Unlocking the out-of-plane dimension for photonic bound states in the continuum to achieve maximum optical chirality.

ABSTRACT: The realization of lossless metasurfaces with true chirality crucially requires the fabrication of three-dimensional structures, constraining experimental feasibility and hampering practical implementations. Even though the three-dimensional assembly of metallic nanostructures has been demonstrated previously, the resulting plasmonic resonances suffer from high intrinsic and radiative losses. The concept of photonic bound states in the continuum (BICs) is instrumental for tailoring radiative losses in diverse geometries, especially when implemented using lossless dielectrics, but applications have so far been limited to planar structures. Here, we introduce a novel nanofabrication approach to unlock the height of individual resonators within all-dielectric metasurfaces as an accessible par

SUBMITTER: Kuhner L 

PROVIDER: S-EPMC10570380 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature