Search results for photonic crystal
Fast, low-power, all-optical switch
An optical switch developed at the Joint Quantum Institute (JQI) spurs the prospective integration of photonics and electronics. What, isn't electronics good enough? Well, nothing travels faster than light, ...
May 03, 2012 |
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Nanomedicine: Quantum dots appear safe in pioneering study on primates
A pioneering study to gauge the toxicity of quantum dots in primates has found the tiny crystals to be safe over a one-year period, a hopeful outcome for doctors and scientists seeking new ways to battle diseases ...
Nanotechnology / Bio & Medicine
May 20, 2012 |
4.3 / 5 (3) |
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An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
4.3 / 5 (4) |
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A physicist and an inventor
As a boy growing up in Croatia, Marin Soljacic wanted to be an inventor. But he wasn’t interested only in designing new products; he wanted to discover physical phenomena that would enable completely ...
May 14, 2012 |
5 / 5 (5) |
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Solar-panel-like retinal prosthesis could better restore sight to blind
(Phys.org) -- Using tiny solar-panel-like cells surgically placed underneath the retina, scientists at the Stanford University School of Medicine have devised a system that may someday restore sight to people ...
May 13, 2012 |
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Gamma ray optics: A viable tool for a new branch of scientific discovery
Scientists at the Institut Laue-Langevin (ILL) have demonstrated for the first time that gamma rays, a highly energetic form of light produced by radioactive decay of atomic nuclei and amongst other used to ...
May 09, 2012 |
4.3 / 5 (8) |
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Brighter, smaller probes to uncover the secret lives of proteins
(Phys.org) -- Imagine tracking a deer through a forest by clipping a radio transmitter to its ear and monitoring the deer’s location remotely. Now imagine that transmitter is the size of a house, and ...
Nanotechnology / Bio & Medicine
May 08, 2012 |
5 / 5 (2) |
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International team to demonstrate first heralded single-photon generation from a silicon chip
An international consortium of researchers has overcome an important barrier to the generation of single photons using a tiny, chip-scale device constructed from the most widely used material underpinning ...
May 01, 2012 |
4.8 / 5 (13) |
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Novel radiation surveillance technology could help thwart nuclear terrorism
Among terrorism scenarios that raise the most concern are attacks involving nuclear devices or materials. For that reason, technology that can effectively detect smuggled radioactive materials is considered ...
May 01, 2012 |
4.7 / 5 (7) |
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Conquering LED efficiency droop
WASHINGTON, April 30--Like a coffee enthusiast who struggles to get a buzz from that third cup of morning joe, light-emitting diodes (LEDs) seem to reach a point where more electricity no longer imparts the ...
Apr 30, 2012 |
5 / 5 (10) |
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Two crystals linked by quantum physics
Physicists take a perverse pleasure in playing with the strangeness of the quantum world. That's how they have managed to entangle minuscule objects such as photons. After specific manipulations, they persuade two photons ...
Mar 05, 2012 |
4.8 / 5 (12) |
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How heroin works: Imaging opioid receptors in the brain
(Phys.org) -- Researchers and doctors have gleaned new clues to the molecular mechanisms behind some of the most addictive substances in the world, thanks to two new studies that uncovered the structures of ...
Apr 25, 2012 |
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New light technology could spot and help cure diseases earlier
World-leading experts at the University of St Andrews have been awarded a £5.6m grant to develop new light technologies which could improve diagnosis and treatments of diseases by being able to see into ...
Apr 19, 2012 |
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The solar cell that also shines: Luminescent 'LED-type' design breaks efficiency record
To produce the maximum amount of energy, solar cells are designed to absorb as much light from the Sun as possible. Now researchers from the University of California, Berkeley, have suggested – and demonstrated ...
Nanotechnology / Nanomaterials
Apr 19, 2012 |
5 / 5 (15) |
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Shedding light on nature's nanoscale control of solar energy
Nature's process for storing solar energy occurs in light-absorbing protein complexes called photosynthetic reaction centers (RCs). Across billions of years of evolution, Nature has retained a common light-absorbing ...
Apr 18, 2012 |
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