News tagged with light
Related topics: wavelength , solar cells , laser , physical review letters , photons
An optical diode made with silicon technology can be used for quantum information
(PhysOrg.com) -- Transistors, resistors, capacitors, and diodes. All of these are examples of common electrical circuit elements that can be found on a computer motherboard, for instance. Billions of transistors ...
Mar 23, 2012 |
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Watching a star explode
NASA's Astronomy Picture of the Day for March 22 features a snapshot of a supernova - a massive star explosion - discovered only a week ago.
Mar 23, 2012 |
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Physicists demonstrate quantum plasmons in atomic-scale nanoparticles
Addressing a half-century-old question, engineers at Stanford have conclusively determined how collective electron oscillations, called plasmons, behave in individual metal particles as small as just a few nanometers in diameter. ...
Mar 21, 2012 |
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VISTA stares deep into the cosmos: Treasure trove of new infrared data made available to astronomers
(PhysOrg.com) -- ESO's VISTA telescope has created the widest deep view of the sky ever made using infrared light. This new picture of an unremarkable patch of sky comes from the UltraVISTA survey and reveals ...
Mar 21, 2012 |
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Light pulses take a quantum walk
Tourists who drift aimlessly during a sightseeing tour are moving randomly - just like electrons that move from one atom to the next. To obtain a better understanding of these random motions it is often useful ...
Mar 21, 2012 |
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A camera that peers around corners (w/ video)
In December, MIT Media Lab researchers caused a stir by releasing a slow-motion video of a burst of light traveling the length of a plastic bottle. But the experimental setup that enabled that video was des ...
Mar 20, 2012 |
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New technique lights up the creation of holograms
Researchers at the RIKEN Advanced Science Institute (Japan) have developed a unique way to create full-color holograms with the aid of surface plasmons.
Mar 19, 2012 |
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Exotic metamaterials will change optics
Duke University engineers believe that continued advances in creating ever-more exotic and sophisticated man-made materials will greatly improve their ability to control light at will.
Mar 18, 2012 |
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'Faster-than-light' particles fade after cross-check
Neutrinos do not go faster than light, according to fresh measurements of a test last year that had suggested the particles broke the Universe's speed limit, CERN said on Friday.
Mar 16, 2012 |
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Far-out photosynthesis
Photosynthesis maintains Earth's habitability for life as we know it, and shapes the way we search for habitable worlds around distant stars. Scientists have discovered a microbe that can use low-energy light ...
Mar 16, 2012 |
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Space Image: Enceladus, Saturn's moon
(PhysOrg.com) -- Below a darkened Enceladus, a plume of water ice is backlit in this view of one of Saturn's most dramatic moons.
Space & Earth / Space Exploration
Mar 16, 2012 |
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Basketball-sized eyes help squids play defense
Giant and colossal squids have eyes as big as basketballs, and a Duke scientist thinks he knows why.
Mar 15, 2012 |
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Combining centuries-old mathematical theorems provides efficient approach for characterizing nanoparticles' shape
(PhysOrg.com) -- Gregg Gallatin, a researcher at the NIST Center for Nanoscale Science and Technology, has shown that combining a nineteenth century flux theorem with an eighteenth century mathematical operation provides ...
Mar 15, 2012 |
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New WISE mission catalog of entire infrared sky released
(PhysOrg.com) -- NASA unveiled a new atlas and catalog of the entire infrared sky today showing more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer ...
Mar 15, 2012 |
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The 'twilight zone' of traffic costs lives at stoplight intersections
(PhysOrg.com) -- Hundreds of lives are being lost each year in the United States because of mistakes made in what engineers call the "dilemma zone" – that area before a stoplight intersection where the ...
Mar 14, 2012 |
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