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Being able to see light and detect radiation is of utmost importance at any frequency. While this challenge has been solved ...

The terahertz (THz) band of the electromagnetic spectrum holds immense promise for next-generation technologies, including high-speed wireless communication, advanced encryption, and medical imaging.

A new material platform has enabled scientists to create photon pairs whose entanglement can be tuned from a layer thinner than a human hair. The photon pairs are created by a metasurface made of ...

Fig. 1. Conceptual illustration of the proposed low-profile self-stealth programmable metasurface. The metasurface exhibits radiation and stealth characteristics in the in-band co-polarization. It ...

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

The metasurface achieves two-dimensional beam scanning of ±45° at 5.2 GHz with a peak gain of 17.23 dBi while reducing radar visibility across five frequency bands. At 0.065 wavelengths thick, the ...