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Conferences > CLEOPR > 2022 > CWP16G > CWP16G_03

Topological surface states at C4 rotational symmetry photonic crystals bounded by air

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

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Abstract

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 IEEE

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