News tagged with light wave
Flipping a photonic shock wave
A team of physicists has directly observed a reverse shock wave of light in a specially tailored structure known as a left-handed metamaterial. Although it was first predicted over forty years ago, this is ...
Nov 02, 2009 |
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Scientists first to trap light and sound vibrations together in nanocrystal
(PhysOrg.com) -- Researchers at the California Institute of Technology have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the ...
Oct 26, 2009 |
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Smallest nanoantennas for high-speed data networks
More than 120 years after the discovery of the electromagnetic character of radio waves by Heinrich Hertz, wireless data transmission dominates information technology. Higher and higher radio frequencies are ...
Oct 20, 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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Capturing images in non-traditional way may benefit AF
New research in imaging may lead to advancements for the Air Force in data encryption and wide-area photography with high resolution.
Jul 14, 2009 |
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First acoustic metamaterial 'superlens' created
A team of researchers at the University of Illinois has created the world's first acoustic "superlens," an innovation that could have practical implications for high-resolution ultrasound imaging, non-destructive ...
Jun 24, 2009 |
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Catching the lightwave: Nano-mechanical sensors 'wired' by photonics
As researchers push towards detection of single molecules, single electron spins and the smallest amounts of mass and movement, Yale researchers have demonstrated silicon-based nanocantilevers, smaller than ...
Apr 26, 2009 |
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Making waves in the brain: Researchers use lasers to induce gamma brain waves in mice
Scientists have studied high-frequency brain waves, known as gamma oscillations, for more than 50 years, believing them crucial to consciousness, attention, learning and memory. Now, for the first time, MIT researchers and ...
Medicine & Health / Neuroscience
Apr 26, 2009 |
5 / 5 (5) |
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Shaking the Fundamentals of Physics: At the Limits of the Photoelectric Effect
With extremely short wavelengths and very high intensities, light-matter interaction seems to be different than previously accepted.
Apr 24, 2009 |
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Scientists to study diamond-based quantum information processing, communication
(Santa Barbara, Calif.) -- In the quest for quantum information processing, diamonds may be a physicist's best friend.
Apr 15, 2009 |
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Dissecting a stellar explosion
(PhysOrg.com) -- Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, ...
Apr 03, 2009 |
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New aerosol observing technique turns gray skies to blue (w/Video)
(PhysOrg.com) -- Tiny, ubiquitous particles in the atmosphere may play a profound role in regulating global climate. But the scientists who study these particles -- called aerosols -- have long struggled to ...
Space & Earth / Earth Sciences
Mar 12, 2009 |
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Engineers ride 'rogue' laser waves to build better light sources
A freak wave at sea is a terrifying sight. Seven stories tall, wildly unpredictable, and incredibly destructive, such waves have been known to emerge from calm waters and swallow ships whole. But rogue waves ...
Mar 05, 2009 |
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Scientists closer to making invisibility cloak a reality
J.K. Rowling may not have realized just how close Harry Potter's invisibility cloak was to becoming a reality when she introduced it in the first book of her best-selling fictional series in 1998. Scientists, however, have ...
Mar 05, 2009 |
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Engineers tune a nanoscale grating structure to trap and release a variety of light waves
People debating politics are well-advised to shed more light than heat. Engineers working in optical technologies have the same aspiration.
Feb 17, 2009 |
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