News tagged with light beams
How to see through opaque materials
New experiments show that it's possible to focus light through opaque materials and detect objects hidden behind them, provided you know enough about the material.
Mar 08, 2010 |
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What will the Large Hadron Collider reveal?
With its successful test run at the end of 2009, the Large Hadron Collider near Geneva, Switzerland, seized the world record for the highest-energy particle collisions created by mankind. We can now reflect ...
Jan 07, 2010 |
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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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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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Caltech scientists film photons with electrons
(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...
Dec 16, 2009 |
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Scientists demonstrate multibeam, multi-functional lasers
An international team of applied scientists from Harvard, Hamamatsu Photonics, and ETH Zürich have demonstrated compact, multibeam, and multi-wavelength lasers emitting in the invisible part of the light spectrum ...
Nov 30, 2009 |
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Compressing photonic signals for greater bandwidth
Cornell researchers have developed an ingenious method to time-compress optical signals. The process could enable optical communication systems to carry many more bits per second or could also be used to generate ...
Nov 03, 2009 |
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Physicists Demonstrate Three-Color Entanglement
(PhysOrg.com) -- For the first time, physicists have demonstrated the quantum entanglement of three light beams, all of different wavelengths. Entanglement of two light beams of different wavelengths has already ...
Oct 07, 2009 |
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Multi-laboratory study sizes up nanoparticle sizing
As a result of a major inter-laboratory study, the standards body ASTM International has been able to update its guidelines for a commonly used technique for measuring the size of nanoparticles in solutions. The study, which ...
Nanotechnology / Nanomaterials
Aug 11, 2009 |
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A Kinoform's Best Friend: Diamond Refractive Lenses for Nanofocusing
(PhysOrg.com) -- A team of Brookhaven and Argonne National Laboratory researchers has demonstrated a reliable path for sculpting an intricate x-ray focusing lens out of diamond. Their technique, which was ...
Aug 03, 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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Quantum memory and turbulence in ultra-cold atoms
Scientists at MIT have figured out a key step toward the design of quantum information networks. The results are reported in the July 20th issue of Physical Review Letters and highlighted in APS's on-line journa ...
Jul 20, 2009 |
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Scientists Discover Light Force with 'Push' Power
(PhysOrg.com) -- A team of Yale University researchers has discovered a "repulsive" light force that can be used to control components on silicon microchips, meaning future nanodevices could be controlled ...
Jul 13, 2009 |
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Scientists develop novel ion trap for sensing force and light
Miniature devices for trapping ions (electrically charged atoms) are common components in atomic clocks and quantum computing research. Now, a novel ion trap geometry demonstrated at the National Institute ...
Jul 01, 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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