News tagged with light beams

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Scientists twist light to send data

(Phys.org) -- A multi-national team led by USC with researchers hailing from the U.S., China, Pakistan and Israel has developed a system of transmitting data using twisted beams of light at ultra-high speeds – up to ...

dateJun 25, 2012 in Optics & Photonics
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Photonics: Beam me up

'Tractor beams' of light that pull objects towards them are no longer science fiction. Haifeng Wang at the A*STAR Data Storage Institute and co-workers have now demonstrated how a tractor beam can in fact be realized on a ...

dateMay 24, 2012 in General Physics
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Measuring magnetic fields

(Phys.org) -- Polarized light is a familiar phenomenon, as people who prefer polarized sunglasses can testify. The electric field in a beam of light can vibrate either left-right or up-down, and the scattering or reflection ...

dateApr 09, 2012 in Astronomy
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