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Research & Technology News
Teledyne Dalsa Secures Earth Observation Contract
WATERLOO, Ontario, Canada, Dec. 12, 2011 — Teledyne Dalsa received a contract from Surrey Satellite Technology Ltd. (SSTL) of Guildford, UK, to develop a multispectral sensor for an advanced Earth observation application. The multimillion-dollar project is expected to begin delivering high-resolution images in 2014. This Earth observation application will be part of the DMC3 (Disaster Monitoring Constellation) series of satellites. The multispectral sensors to be developed by Teledyne Dalsa will allow Surrey’s subsidiary...
Here, Kitty Kitty!
ALTAI REPUBLIC, Russia, Dec. 9, 2011 — Carefully placed camera traps — imagers equipped with motion sensors — have taken the first photos ever of two elusive members of the cat family. Images of both snow leopard and manul (also called Pallas’s cat) are helping...
Method Uses Glass Fiber to Detect Atoms
VIENNA, Dec. 9, 2011 — A highly sensitive method that requires specially prepared light waves coupled to ultrathin glass fibers can be used to count and interact with a very small number of atoms — making it possible to build extremely sensitive detectors. The...
Laser-Produced Proton Beams Open New Research Areas
LIVERMORE, Calif., Dec. 8, 2011 — Recent proton beam experiments using high-intensity lasers have unveiled a new way to heat material and create novel states of matter in the laboratory. This advance could lead to medical applications and even offer insight into planetary science....
Submillimeter Camera Set to Scan the Universe
MAUNA KEA, Hawaii, Dec. 8, 2011 — The world’s largest submillimeter camera is now ready to scan the universe, including faint and faraway parts never before seen. Mounted on the James Clerk Maxwell Telescope on Mauna Kea, the instrument will advance studies of the origins of...
Solar Concentration Without Mirrors
CAMBRIDGE, Mass., Dec. 7, 2011 — By employing a photonic crystal to keep heat from escaping, thermophotovoltaic devices can concentrate sunlight without mirrors, potentially making thermophotovoltaics much simpler and less expensive because they can be made using standard...
SPIE CEO: Photonics Industry Growing
HONG KONG, Dec. 7, 2011 — The demand for photonics is large and on the way to becoming "enormous," yet the ubiquitous technology remains nearly invisible to the general public, SPIE CEO Eugene Arthurs told participants last month at the Hong Kong Optical Engineering...
Young Star Really Gets Around
BALTIMORE, Dec. 7, 2011 — The fastest spinning star yet has been discovered, a hot blue giant rotating at a stupefying million miles an hour. Twirling 100 times faster than our sun does, the star VFTS 102 is very close to the limit at which it would be torn apart because of...
Lasers Control Electronic Spin
CAMBRIDGE, Mass., Dec. 6, 2011 — For the first time, light has proved useful in obtaining information about the spin of electrons flowing over topological insulators — a discovery that could open up possibilities for new devices based on spintronics and magnetic data storage....
UArizona Receives $500K for THz Imager
TUCSON, Ariz., Dec. 6, 2011 — The University of Arizona College of Engineering has received half a million dollars to develop a unique terahertz imaging instrument. The imager will generate terahertz emissions and analyze how spectra in this range are absorbed and reflected by...
Biomimetic Antenna May Transform Solar Devices
ST. LOUIS, Dec. 5, 2011 — A newly developed light-harvesting antenna modeled on the chlorosome found in green bacteria could transform solar-powered devices and give silicon and printed dye photovoltaics a run for their money. The invention of the solar cell in 1941...
Laser Imaging Assesses Sunscreen Safety
WASHINGTON, Dec. 2, 2011 — In an attempt to answer safety questions about the use of nanoparticles in sunscreen, a new laser imaging technique has been developed to assess the risks associated with one of sunscreen’s ingredients — zinc oxide (ZnO). Overlay...
"Mirage effect" from carbon nanotubes hides objects
DALLAS — A cloaking device made from sheets of transparent carbon nanotubes takes advantage of the mirage effect — an optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky — to make objects...
"Smart" polymer disassembles under low-level NIR irradiation
SAN DIEGO — A unique polymeric material disassembles when exposed to low levels of near-infrared irradiation and is well-tolerated by cells. The new "smart" polymer could be used for noninvasive medical and biological applications. Researchers at the...
Compact terahertz device could improve security screening
EVANSTON, Ill. — Using two mid-infrared laser beams, researchers have finally generated single-chip terahertz radiation at room temperature. The technology could speed up and improve a range of processes, including high-sensitivity biological and chemical analysis,...
Copper nanowires enable cheaper foldable electronics, solar cells
DURHAM, N.C. — Copper nanowires could bring down production costs for electronic displays, foldable electronics and solar cells — helping engineers build more affordable e-readers, iPads, cell phones, photovoltaic panels and more. A new technique...
Improved photosynthesis increases fuel, food production
SWINDON, UK — Overcoming some fundamental limitations of photosynthesis could lead to major increases in crop yields, bioenergy and the production of renewable chemicals, and five new research projects have taken up the cause. The new research complements...
IPhone becomes multipurpose imaging tool
DAVIS, Calif. — Using materials that cost about as much as a typical app, scientists have transformed the everyday iPhone into a medical-quality imaging and chemical-detection device that performs detailed microscopy and spectroscopy. The enhanced device...
Laser remelting produces structured surface designs
AACHEN, Germany — Structuring the metallic surfaces of tool inserts by laser remelting allows manufacturers to more quickly and cost-effectively adapt their production processes to incorporate novel structures and design elements. Unlike laser structuring by...
Microarray chips enhance clinical diagnostics
AACHEN, Germany — A laser-based benchtop system fabricates protein microarray chips for use in clinical diagnostics, enabling doctors to identify tumor markers in blood samples and to detect pathogens responsible for infectious diseases. Microarray chips for...
nQuire software brings science to life for youth
NOTTINGHAM, UK — A software tool kit encourages students to ask questions and look for deeper reasons behind observations, helping them to think and act like real science investigators. The new approach could spark and sustain interest in science and lead today's...
Simple nanoantenna separates colors of light
GOTHENBURG, Sweden — A new nanoantenna directs red and blue colors in opposite directions and could lead to optical nanosensors that can detect very low concentrations of gases or biomolecules. Historically, a structure that is smaller than the wavelength of...
Smart petri dish analyzes cell growth
PASADENA, Calif. — Built from a smartphone, a commercially available cell phone image sensor and some Lego blocks, ePetri isn’t like other petri dishes. The compact, lens-free microscopy imaging platform can track cell cultures and bacteria as they incubate....
Component Simplifies Making All-Optical Chips
CAMBRIDGE, Mass., Nov. 30, 2011 — A recently discovered "diode for light" could enable the creation of photonic chips, paving the way for computing with light. Currently, in most communication systems, data travels via light beams transmitted through optical fibers. Once the...
Cyborg Bugs as First Responders?
ANN ARBOR, Mich., Nov. 30, 2011 — A device that harvests energy from a bug’s movements could allow cyborg insects — rather than humans — to monitor hazardous situations. The principal idea is to harvest the insect’s biological energy from either its body heat...
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