학술논문

Bound States in the Continuum and Non-Hermitian Engineering of Hybrid TE-TM Resonances in Periodic Metasurfaces
Document Type
Conference
Source
2023 Seventeenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) Artificial Materials for Novel Wave Phenomena (Metamaterials), 2023 Seventeenth International Congress on. :X-165-X-167 Sep, 2023
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Couplings
Optical losses
Nanoparticles
Metasurfaces
Metamaterials
Slabs
Photonics
Language
ISSN
2573-2706
Abstract
We show that hybrid TE-TM collective resonances in periodic metasurfaces can form perfect bound states in the continuum (BICs) despite being strongly coupled to lossy meta-atoms. Furthermore, the non-Hermitian character of the studied system can be used to realize exceptional points and robust degeneracies of the hybrid bright and dark eigenstates.