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Research & Technology News
Single Entangled Photon Creation Unlocked
ATLANTA, April 20, 2012 — A new technique can produce single photons with specific properties more efficiently and about 1000 times faster than the current methods, an important advance for several research areas, including quantum information processing and quantum network development. Alex Kuzmich, a professor at the Georgia Institute of Technology, and his graduate research assistant Yaroslav Dudin discovered that they could create a Rydberg atom (a highly excited atom that is very near its ionization point) by sh...
Optical Technique Detects Malaria Early
TRIESTE, Italy, April 19, 2012 — Rapid detection of malaria, particularly in remote parts of the world, is not always possible because current methods are slow and require precise instrumentation and highly skilled microscopic analysis. Now, using a technique called secondary...
Release Process Could Broaden Uses of GaN SCs
TOKYO, April 18, 2012 — Nitride semiconductors grow only on certain surfaces, and their utility is limited by the substrate on which they are fabricated. But a new release process not only makes the process cheaper and easier, but also expands the potential uses of the...
Laser Creates Cheaper Free-Form Optics
AACHEN, Germany, April 17, 2012 — A new cost-effective process for fabricating small batches of nonspherical glass optical components will allow manufacturers to produce high-quality, customizable optical components of any geometry quickly and cheaply. A new cost-effective process...
Hyperspectral Imaging Sheds Light on Wound Healing
GAITHERSBURG, Md., April 13, 2012 — Hyperspectral imaging devices, calibrated to new National Institute of Standards and Technology standard reference spectra, could be used as noninvasive diagnostic tools for discriminating between healthy and diseased tissue and for providing new...
Key to Understanding Photosynthesis Found in Spinach
ATLANTA, April 13, 2012 — Using Fourier transform infrared spectroscopy, researchers at the Georgia Institute of Technology showed the importance of a hydrogen bonding water network in the photosynthesis substructure called photosystem II. The work helps clarify how ammonia...
Mode-Locked Laser Is Ultrafast, Ultrasmall
SYDNEY, April 13, 2012 — The first laser to be mode-locked using a microcavity resonator is a giant leap forward in laser technology, allowing for highly compact, fast and precise lasers. A team led by David Moss of the University of Sydney, in collaboration with scientists...
Exploring Optics Underwater with an iPad
STENNIS SPACE CENTER, Miss., April 11, 2012 — A new rigid frame device that securely holds a high-speed camera and an iPad can obtain field measurements of optical turbulence structures and quantify their impact on underwater imaging and beam propagation.
First Light of Mosfire Celebrated
WAIMEA, Hawaii, April 12, 2012 — The Mosfire instrument observed the universe with its near-infrared sensing eyes for the first time on April 4, capturing images of a pair of interacting galaxies known as The Antennae. The new device will enable astronomers to study space phenomena...
Making Solar Cells Greener
MANHATTAN, Kan., April 11, 2012 — A dye-sensitized solar cell that uses a protein-producing bacteria and synthesized dye to generate energy from sunlight could provide greener solar cells that are friendlier to the environment and living organisms, according to a Kansas State...
One Step Closer to a Quantum Internet
GARCHING, Germany, April 11, 2012 — Communications networks are vital for our day-to-day lives, and now the first prototype of a quantum one has been developed based on interfaces between single atoms and photons. For a quantum network to be useful, the exchange of quantum...
SERS Susses Out Salmonella
ATHENS, Ga., April 11, 2012 — In the future, even the smallest traces of salmonella and other foodborne pathogens may be easily detected using a technology known as surface-enhanced Raman scattering, or SERS.
A Faster, Cheaper Way to Cool Lasers
RALEIGH, N.C., April 10, 2012 — A “heat spreader” that cools electronics 25 percent faster than pure copper could end the hunt for a faster, cheaper way to cool computers and other electronic devices.
Nanoparticle-Laser Method Targets Chemo Drugs
HOUSTON, April 10, 2012 — A potential treatment method for drug-resistant cancer uses gold nanoparticles to convert laser energy into “plasmonic nanobubbles,” which allow chemotherapy drugs to enter single cells. Delivering chemotherapy with nanobubbles is 30 times more...
Laser Creates First EUV Attosecond Pulses
PARIS, April 9, 2012 — For the first time, incredibly fast laser pulses could make it possible to observe ultrarapid phenomena such as the motion of electrons in matter. Laboratoire d’Optique Appliquèe (LOA), Commissariat à l’énergie...
Navy Robocopters to Target Pirates
ARLINGTON, Va., April 9, 2012 — Navy unmanned aircraft will be able to distinguish small pirate boats in congested coastal waters when a US Office of Naval Research-funded sensor starts airborne tests this summer.
Controlling Quantum Tunneling with Light
CAMBRIDGE, England, April 6, 2012 — For the first time, light was used to demonstrate quantum tunneling, pushing electrons through a classically impenetrable barrier.
Ultrathin Solar Cells for Stretchable Applications
LINZ, Austria, April 6, 2012 — An ultrathin flexible organic solar cell less than 2 µm thick could have implications for the design of future flexible electronic devices.
Nearly Lightless Laser Has Bright Future
BOULDER, Colo., April 4, 2012 — A new “superradiant” laser design that traps 1 million rubidium atoms into a 2-cm space between two mirrors produces a deep-red laser beam that could boost the performance of most advanced atomic clocks, communications and navigation systems, and...
Laser Built on a Silicon Chip
SINGAPORE, April 2, 2012 — A laser with a novel mirror design was fabricated on a silicon chip using III-V semiconductor materials — a step toward forward for high-speed optical communications and interconnects on electronics chips.
Silicon Optical Diode for Quantum Information
COLLEGE PARK, Md., April 2, 2012 — Ring resonators can be used to develop micro-optical diodes to replace or be compatible with their electronic counterparts for quantum information.
Avalanche of emissions creates first atomic x-ray laser
LIVERMORE, Calif. – The shortest, purest x-ray laser pulses ever achieved fulfill a 45-year-old prediction and could open the door to new materials, medicines and devices. Physicists from Stanford Linear Accelerator Center (SLAC) created the pulses, which were...
ESA pursues 3-D imaging lidar
PARIS – The European Space Agency (ESA) is developing 3-D imaging light detection and ranging (lidar) as a navigation aid for deep-space exploration. Lidar operates in the same fashion as radar but with shorter wavelengths because it uses light rather...
Handheld rainbow could spawn multispectral tools
BUFFALO, N.Y. – A new kind of polymer that is cheap and easy to make and reflects many different wavelengths of light when viewed from a single perspective could form the basis of handheld multispectral imaging devices. “Such portable technology could...
Instrument to assess aurora’s Alfvén effect on GPS
POKER FLAT RESEARCH RANGE, Alaska – A small rocket recently was launched into the aurora borealis in an attempt to discover how the northern lights affect signals on global positioning system satellites and other spacecraft. The two-stage, 46-foot Terrier-Black Brant rocket...
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