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Laser

Military

BAE proposes smart countermeasure system to protect US airborne forces

BAE Systems has submitted a proposal to the US Army’s Common Infrared Countermeasure (CIRCM) program. Once operational, BAE's system will safeguard rotary and light-fixed wing aircraft, increasing survivability against the threat posed by infrared missiles. CIRCM is designed to work alongside an infrared warning system and a flare dispenser – a commonly-used countermeasure that confuses a guided missile into seeking the heat from the flare rather than that emitted by the target aircraft. Read More

Drones

Laser defense system zaps drones out of the sky

Drones cruising through Chinese airspace may be set for rude awakening, with local scientists reportedly developing a laser capable of shooting the vehicles out of the sky. Chinese media are reporting that researchers from the China Academy of Engineering Physics have been working on a laser defense system to safeguard against the proliferating technology, and its early testing has been largely viewed as a success. Read More

Space

Laser-propulsion could give space rockets a serious boost

Russian scientists have proposed a novel way to accelerate a spaceship while in flight – firing a ground-based laser up its backside. The new technique uses a plasma flow caused by laser ablation to increase the exhaust efficiency of a traditional rocket propulsion system, and could theoretically accelerate an aircraft beyond Mach 10. Read More

Science

What "Star Wars" laser bolts would actually look like

It's no secret that Star Wars is full of scenes that defy the laws of physics. From space battles inspired by WW I and II dogfights to beams of light clashing in lightsaber duels. The laser bolts fired from Han Solo's trusty blaster and Luke's X-wing also play by their own rules, traveling much slower than the speed of light and being perfectly visible in the vacuum of space. Researchers in Poland have now created a film to show what a laser bolt would actually look like.Read More

Science

Reversible tractor beam can repel and attract objects

We're still a far cry from Star Trek's ship-towing and repelling technology, but laser physicists at the Australian National University (ANU) have built a tractor beam that can repel and attract objects. The beam moved spherical glass shells one fifth of a millimeter in diameter across a distance of up to 20 centimeters (7.87 in), which is around 100 times further than previous experiments at this scale, using only a single hollow laser beam that's bright around the edges and dark in its center.Read More

Science

NIST's new laser technology allows high-definition 3D mapping at a distance

Using an enhanced LADAR (Laser Detection And Ranging) system, researchers at the National Institute of Standards and Technology (NIST) have created a long-range, laser-based imaging device that can generate high-definition 3D maps of objects at distances of up to 10.5 m (35 ft). The technology could find applications in precision machining and assembly, as well as in forensics where it could map evidence non-destructively.Read More

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