Add Yahoo as a preferred source to see more of our stories on Google. The IDF on Wednesday announced that its Iron Beam laser defense system has shot down dozens of aerial threats during the war May ...

Add Yahoo as a preferred source to see more of our stories on Google. A delegate examines an assault weapon at the Defence and Security Equipment International exhibition - Getty Equipped with ...

Physicists in Australia and France have worked out a way to entangle the spatial properties of two laser beams for the first time. Such entangled beams could someday be used to make optical ...

Unlike fictional laser swords, real laser beams do not interact with each other when they cross -- unless the beams meet within a suitable material allowing for nonlinear light-matter interaction. In ...

The sighting, reported by the Air Traffic Control (ATC) tower, led the Airport Operations Centre (APOC) to alert the local ...

Metasurfaces offer an innovative approach to controlling light. Courtesy: P Genevet Vertical-cavity surface-emitting lasers (VCSELs) have emerged as a highly versatile light source over the past 30 ...