Sat, 28 Jun 2025 01:13:44 +0000

Scientists created metasurface holograms that reconstruct up to 118 images using ultranarrow 2 nm wavelength and vortex beam multiplexing. With transformer AI-designed phase-only holograms and precise k-vector filtering, they enable ultra-secure visual cryptography—achieving 2500× higher info rates than past methods. A breakthrough for holographic encryption, 3D displays, and optical AI. This paves the way for compact, high-capacity optical devices.