Parallel wave-based analog computing using metagratings.

ABSTRACT: Wave-based signal processing has witnessed a significant expansion of interest in a variety of science and engineering disciplines, as it provides new opportunities for achieving high-speed and low-power operations. Although flat optics desires integrable components to perform multiple missions, yet, the current wave-based computational metasurfaces can engineer only the spatial content of the input signal where the processed signal obeys the traditional version of Snell's law. In this paper, we propose a multi-functional metagrating to modulate both spatial and angular properties of the input signal whereby both symmetric and asymmetric optical transfer functions are realized using high-order space harmonics. The performance of the designed compound metallic grating is validated through s

SUBMITTER: Rajabalipanah H 

PROVIDER: S-EPMC9125804 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature