News tagged with light beams

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Blackening copper opens new applications

(—Copper is one of the world's most widely used metals. Now researchers at the University of Dundee have found that blackening copper using industry-standard lasers could make it even more adaptable and efficient.

dateJan 16, 2013 in Condensed Matter
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Chips that can steer light

If you want to create a moving light source, you have a few possibilities. One is to mount a light emitter in some kind of mechanical housing—the approach used in, say, theatrical spotlights, which stagehands swivel and ...

dateJan 09, 2013 in Optics & Photonics
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Caltech engineers invent light-focusing device

(—As technology advances, it tends to shrink. From cell phones to laptops—powered by increasingly faster and tinier processors—everything is getting thinner and sleeker. And now light beams are getting smaller, ...

dateDec 07, 2012 in General Physics
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