Strongly resonant silicon slot metasurfaces with symmetry-protected bound states in the continuum

• Published in: Optics express Vol. 29; no. 7; pp. 10374 - 10385
• Main Authors: Algorri, J F, Dell'Olio, F, Roldán-Varona, P, Rodríguez-Cobo, L, López-Higuera, J M, Sánchez-Pena, J M, Zografopoulos, D C
• Format: Journal Article
• Language: English
• Published: United States 29.03.2021

In this work, a novel all-dielectric metasurface made of arrayed circular slots etched in a silicon layer is proposed and theoretically investigated. The structure is designed to support both Mie-type multipolar resonances and symmetry-protected bound states in the continuum (BIC). Specifically, the...