A lens-free system produces sharp mid-infrared images even in low light and over long distances, creating new opportunities ...

After discussing the quirks in 3D modeling software, where a laser beam is treated as a solid object that can cast a shadow, scientists decided to experiment in real life — and found that laser beams ...

A 3D printer that uses lasers to build up an object in any order, rather than layer by layer, could produce more advanced designs than is currently possible. Existing 3D printers work by depositing ...