Angular momentum holography via a minimalist metasurface for optical nested encryption.

ABSTRACT: Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light, demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular momentum (SAM) dimensions have been respectively explored as the independent carrier for information multiplexing. However, fully managing these two intrinsic properties in information multiplexing remains elusive. Here, we propose the concept of angular momentum (AM) holography which can fully synergize these two fundamental dimensions to act as the information carrier, via a single-layer, non-interleaved metasurface. The underlying mechanism relies on independently controlling the two spin eigenstates and arbitrary overlaying them in eac

SUBMITTER: Yang H 

PROVIDER: S-EPMC10050323 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature