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Research & Technology News
Imaging System Produces 3-D Monument Models with UAVs
GRANADA, Spain, May 29, 2012 — A 3-D imaging system scans 3-D models of historical buildings using data obtained from an unmanned aerial vehicle.
Dopant Breaks Graphene Solar Efficiency Record
GAINESVILLE, Fla., May 25, 2012 — Chemically treated graphene has upped the material’s solar power conversion efficiency from 2.9 percent to a record-breaking 8.6 percent. Researchers at the University of Florida have taken graphene, a single-atom-thick lattice of carbon...
Efficient and Tunable Entanglement Method Developed
INNSBRUCK, Austria, May 25 — To construct a viable quantum network, individual computers will need a way to reliably transmit information to each other. This will require an understanding of how light and matter interact at a quantum level, an understanding that is now much...
Lidar Maps Faults Near Lake Tahoe
CARNELIAN BAY, Calif., May 25, 2012 — Faults west of Lake Tahoe, Calif., now pose a substantial increase in the seismic hazard assessment and potentially could generate earthquakes with magnitudes ranging from 6.3 to 6.9, according to a new US Geological Survey study.
Light Pollution Transforms Insect Communities
EXETER, England, May 25, 2012 — Streetlights have substantially transformed the ecology of ground-dwelling insects and other invertebrates, according to a new study out of the University of Exeter.
Carbon Nanotubes Create More Efficient IR Detector
BEIJING, May 24, 2012 — Carbon nanotubes seem to be useful for just about every conceivable application. Their newest purpose is to create highly sensitive uncooled photovoltaic infrared detectors that can be used for industrial, manufacturing, communications and military...
Microscope Uses Broadband Light to Track Cell Flow
HAIFA, Israel, May 24, 2012 — A novel optical instrument no bigger than a breadbox can take real-time images of blood coursing through our veins without harsh and short-lived fluorescent dyes.
Germ-Killing UV LEDs
RALEIGH, N.C., May 23, 2012 — A relatively simple and inexpensive solution to the problem of ultraviolet light-absorption in LED substrates will enable the development of LED devices that use UV light to kill pathogens such as bacteria and viruses. Researchers at North Carolina...
Plasmonics Creates Invisible Photodetector
STANFORD, Calif., May 23, 2012 — An invisible light-detecting device that can see without being seen was created using plasmonic cloaking and could lead to a new class of devices that controls the flow of light at the nanoscale to produce both optical and electronic functions.
Simple, Safe Optochemical Sensor Relies on Light
GIESSEN, Germany, May 23, 2012 — Using only the interaction between nanostructures and light, an optochemical sensor has been developed that is simpler, safer and more reliable than standard electrical sensors. Researchers working on the European Union-funded Dotsense project have...
Ultrafast phase changes observed in graphite
STANFORD, Calif., May 23, 2012 — Graphite once again has been shown to have ground-breaking potential due to its ability to phase change from a liquid to a warm-dense plasma in just 40 fs. Researchers using the Linac Coherent Light Source (LCLS) X-ray Free-Electron Laser (XFEL) at...
Interferometry Advances Black Hole Observations
SANTA BARBARA, Calif., May 22, 2012 — A new technique that combines the light of three powerful infrared telescopes allows astronomers to see objects in that wavelength 130 million light-years away without having to build singularly massive and expensive telescopes specifically designed...
Primate Study Deems QDs Nontoxic — at Least for Short Term
BUFFALO, N.Y., May 22, 2012 — Cadmium-selenide quantum dots are nontoxic to primates over a one-year period, a new study found. The dots could hold great promise as tools for treating and detecting diseases such as cancer through nanomedicine.
Laser Beams Transmitted Via Satellite
BERN, Switzerland, May 21, 2012 — By bouncing a high-power laser beam off an orbiting satellite, observatories in Austria and Switzerland transmitted the beam to each other. Its creators hope to apply the method to space debris detection and targeting in shuttles and other devices...
3-D Laser Scanner Keeps Trains Safe
FREIBURG, Germany, May 21, 2012 — An infrared 3-D laser scanner that mounts on trains or cars can detects obstacles and unsafe conditions on the track or road. A team led by Heinrich Höfler and Harald Wölfelschneider of Fraunhofer Institute for Physical Measurement...
New Metamaterial Creates Practical, Tunable Devices
WEST LAFAYETTE, Ind., May 21, 2012 — A novel metamaterial can easily be integrated into semiconductor electronics, which could advance sensors, solar collectors, quantum computing and optical cloaks, and could lead to devices that make optical microscopes 10 times more powerful. Noble...
MIRI Ready to be Shipped to NASA
HEIDELBERG, Germany, May 18, 2012 — The first instrument for the James Webb Space Telescope was completed by the Max Planck Institute for Astronomy and handed over to NASA.
CMOS Sensor Allows Robots to ID Objects in 3-D
DUISBURG, Germany, May 17, 2012 — A new CMOS sensor implemented in unmanned aerial vehicles (UAVs) gives the aircraft autonomy, improving collision detection as well as enabling 3-D modeling of disaster areas and surveillance targets. Researchers at the Fraunhofer Institute for...
3-D Holography Peers Under Mummy’s Shroud
EDINBURGH, Scotland, May 16, 2012 — Great details of an ancient mummy, including jewelry adorning its inner shroud, have been revealed in color using 3-D holograms. The University of Edinburgh’s Clinical Research Imaging Center (CRIC), in collaboration with Edinburgh-based 3-D...
Laser Pulse Reveals Quantum Phase in Electrons
VIENNA, May 16, 2012 — Events that appear to happen instantaneously now can be resolved to a resolution of 10 attoseconds, enabling scientists to look at phenomena that happens on the order of attoseconds (10-18 s), previously far too fast to measure. Researchers at...
Technique Boosts THz Production
SINGAPORE, May 16, 2012 — A new technique for producing more efficient terahertz radiation could lead the way to more powerful sensing and imaging technologies that can see through opaque materials. The terahertz band of the electromagnetic spectrum has a lot of...
Nanoparticles Coaxed into Self-Assembly
BERKELEY, Calif., May 15, 2012 — A simple and inexpensive technique directs the self-assembly of nanoparticles into device-ready materials and has applications in fields including computer memory storage, energy storage and harvesting, remote sensing, catalysis, light management...
New Solar Material Seeks to Replace Silicon
TURKU, Finland, May 15, 2012 — Silicon solar cells could be replaced by flexible, lightweight and inexpensive dyes, if scientists in Finland achieve their goal. Jongyun Moon and colleagues at the University of Turku have developed dye-sensitized solar cells (DSCs) and...
SOFIA Completes GREAT Science Flight
STUTTGART, Germany, May 15, 2012 — The German Receiver for Astronomy at Terahertz Frequencies (GREAT) experiment onboard the Stratospheric Observatory for Infrared Astronomy (SOFIA) has completed its first observations, and scientists at the National Aeronautical and Space...
Artificial Leaf Could Bring Electricity to Developing World
CAMBRIDGE, Mass., May 14, 2012 — The first practical artificial leaf, composed of silicon, nickel and cobalt, can convert sunlight into chemical fuel, a milestone in the drive for sustainable energy that mimics the process of photosynthesis.
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