Planar chiral metasurfaces with maximal and tunable chiroptical response driven by bound states in the continuum
Planar chiral metasurfaces with maximal and tunable chiroptical response driven by bound states in the continuum
Optical metasurfaces with high quality factors (Q-factors) of chiral resonances can boost substantially light-matter interaction for various applications of chiral response in ultrathin, active, and nonlinear metadevices. However, current approaches lack the flexibility to enhance and tune the chirality and Q-factor simultaneously. Here, we suggest a design of chiral metasurface …