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Communication Dans Un Congrès Année : 2023

[Invited] Topological Tamm states based on flat band symmetry inversion

Résumé

We study topological Tamm states at the interface between two comb-like photonic or phononic crystals based on a new mechanism of band inversion symmetry due to the existence of flat bands. Several arguments such as the Zak phase or the phase of the reflection coefficients support the topological nature of the interface states. The analytical results are well reproduced by experiments using coaxial cables.
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Dates et versions

hal-04278791 , version 1 (10-11-2023)

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  • HAL Id : hal-04278791 , version 1

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Soufyane Khattou, Amina Rezzouk, Madiha Amrani, Mohamed El Ghafiani, El Houssaine El Boudouti, et al.. [Invited] Topological Tamm states based on flat band symmetry inversion. 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META23, Session 2A44 Symposium II: New Trends in Nanophotonics and Advanced Materials, Jul 2023, Paris, France. ⟨hal-04278791⟩
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