Electromagnetic realization of topological states in one-dimensional arrays of bianisotropic particles

We propose a strategy to realize one-dimensional electromagnetic topologically protected states by modifying on-site properties of particles keeping linear equidistant geometry of the array. Based on the discrete dipole approximation, we demonstrate the existence of non-trivial topology of photonic...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1482; no. 1; pp. 12040 - 12044
Main Authors Bobylev, D A, Smirnova, D A, Baryshnikova, K V, Gorlach, M A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2020
Subjects
Arrays
Magnetic dipoles
Magnetic resonance
Physics
Topology
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Summary:We propose a strategy to realize one-dimensional electromagnetic topologically protected states by modifying on-site properties of particles keeping linear equidistant geometry of the array. Based on the discrete dipole approximation, we demonstrate the existence of non-trivial topology of photonic bands and mapping to the Su-Schrieffer-Heeger model. We investigate the properties of an isolated ceramic disk to optimize its electromagnetic response, namely, the splitting of electric and magnetic dipole resonances due to bianisotropy. Using full-wave simulations we demonstrate the presence of the topological interface state in the microwave spectral range.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1482/1/012040