News tagged with beams of light
Scientists build world's first anti-laser
More than 50 years after the invention of the laser, scientists at Yale University have built the world's first anti-laser, in which incoming beams of light interfere with one another in such a way as to perfectly ...
Feb 17, 2011 |
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Quantum physics first: Researchers observe single photons in two-slit interferometer experiment
Quantum mechanics is famous for saying that a tree falling in a forest when there's no one there doesn't make a sound. Quantum mechanics also says that if anyone is listening, it interferes with and changes the tree. And ...
Jun 02, 2011 |
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Physicists build highly efficient 'no-waste' laser
A team of University of California, San Diego researchers has built the smallest room-temperature nanolaser to date, as well as an even more startling device: a highly efficient, "thresholdless" laser that ...
Feb 08, 2012 |
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Scientists take fresh look at 'faster-than-light' experiment
Scientists who threw down the gauntlet to physics by reporting particles that broke the Universe's speed limit said on Friday they were revisiting their contested experiment.
Oct 28, 2011 |
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Physicists propose quantum entanglement for motion of microscopic objects
Researchers at the California Institute of Technology (Caltech) have proposed a new paradigm that should allow scientists to observe quantum behavior in small mechanical systems.
Dec 21, 2009 |
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The guiding of light: A new metamaterial device steers beams along complex pathways
Using a composite metamaterial to deliver a complex set of instructions to a beam of light, Boston College physicists have created a device to guide electromagnetic waves around objects such as the corner ...
Jul 31, 2009 |
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Invisibility Cloak Blurs Line Between Magic and Science (w/Video)
(PhysOrg.com) -- The great science fiction writer Arthur C. Clarke famously noted the similarities between advanced technology and magic. This summer on the big screen, the young wizard Harry Potter will once ...
May 01, 2009 |
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Shutting Off the Large Hadron Collider
On hilly parts of the Interstate highway system, road engineers provide steep-grade areas with gravel off-ramps for trucks that lose their brakes. The ramps bring the big rigs to a rough but safe halt.
Jul 15, 2010 |
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Bend breakthrough sends light around a corner
(PhysOrg.com) -- Australian National University scientists have successfully bent light beams around an object on a two dimensional metal surface, opening the door to faster and cheaper computer chips working ...
Aug 12, 2011 |
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New material enables 'information sorting' at the speed of light
(PhysOrg.com) -- An international team of scientists led by King’s College London has taken a step closer towards developing optical components for super-fast computers and high-speed internet services ...
Jan 25, 2011 |
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When the speed of light depends on its direction
Light does not travel at the same speed in all directions under the effect of an electromagnetic field. Although predicted by theory, this counter-intuitive effect has for the first time been demonstrated ...
May 13, 2011 |
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Erasing history? Temporal cloaks adjust light's throttle to hide an event in time
Researchers from Cornell University in Ithaca, N.Y., have demonstrated for the first time that it's possible to cloak a singular event in time, creating what has been described as a "history editor." In a feat of Einstein-inspired ...
Oct 12, 2011 |
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Research team develops method to produce large sheets of metamaterials
(PhysOrg.com) -- In an announcement many have been waiting for, a research team from the University of Illinois, has succeeded in figuring out how to produce metamaterials in a size big enough to be useful. ...
Nanotechnology / Nanomaterials
Jun 15, 2011 |
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Light-Driven Nanorod Could Roll on Water
(PhysOrg.com) -- In a recent study, researchers have examined the possibility of rolling a nanorod on the surface of water. On the macroscale, perhaps the closest analogy might be the sport of logrolling, ...
Dec 18, 2009 |
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Physicists wary of junking light speed limit yet
(AP) -- Physicists on the team that measured particles traveling faster than light said Friday they were as surprised as their skeptics about the results, which appear to violate the laws of nature as we ...
Sep 23, 2011 |
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