A programmable metasurface stamps temporal codes onto ambient radio waves, enabling passive radar to detect and track drones ...

Metasurfaces are two-dimensional (2D), nanoengineered surfaces that interact strongly with electromagnetic waves and can control light with remarkable precision. These ultra-thin layers can be used to ...

Figure | Working principle of the intelligent metasurface. Concept and workflow of the no-code multimodal OCT platform. An illustrative schematic demonstrating the primary capabilities of the ...

a, structure of LED based on PeNCs without and with passivation. Schematic illustrates that CP could passivate defects, in which the defects may trap carriers (e.g. holes, electrons), decrease exciton ...