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Research & Technology News
IR camera senses hot spots to aid firefighters, military pilots
ORLANDO, Fla. – Firefighters and military pilots often use very cold, cumbersome infrared devices to detect hot spots and see through smoke, but a technology that uses gallium nitride (GaN) could eliminate the need for those conventional instruments. Researchers at the University of Central Florida, led by professors David Hagan and Eric Van Stryland, have discovered that GaN – currently used to read Blu-ray DVDs – could offer an alternative to expensive liquid nitrogen, which boils at —200...
Organic electronics printed on CDs, DVDs
LOS ANGELES – A new patterning technique uses commercially available technology to print conducting polymers using an infrared laser onto standard CDs and DVDs, a feat that could propel current proof-of-concept organic devices – organic LEDs, thin-film...
Plasmonics, Nanophotonics Hybrid Promises Powerful Information Processing
WEST LAFAYETTE, Ind., Nov. 1, 2011 — Metamaterials and the merging of two technologies under development are promising the emergence of new quantum information systems far more powerful than today’s computers. The technology, which involves a plasmonics and nanophotonics hybrid,...
Squeezed light helps measure gravitational waves
HANNOVER, Germany – A new “squeezed light” method improves the sensitivity and accuracy of the interferometers used to measure gravitational waves. Observing the gravitational waves that result from supernova explosions and other cosmic events requires...
Tamed light pulses control electrons
GARCHING, Germany – Physicists have controlled the field of white light pulses on a timescale shorter than an optical oscillation, a step forward in light technology and ultrafast photonics that could lead to light-based electronics. Monitoring the ultrafast...
Through thick and thin: Microscopy reveals fluid viscosity patterns
ITHACA, N.Y. – A high-speed microscopy technique explains the behavior of fluids by observing how micron-size suspended particles dance in real time. Knowledge of how fluids work will help scientists and engineers handle complex fluids ranging from biological...
Tunable graphene device puts terahertz to work
BERKELEY, Calif. – A microscale graphene device that responds strongly to terahertz light and that can be precisely tuned is the first tool in a kit for putting terahertz light to work. At the heart of the device, developed by scientists at Lawrence Berkeley...
Universal digital simulator holds promise for quantum computers
INNSBRUCK, Austria – A new digital approach enables universal quantum simulation in a system of trapped ions that can in principle simulate any physical system efficiently, allowing researchers to explore the dynamics of quantum computers. Previously, quantum...
Compact Laser Frequency Comb Really Goes Places
GAITHERSBURG, Md., Oct. 31, 2011 — A compact laser frequency comb has been developed that is no bigger than a shoebox. Until now, frequency combs usually have been bulky, delicate lab instruments — about the size of a suitcase — that are challenging to operate. The...
Biomolecules Show Their True Colors
DURHAM, N.C., Oct. 28, 2011 — After years of black-and-white and false-color 3-D molecular imaging, events beneath the surface of the skin can now be viewed in their true colors. A novel method detects and shows, for example, the vivid shades of red of hemoglobin as it is...
Lasers Enable High-Volume Handling of Microelectronics
FARGO, N.D., Oct. 27, 2011 — A contactless laser-assisted packaging technology for high-throughput, low-cost assembly of ultrathin semiconductor chips onto rigid and flexible substrates has recently been developed. The technology, called laser-enabled advanced packaging (LEAP),...
Quantum Dot Coating Binds to Biomolecules
ENSCHEDE, Netherlands, Oct. 27, 2011 — A newly developed coating allows quantum dots — considered toxic and unsuitable for use in living organisms — to be used inside the human body, even inside living cells. Scientists studying biological processes often use...
Diode Lasers Produce High-Quality White Light
ALBUQUERQUE, N.M., Oct. 26, 2011 — While LED lighting is widely accepted as the more efficient alternative to the century-old tungsten incandescent bulb, it may soon be dethroned by the diode laser. Researchers at the US Department of Energy’s Sandia National Laboratories...
Laparoscopy with LEDs Improves Pancreatic Cancer Detection
SAN DIEGO, Oct. 26, 2011 — A laparoscopic technique that uses fluorescent light to improve pancreatic cancer staging and treatment is in development. The approach shows promise over conventional laparoscopy with no evidence of side effects. More than 80 percent of...
Optical Cavity Furnace Could Cut Solar Costs
GOLDEN, Colo., Oct. 26, 2011 — A new furnace system for manufacturing solar cells has been developed — an advance that could boost efficiency and cut the cost of producing solar panels in the future. The Optical Cavity Furnace (OCF) is designed to replace the standard...
Laser Approach Advantageous for Cataract Surgery
ORLANDO, Fla., Oct. 25, 2011 — Two new studies on the use of femtosecond laser procedures in cataract surgery back the argument that the technology may be safer and more efficient than the standard procedures used today. According to data presented at the annual meeting of...
Lasers Localize 3-D Matter Waves
CHAMPAIGN, Ill., Oct. 25, 2011 — In the first direct observation of 3-D Anderson localization of matter, laser light has shown the ability to completely localize atoms. The experimental demonstration will show how 3-D conduction is affected by the defects that plague materials,...
Photonic Crystal Controlled by ‘Nanoquake’
MUNICH and SANTA BARBARA, Calif., Oct. 25, 2011 — Until now, the idea of an acoustically modulated photonic crystal merely existed in theory, but a new technique is proving that sound waves can control photonic crystals within a nanocavity. Scientists working for the cluster of excellence...
Tiny Switch Flipped with Light
NEW HAVEN, Conn., Oct. 24, 2011 — Nanomechanical resonators can operate at amplitudes much higher than previously thought — a breakthrough in optomechanics that could have implications for future communications and sensing technologies. Yale engineers recently demonstrated...
Laser Checks Food for Freshness
LUND, Sweden, Oct. 21, 2011 — Most packaged food products are protected from oxidation by a gas such as carbon dioxide or nitrogen. Currently there is no method that can check whether the packaging has the correct gas content, but a new handheld laser instrument that can detect...
New Packard Fellow to Build 3-D Molecule Analyzing Spectrometer
HOUSTON, Oct. 21, 2011 — A laser-based spectroscopic device for seeing the conformation — the shape and orientation — of any molecule, no matter how complex, is in development. The machine, designed for chemists and researchers who are not laser specialists,...
Unique Laser Ion Source Produces Semiconductors
WARSAW, Poland, Oct. 21, 2011 — A unique laser ion source has been built that is equipped with a special system for accelerating ions to a chosen energy and for eliminating admixtures. This device has been used to produce samples of a new generation of semiconductors: a...
Projection Systems that Interact
PITTSBURGH, Oct. 20, 2011 — A system called SideBySide enables animated images from two handheld projectors to interact with each other on the same surface. The SideBySide concept – a self-contained, full-color, handheld projection device allowing multiuser interaction...
Tuning Viruses Creates Complex Biological Tissues
BERKELEY, Calif., Oct. 20, 2011 — A benign virus has been turned into an engineering tool for assembling structures that mimic collagen, considered one of the most important structural proteins in nature. Researchers say this process eventually could be used to manufacture materials...
Chip-Sized Device Converts Beam to Pulses
WEST LAFAYETTE, Ind., Oct. 19, 2011 — A device that can convert continuous laser light into numerous ultrashort pulses and that is small enough to fit on a computer chip has been created by researchers at Purdue University and the National Institute of Standards and Technology (NIST),...
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