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Laser


— Science

World's first white laser demonstrated

By - August 4, 2015 3 Pictures

Incandescent bulbs, LEDs, and CFLs may soon have to budge up because a new lighting technology is in town – white lasers. Using nanotechnology to create a bespoke semiconducting material, a team of scientists at Arizona State University has developed a laser that can produce white light that is brighter and more efficient than LEDs.

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— Medical

Laser device may soon non-invasively monitor diabetics' glucose levels

By - July 17, 2015 2 Pictures

In order to monitor their blood glucose levels, diabetics typically have to perform painful and inconvenient finger-prick blood tests – in some cases, several times a day. Using an implantable glucose-monitoring sensor is one alternative, although it must be surgically installed and subsequently removed for replacement. Another option may be on the way, however, in the form of a device that simply shines a laser on the user's finger.

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— Science

The amazing technicolor liquid nanolaser

By - April 29, 2015
A new nanoscale plasmon laser developed at Northwestern University changes color in real time through a process as simple as swapping one liquid dye for another. The scientists responsible for the technology claim this is the world's first liquid nanoscale laser, and it could find uses in medical diagnostics as well as military or security applications. Read More
— Space

Lasers could be used to zap orbital debris

By - April 17, 2015
Orbital debris is increasingly becoming a hazard to satellites and other spacecraft, which is why various groups have proposed concepts such as gas clouds, nets and sails for collecting it. While those approaches could capture larger objects, the problem of smaller pieces of debris – which whiz around the Earth like bullets – would remain. That's why an international group of scientists is developing a system that could shoot those bits down with a laser. Read More
— Science

World’s most powerful laser diode arrays deployed

By - March 15, 2015 2 Pictures
The High-Repetition-Rate Advanced Petawatt Laser System (HAPLS) under construction in the Czech Republic is designed to generate a peak power of more than 1 quadrillion watts (1 petawatt, 1015 watts). The key component to this instrument – the laser "pump" – will be a set of solid-state laser diode arrays recently constructed by Lawrence Livermore National Laboratory (LLNL). At peak power, this electronic assemblage develops a staggering 3.2 million watts of power and are the most powerful laser diode arrays ever built. Read More
— Bicycles

Erembald bike is laser-cut from stainless steel

By - March 12, 2015 6 Pictures
The 2015 North American Handmade Bicycle Show may have just wrapped up, but that doesn't mean we're no longer hearing about interesting small-batch bikes. Belgian industrial designer Tobias Knockaert recently told us about his stainless steel Erembald bike, that he's producing along with partner Karel Vincke. In order to keep prices down, its frame is cut by lasers and put together like a puzzle. Read More
— Science

Cesium atoms get a shake-up to create excitation in superfluid

By - February 24, 2015
Helium-4 superfluid is a fascinating substance. With properties that seemingly defy normal physics, it leaks straight through glass, bubbles up out of containers, flows around objects and even climbs up walls. As if superfluid helium-4 was not strange enough, in 1941 it was also predicted that it should contain an exotic, particle-like excitation – a quasiparticle – called a roton. After many years of trying to verify this prediction, researchers at the University of California now claim to have successfully created a roton structure in an atomic superfluid of cesium-133. Read More
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