Crafting chirality in three dimensions via a novel fabrication technique for bound states in the continuum metasurfaces

Light Sci Appl. 2024 Feb 5;13(1):45. doi: 10.1038/s41377-023-01368-z.

Abstract

An additional deposition step was added to a multi-step electron beam lithographic fabrication process to unlock the height dimension as an accessible parameter for resonators comprising unit cells of quasi-bound states in the continuum metasurfaces, which is essential for the geometric design of intrinsically chiral structures.