Bound states in the continuum in the multipole approximation

Sergey Gladyshev; Artem Shalev; Kristina Frizyuk; Konstantin Ladutenko; Andrey Bogdanov

doi:10.1117/12.2621078

24 May 2022 Bound states in the continuum in the multipole approximation

Sergey Gladyshev, Artem Shalev, Kristina Frizyuk, Konstantin Ladutenko, Andrey Bogdanov

Proceedings Volume 12130, Metamaterials XIII; 121300G (2022) https://doi.org/10.1117/12.2621078
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Conference Poster

Abstract

Here we develop a theory of bound states in the continuum (BICs) in multipolar lattices – periodic arrays of resonant multipoles. We show that off-Γ BIC can be pinned in the k-space in this multipole approximation. The developed approach set a direct relation between the topological charge of BIC and the asymptotic behavior of Q-factor of the radiative modes in its vicinity.

Citation Download Citation

Sergey Gladyshev, Artem Shalev, Kristina Frizyuk, Konstantin Ladutenko, and Andrey Bogdanov "Bound states in the continuum in the multipole approximation", Proc. SPIE 12130, Metamaterials XIII, 121300G (24 May 2022); https://doi.org/10.1117/12.2621078

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