Super-reflector enabled by non-interleaved spin-momentum-multiplexed metasurface.

ABSTRACT: Electromagnetic wave multiplexing, especially for that occurring at different incidences (spatial-frequency multiplexing), is pivotal for ultrathin multifunctional interfaces and high-capacity information processing and communication. It is yet extremely challenging based on passive and compact wave elements, since the wave excitation and scattering channels are exclusively coupled through gradient phases and hence momentum matching condition at the interface. Here, we propose a spin-momentum multiplexed paradigm called a super-reflector enabling on-demand control of both retroreflections and anomalous reflections using a non-interleaved single-celled metasurface. By multiplexing four channels connecting two spin states excited onto each input of three spatial frequencies, a total of twelv

SUBMITTER: Xu HX 

PROVIDER: S-EPMC10039034 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature