News tagged with light beam

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Getting a better measure of spin with diamond

Diamonds are one of the most coveted gemstones. But while some may want the perfect diamond for its sparkle, physicists covet the right diamonds to perfect their experiments. The gem is a key component in a novel system that ...

dateMay 05, 2016 in General Physics
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A tiny switch for a few particles of light

The Jedi knights of the Star Wars saga are engaged in an impossible fight. This does not result from the superiority of the enemy empire, but from physics because laser swords cannot be used for fighting like metallic blades: ...

dateApr 29, 2016 in Optics & Photonics
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Laser beams with a 'twist'

(University of the Witwatersrand) Using geometric phase inside lasers for the first time, researchers find a way to change the orbital angular momentum of laser beams.

dateMar 15, 2016 in Optics & Photonics
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X-ray studies search for Ebola cure

In experiments carried out partly at the Department of Energy's SLAC National Accelerator Laboratory, scientists have determined in atomic detail how a potential drug molecule fits into and blocks a channel in cell membranes ...

dateMar 15, 2016 in General Physics
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How does an experiment at LIGO actually work?

Gravitational waves are mysterious ripples in the fabric of space and time that travel across our universe at the speed of light. Predicted by Einstein exactly 100 years ago, a number of experiments have been searching for ...

dateFeb 11, 2016 in Astronomy
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