Topological Surface States at C4 Rotational Symmetry Photonic Crystals Bounded by Air

Anna C. Tasolamprou,Maria Kafesaki,Costas M. Soukoulis, Eleftherios N. Economou,Thomas Koschny

2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)（2022）

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摘要

We present an approach for manipulating topological states sustained at free space interfaces. Eigenvalue analysis corroborated by direct scattering simulations demonstrate the topological invariant jump, the mode's unidirectionalilty and immunity to defects and back-scattering. © 2022 The Author(s)

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关键词

Surface States,Topological States,Topological Surface States,Magnetic Field,Band Gap,Free Space,Band Structure,Point Source,Topological Properties,Fourier Analysis,Topological Insulators,Photonic Circuits,Chern Number,Bulk Behavior,Dispersion Calculations

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