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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), has the potential to facilitate high-volume handling, placement and interconnection of microelectronic components that are smaller than ever before. The comprehensive wafer-to-product electronic packaging technology allows semiconductor chips...
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),...
Laser-Based Method Detects Optical Forces in Blood
WASHINGTON, Oct. 19, 2011 — A new laser-based analysis method can detect optical pressure differences among classes of blood cells, and it doesn't rely on prior knowledge, antibodies or fluorescent labels for discrimination. Scientists at the US Naval Research Laboratory...
Real-Time Imaging Through Concrete Now Possible
CAMBRIDGE, Mass., Oct. 19, 2011 — You no longer have to be from Krypton to see through walls, thanks to new radar technology developed at MIT’s Lincoln Laboratory. Radar “sees” by sending out radio waves that bounce off targets and return to the special...
Kodak Licenses Laser Projection Tech to Imax
NEW YORK, Oct. 18, 2011 — Imax Corp. has struck a deal with Eastman Kodak Co. of Rochester to license numerous laser-projection technologies. The large-screen and dome cinema specialist plans to use the technologies to improve the quality of film presentations in its largest...
Light at the End of the Funnel: IR Becomes EUV
GARCHING, Germany, Oct. 18, 2011 — The energy of IR light pulses has been concentrated with a nanofunnel and used to generate extreme-ultraviolet (EUV) light flashes. These femtosecond flashes are thought to contain trains of attosecond pulses. Attosecond EUV light pulses are an...
Light Moves Electron-Hole Pairs
DELFT, Netherlands, Oct. 18, 2011 — Under the influence of light, electrons have been shown to move freely in layers of linked semiconductor nanoparticles. The breakthrough could lead to the development of cheap and efficient quantum dot solar cells, say researchers at Delft...
Photon Emission from Diamond Controlled
CAMBRIDGE, Mass., Oct. 17, 2011 — Researchers have captured light in tiny diamond pillars embedded in silver, releasing a stream of single photons at a controllable rate. The advance represents a milestone on the road to quantum networks in which information can be encoded in...
Autofocus Lens Mimics the Eye
TRONDHEIM, Norway, Oct. 14, 2011 — Making cell phone cameras work more like the human eye may help overcome limitations in low light sensitivity and focusing. Most cell phones today have built-in cameras, but these are not equipped with autofocus capabilities, as are ordinary...
Smart Petri Dish Provides Lensless Imaging
PASADENA, Calif., Oct. 14, 2011 — Using a smartphone and some Lego blocks, engineers at California Institute of Technology have created a new way to analyze cell cultures on the fly. Because the phone’s imaging chip is used as a quasi petri dish, the Caltech team has...
Using Artificial Vision to Compare Oranges to Oranges
MONCADA, Spain, Oct. 14, 2011 — Scientists have created machines that detect and separate rotten oranges, classify mandarin segments according to their quality, and help citrus fruit pickers out in the field. All prototypes use computer vision to automatically inspect the fruit....
Robotic Telescope Network to be Built
MADRID, Oct. 13, 2011 — A world network of robotic telescopes is to be developed as part of a European citizen science project. The network, which will allow any citizen to connect and share observation time, will offer free open access via the Internet. The project was...

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