title: Direct dark modes excitation in bi-layered enantiomeric atoms-based metasurface through symmetry matching.
abstract: We provide evidence for the mechanism of direct dark mode excitation in a metasurface composed of bi-layered Z-shaped enantiomeric meta-atoms. The electromagnetic behavior of the structure is investigated through both numerical simulations and experimental measurements in the microwave domain. We demonstrate direct field coupling excitation of second higher order electric mode under normal incidence based only on symmetry matching conditions. The proposed approach provides a better flexibility in engineering dark mode resonances that do not rely on hybridization mechanism and presents important advantages for multi-spectral sensor applications.
authors.forename: Elena
authors.initials: E
authors.lastname: Bochkova
authors.forename: Shah Nawaz
authors.initials: SN
authors.lastname: Burokur
authors.forename: André
authors.initials: A
authors.lastname: de Lustrac
authors.forename: Anatole
authors.initials: A
authors.lastname: Lupu