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Research & Technology News

Four-wave mixing generates superluminal pulses
GAITHERSBURG, Md. – A novel four-wave mixing technique that restructures parts of light pulses to travel faster than the speed of light could improve the timing of communications signals and help examine the propagation of quantum correlations. Einstein’s theory of relativity states that light passing within a vacuum represents the universal speed of light. A short burst of light emerges as a type of symmetric curve. The curve’s leading edge cannot surpass the speed of light, but the peak of the...
Gamma ray refraction could launch nuclear photonics
GRENOBLE, France – An experiment in which gamma rays were bent like ordinary light overturns decades of theoretical predictions and opens the door to a new field of research called nuclear photonics. Gamma rays are essentially a highly energetic form of light....
Laser creates cheaper free-form optics
AACHEN, Germany – A new 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 inexpensively. High-speed laser ablation of fused...
Release process holds promise for GaN semiconductors
TOKYO – 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 method cheaper and easier, it also expands the potential uses of the...
Single entangled photon creation unlocked
ATLANTA – 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...
Single nanomaterial yields a laser rainbow
PROVIDENCE, R.I. – Nanocrystals that produce red, green and blue laser light from a single material could lead to digital displays and other devices that employ a variety of laser colors simultaneously. Red, green and blue lasers have become small and cheap...
Solar cell-like implant stimulates optic nerve
STANFORD, Calif. – A new retinal prosthesis that uses technology similar to that found in solar cells could restore sight to those who suffer from degenerative eye diseases such as macular degeneration and retinitis pigmentosa. Researchers at Stanford University...
Students’ QDs win regional Cleantech Challenge
SALT LAKE CITY – Students at the University of Utah recently won $100,000 and first place in the regional CU Cleantech New Venture Challenge for their quantum dot technology. Compared with other materials, quantum dots require less energy for emitting light....
Army’s New Weapon: Laser-Guided Lightning
PICATINNY ARSENAL, N.J., June 29, 2012 — Picatinny scientists and engineers are developing a device that will shoot lightning bolts down laser beams to destroy targets. The Laser-Induced Plasma Channel is designed to take out targets that conduct electricity better than the air or ground...
Photonic Crystals Help Fish See in the Murk
LEIPZIG, Germany, June 29, 2012 — The elephantnose fish, thought to be blind, was found to have light-reflecting cups lined with photonic crystals in its retinas that help it navigate in its dark, murky environment. Researchers think this unusual eye structure might inform future...
Photonics Professor Wins Krupp Prize
KARLSRUHE, Germany, June 29, 2012 — The Karlsruhe Institute of Technology photonics professor received the 2012 Alfried Krupp Prize for Young University Teachers, endowed with €1 million.
Light Focused Deep Inside Tissue
PASADENA, Calif., June 28, 2012 — A new procedure that is as simple as an ultrasound more than doubles the depth that light can be focused inside biological tissues and soon could enable doctors to perform incision-free surgery or to diagnose cancer by seeing tumors inside the body.
Solar Cells Slimmed with Nanosandwich
RALEIGH, N.C., June 28, 2012 — A new technique to fabricate slimmer thin-film solar cells without compromising their ability to absorb solar energy could reduce production costs for the technology.
3-D Optical Cavities Made from Metamaterials
BERKELEY, Calif., June 27, 2012 — Three-dimensional nanoscale optical cavities made from metamaterials have the potential to generate the most intense nanolaser beams to date and hold promise for a range of other technologies, including LEDs, optical sensing, nonlinear optics,...
Computer Chips Made Rewritable with Light
NEW YORK, June 27, 2012 — A new technique for making rewritable computer chips uses laser light to control the spin of an atom’s nucleus to encode information, bringing ultrafast quantum computing a step closer to reality.
Telescope Releases Pixel-Packed IR Image
MAUNA KEA, Hawaii, June 26, 2012 — The University of Hawaii released the first image obtained using its new 16-megapixel image sensor on the UH 2.2-m telescope on Mauna Kea. The sensor boasts 16 times the pixel count of an earlier detector developed by the same team and installed on...
Twisting Light Sends Data Speeds Soaring
LOS ANGELES, June 26, 2012 — Beams of light that are twisted and combined to transmit data at dramatically increased speeds soon could lead to the fabrication of high-speed satellite communication links or be adapted for use in fiber optics.
Fluorescing Paint Detects Stress, Strain
HOUSTON, June 25, 2012 — A new type of paint made with fluorescing carbon nanotubes can help detect structural stress and strain remotely, say scientists at Rice University.It provides a big advantage over conventional strain gauges, which must be physically connected to...
All-Carbon Solar Cell Harnesses NIR Light
CAMBRIDGE, Mass., June 22, 2012 — A new all-carbon solar cell developed by MIT taps into near-IR light, a region that is completely unused by today’s solar systems but represents about 40 percent of the solar energy reaching Earth’s surface.
Lasers Find Ice in Moon Crater
WASHINGTON, June 22, 2012 — Using laser light from NASA’s Lunar Reconnaissance Orbiter (LRO) spacecraft, a team found that the floor of Shackleton crater is brighter than those of other nearby craters, which is consistent with the presence of small amounts of ice. Data...
Plasmonic Capabilities of Graphene Brought to Light
SAN DIEGO, and BARCELONA, Spain, June 21, 2012 — Graphene has been found to be an excellent host for guiding, confining and electrically manipulating light, two independent studies report.
‘Supercamera’ Takes Gigapixel Images
DURHAM, N.C., June 20, 2012 — By synchronizing 98 microcameras into a single device, electrical engineers at Duke University and the University of Arizona developed a supercamera that can stitch together images with a resolution of 50 gigapixels, or 50,000 megapixels. Turns out...
Firefly Bioluminescence Could Inform New LEDs
SYRACUSE, N.Y., June 20, 2012 — Syracuse University scientists think that by coating nanorods with firefly enzymes, producing lights that glow without batteries or electricity may be possible.
Prototype Automatically Fills Road Cracks
ATLANTA, June 20, 2012 — An LED- and camera-equipped automated pavement crack detector developed at the Georgia Tech Research Institute requires minimal manpower and can efficiently fill cracks from a moving vehicle.
European XFEL Tunnels Completed
HAMBURG, Germany, June 19, 2012 — The European X-ray Free-Electron Laser international research facility has overcome one of its most difficult building phases: completion of a 3.6-mile-long network of tunnels. By 2015, laserlike x-ray flashes that enable new insight into the...

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