Light-based quantum technologies, such as quantum communication and photonic quantum computing, require reliable sources of individual photons and, ideally, pairs of entangled photons. Semiconductor ...

High-energy lasers can burn drones in the sky like a blowtorch. But they can be stymied by weather, and making them at scale will be a challenge.

Researchers have built a microscopic 3D-printed optical device that funnels light from 37 separate multimode semiconductor lasers into a single optical fiber, merging 222 distinct spatial modes; the ...

To unlock materials of the future, including better photocatalysts or light-switchable superconductors, researchers need to ...

Futuristic laser weapons are now deployed with some militaries and are being demonstrated by Ukrainian startups. Industry ...