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Light Sources News
Light Propagation Controlled in Photonic Chips
New York, N.Y., July 11, 2011 — In what is being touted as a major breakthrough in the field of telecommunications, scientists built optical nanostructures that can slow down photons and fully control light dispersion. They showed that it is possible for light to propagate from point A to point B without accumulating any phase, spreading through the artificial medium as if the medium is completely missing in space. This is the first time simultaneous phase and zero-index observations have been made on the chip-scale and at...
LEDiL Taps Mouser as Global Distributor
MANSFIELD, Texas, July 7, 2011 — Mouser Electronics Inc., a subsidiary of TTI Inc., announced an agreement with LEDiL to distribute the latter’s line of LED reflectors and lenses to customers worldwide. LEDiL manufactures advanced optics designed to support high-power and...
Light Dragged by Slowing It to Speed of Sound
GLASGOW, Scotland, July 7, 2011 — For the first time, light has been slowed to the speed of sound using a technique that could improve optical storage and the processing of quantum information. Scientists at the University of Glasgow dragged light through various substances,...
Unique Luminescence Found in Nanocrystals
BERKELEY, Calif., July 6, 2011 — A fundamental principle of photoluminescence known as “Kasha’s rule” was broken by scientists at the US Department of Energy’s Lawrence Berkeley National Laboratory when they created artificial molecules of semiconductor...
Flexible Display Center Installs OLED Tool
TEMPE, Ariz., July 5, 2011 — The Flexible Display Center (FDC) at Arizona State University has installed Korea-based Sunic Systems' GEN-II OLED SUNICEL Plus 400 vacuum evaporation and encapsulation process tool. The new system gives the FDC the ability to manufacture full-color...
Nanowires Influence Direction, Intensity of LEDs
AMSTERDAM, Netherlands, July 5, 2011 — A new method for controlling the direction and intensity of LED light emission consists of growing partially emitting nanowires that form an ordered pattern, creating a "photonic crystal" that sends light in specific directions. Electron...
QDs Help Make Solar Fuel a Reality
MANCHESTER, England, July 5, 2011 — A solar-nano device is being created with the hope that it can harness the energy of the sun and convert it into a clean fuel alternative. Using quantum dots grafted with catalyst molecules, scientists are harvesting the sun’s energy to...
AMOLED Displays for Video
Jul 1, 2011 — The Flexible Display Center (FDC) at Arizona State University in Tempe, and Universal Display Corp. of Ewing, N.J., have fabricated full-color, flexible active-matrix organic light-emitting diode (AMOLED) display prototypes. With funding from the US...
Droop root identified
SANTA BARBARA, Calif. – Nitride-based LEDs are efficient, nontoxic and long-lasting, but they are considered impractical for general lighting because of a drop in efficiency when operating at high power. And now we know why this happens. Researchers at the University...
LED Lighting Partnership Formed
Jul 1, 2011 — In Germany, Jenoptik’s business unit Optoelectronic Systems, a manufacturer of optoelectronic systems and polymer optical components, and Leids GmbH & Co. KG, a solid-state lighting developer in Backnang-Waldrems, have signed a five-year...
Method increases green LED light output
TROY, N.Y. – In a step toward the development of LED televisions and displays, researchers have devised a method for manufacturing green-colored LEDs with greatly enhanced light extraction, internal efficiency and light output. Scientists at Rensselaer...
Organic LEDs get chlorine boost
TORONTO – A simple chlorine treatment could improve organic LEDs (OLEDs), speeding up light display technology manufacturing. The new method also is easier and cheaper than current techniques. Prototype of large-area OLEDs fabricated using chlorinated indium...
Samsung Licenses QD LED Tech
Jul 1, 2011 — Samsung Electronics Co. Ltd., based in Seoul, South Korea, and Evident Technologies Inc. of Troy, N.Y., have entered into a patent licensing and purchasing agreement. Under the arrangement, Samsung has been granted worldwide access to...
Sanyo to Distribute Plextronics’ OLED Inks in Japan
Jul 1, 2011 — Plextronics Inc. of Pittsburgh has signed an OLED lighting distribution agreement with Sanyo Chemical Industries Ltd. of Kyoto, Japan. Under terms of the agreement, Sanyo will distribute select Plexcore OC inks developed for use in OLED lighting...
Xicato Secures LED Tech Patents
Jul 1, 2011 — Xicato, a solid-state lighting company based in San Jose, Calif., was issued US Patent Nos. 7942556 and 7942540 for its Corrected Cold Phosphor Technology for LED lighting applications. Patent 7942556 addresses fundamental aspects of the technology,...
‘Campfire Effect’ Observed in Blinking Nanorod Clusters
PHILADELPHIA, June 30, 2011 — When semiconductor nanorods are exposed to light, they blink in a seemingly random pattern, but when clustered together, the combined “on” time is increased dramatically, providing new insight into the mysterious blinking behavior. Many...
Pen ‘Writes’ Circuits for Flexible Electronics
CHAMPAIGN, Ill., June 30, 2011 — A pen with conductive silver ink that can write electrical circuits and interconnects on paper, wood and other surfaces is composing a whole new chapter in low-cost, flexible and disposable electronics. “Pen-based printing allows one to...
ALICE to Accelerate Bioresearch
CHESHIRE, England, June 29, 2011 — Low-power terahertz rays have proven applications in both security devices and medical imaging, but now the effects of Europe’s most intense terahertz light source on human cells is being researched with the hope of triggering advances in...
CEA-Leti, Neolux Partner on Intelligent LEDs
GRENOBLE & LA CHAPELLE VENDÔMOISE, France, June 24, 2011 — CEA-Leti and Neolux announced they will collaborate on a new three-year project, known as MODULED, aimed at industrializing smart LED systems in France by simplifying functioning and assembly, reducing the mechanics and electronics of current LED...
Inspired Chaos in a Microlaser
WÜRZBURG, Germany, June 24, 2011 — Using a mirror to continually send a fraction of the emitted light back into a quantum dot microlaser, researchers were able to throw the light emission process off-kilter, prompting the microlaser to emit photons in a chaotic pulse sequence. This...
A Better Solar-Powered Water Splitter Devised
STANFORD, Calif., June 23, 2011 — To withstand the highly corrosive environment inherent in the process of splitting water, electron-producing silicon-based solar electrodes, which deteriorate almost immediately when exposed to oxygen, are now being coated with an ultrathin layer of...
Luster LightTech to Distribute for ProPhotonix in China, Hong Kong
SALEM, N.H., June 22, 2011 — ProPhotonix Ltd. announced it appointed Luster LightTech Co. Ltd. as its exclusive distributor of machine vision illumination products in China and Hong Kong. The agreement expands ProPhotonix’s existing machine vision market position in the...
Smaller, Flexible LED Created
CORAL GABLES, Fla., June 22, 2011 — A new LED device has been created that uses an array of LEDs 100 times smaller than conventional LEDs and that is flexible, maintains lower temperature and has an increased life span. "The new model uses a silicon substrate, novel etching...
First Micropillars Milled in Warsaw
WARSAW, Poland, June 20, 2011 — Rare milling equipment that produces nanosize semiconductor structures, or micropillars, is now at the disposal of scientists and students at the University of Warsaw. These micropillars can be used as efficient light sources and will open up...
GT Solar Receives $460M Order
MERRIMACK, N.H., June 17, 2011 — GT Solar International Inc. received a $460.4 million order for its advanced sapphire crystallization furnaces from a new market entrant. The company’s largest single order to date, it represents a milestone and will be included in...
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August 2024
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