Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems.

ABSTRACT: Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However, controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and realize a novel architecture for wireless communicat

SUBMITTER: Zhao J 

PROVIDER: S-EPMC8291514 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature