02/22 · arxiv updated 2022/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Topological photonics promotes a novel approach to resilient light manipulation by exploiting spatio-temporal symmetries of the system and dual symmetry of electromagnetic field. Various prospective device applications pose the need to flexibly control robust field localization associated with topological modes. Here we design a topological array of resonant dielectric meta-atoms with bianisotropic response induced by a spatial symmetry reduction. Mutual orientation of the designed meta-atoms encodes a staggered bianisotropy pattern capable of trapping topological states in a one-dimensional array containing a small number of particles. We show that the topological interface state can be tailored by the rotation of coaxial bianisotropic particles arranged in an equidistant lattice. Our experimental implementation based on ceramic horseshoe-shaped disks demonstrates remarkable reconfigurability of electromagnetic topological states.