News tagged with light particles
Science nugget: Catching solar particles infiltrating Earth's atmosphere
(Phys.org) -- On May 17, 2012 an M-class flare exploded from the sun. The eruption also shot out a burst of solar particles traveling at nearly the speed of light that reached Earth about 20 minutes after ...
Space & Earth / Space Exploration
23 hours ago |
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A new generation of acoustic measurements
NPL scientists have made the first measurements of airborne acoustic free-field pressures using a laser technique based on photon correlation spectroscopy.
May 29, 2012 |
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'Metamaterials,' quantum dots show promise for new technologies
(Phys.org) -- Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including ...
May 24, 2012 |
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Efficient and tunable interface for quantum networks
(Phys.org) -- Quantum computers may someday revolutionize the information world. But in order for quantum computers at distant locations to communicate with one another, they have to be linked together in ...
May 23, 2012 |
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Astrophysicists discover new heating source in cosmological structure formation
(Phys.org) -- So far, astrophysicists thought that super-massive black holes can only influence their immediate surroundings. A collaboration of scientists at the Heidelberg Institute for Theoretical Studies ...
May 15, 2012 |
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EU physicists use 20 new satellites to forecast space weather
The northern lights interfere with radio communications, GPS navigation and satellite communications. Researchers are now going to launch 20 satellites containing world class instruments from the University ...
Space & Earth / Space Exploration
May 14, 2012 |
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Single nanomaterial yields many laser colors
Red, green, and blue lasers have become small and cheap enough to find their way into products ranging from BluRay DVD players to fancy pens, but each color is made with different semiconductor materials and ...
Apr 29, 2012 |
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WISE mission sees skies ablaze with blazars
(Phys.org) -- Astronomers are actively hunting a class of supermassive black holes throughout the universe called blazars thanks to data collected by NASA's Wide-field Infrared Survey Explorer (WISE). The ...
Apr 12, 2012 |
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New design for nanoparticles that absorb low-energy light, emit high-energy light may find use in biological imaging
The light that a luminescent particle emits is usually less energetic than the light that it absorbs. Some applications require the emitted light to be more energetic, but this so-called upconversion process ...
Nanotechnology / Nanomaterials
Apr 12, 2012 |
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First results from RENO: Observation of the weakest neutrino transformation
The Reactor Experiment for Neutrino Oscillations (RENO) research team announced the first result of the search for the remaining, most elusive puzzle of the neutrino transformation. They have found disappearance of neutrinos ...
Apr 09, 2012 |
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Quantum dots provide quantitative profile of pancreatic cancer biomarkers on single cells
(Phys.org) -- With the aid of a novel set of lipid-coated, targeted quantum dots, researchers at Johns Hopkins University have developed a method for quantifying multiple specific biomarkers on the surfaces of individual ...
Nanotechnology / Bio & Medicine
Apr 06, 2012 |
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Physicists control quantum tunneling with light for the first time
Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave nature of particles, this ...
Apr 05, 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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'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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Tailored optical material from DNA: Nano spiral staircases modify light
In the human body genetic information is encoded in double-stranded deoxyribonucleic acid building blocks, the so-called DNA. Using artificial DNA molecules, an international team of scientists headed by the ...
Nanotechnology / Nanomaterials
Mar 14, 2012 |
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