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Research & Technology News

Graphene Still a Great Thermal Conductor
CHESTNUT HILL, Mass., April 14, 2010 — The single-atom thick material graphene maintains its high thermal conductivity when supported by a substrate, a critical step to advancing the material from a laboratory phenomenon to a useful component in a range of nano-electronic devices. The team of engineers and theoretical physicists from the University of Texas at Austin, Boston College, and France’s Commission for Atomic Energy report the super-thin sheet of carbon atoms – taken from the three-dimensional material...
Size is Key for Hollow Nanoparticles
RALEIGH, N.C., April 14, 2010 — Size plays a key role in determining the structure of certain hollow nanoparticles, according to a new study from North Carolina State University. The researchers focused on nickel nanoparticles, which have interesting magnetic and catalytic...
Gold-Silver Nanocages Improve Imaging
WEST LAFAYETTE, Ind., April 13, 2010 — An experimental ultrasensitive medical imaging technique that uses pulsed laser and tiny metallic “nanocages” might enable both the early detection and treatment of disease. The system works by shining near-infrared laser pulses through...
Graphene Clears Major Fabrication Hurdle
BERKELEY, Calif., April 13, 2010 — Graphene, the two-dimensional crystalline form of carbon, is a potential superstar for the electronics industry. With freakishly mobile electrons that can blaze through the material at nearly the speed of light – 100 times faster than...
Third Frontier Funds YSI-UC Team
CINCINNATI, April 13, 2010 — The Ohio Third Frontier Commission has approved a $1,127,873 award to YSI Inc. of Yellow Springs, Riehl Engineering Ltd. of Dayton and the University of Cincinnati (UC) for their “Advanced Modified Carbon Nanotube-Based Nutrient Sensor”...
"Totally new physics" yields first germanium laser
BOSTON – It’s the very first germanium laser capable of emitting wavelengths useful for optical communications. It’s also the first operable at room temperature. And this new laser not only holds promise for optical computing but also proves that...
Cooling goes cryogenic
ALBUQUERQUE, N.M. – All-solid-state laser cooling, or “optical refrigeration,” a technique that can be applied to airborne and space-borne sensors, has been demonstrated by a team at the University of New Mexico under the direction of Mansoor Sheik-Bahae, a...
Developing attosecond spectroscopy for lasers with longer pulse durations
MANHATTAN, Kan. – The development of high-speed photography in the 19th century demonstrated to equestrians and other interested parties that all four of a horse’s hooves leave the ground when it runs, presumably settling bar bets from Saratoga, N.Y., to...
Dialing up the laser power
AUSTIN, Texas – Over the past 20 years, physicists have been steadily stepping up the power of lasers from the previously impressive terawatt level to the recently realized petawatt level. Now, researchers at the University of Texas are working toward building the...
Fiber-Based Solar Cell Earns Patent
WINSTON-SALEM, N.C., April 12, 2010 — A promising new solar cell, developed out of Wake Forest University, has received its first formal patent from the Euopean Patent Office. According to Dr. David Carroll, the director of Wake Forest’s Center for Nanotechnology and Molecular...
Giving a lift to thin films
Villigen, Switzerland – If you have ever played with one of those desk ornaments with the suspended metal balls called a Newton’s cradle, you know that when you pull back and release one or more balls on one side, an identical number of balls on the other side moves...
Hitting the light switch for magnetic manipulation
WEST BENGAL, India – Reversing the magnetic properties of materials is the underlying reality behind computer hard drives, audiotape and other recording media. For these purposes, changing the magnetic state of macroscale particles suffices, but efforts are under way to...
LEDs lead to change for some silver
OTTAWA – Adding a touch of silver can improve several photonic endeavors, such as surface-enhanced Raman scattering, surface-enhanced fluorescence and surface plasmon resonance spectroscopy. The metal amplifies the otherwise minute emissions that must be...
Optical WLAN is fast, secure and green
UNIVERSITY PARK, Pa. – Researchers at Pennsylvania State University have demonstrated optical wireless transmission using a diffused light setup with speeds exceeding 1 Gb/s, opening the door for bandwidth-hungry applications such as high-resolution video to go wireless....
Time shifts with faster-than-light photons
GAITHERSBURG, Md. – Experiments with faster-than-light photons are highlighting the weird world of quantum tunneling. Researchers at the Joint Quantum Institute (JQI) have boosted single photons to seemingly faster-than-light speeds through a stack of materials by...
Gold Nanoprobes Monitor Disease
ENDINBURGH, Scotland, April 9, 2010 — Tiny chemical sensors implanted into patients could help diagnose disease and track its progress, following a development by scientists. Researchers at the University of Edinburgh have developed tiny probes comprising gold-coated particles....
New Plastics for Cheaper Solar Panels
PRINCETON, N.J., April 9, 2010 — Newly produced, electricity-conducting plastics could dramatically lower the cost of manufacturing solar panels. By overcoming technical hurdles to producing plastics that are translucent, malleable and able to conduct electricity, Princeton...
Reaching Beyond the Quantum Limit
GARCHING, Germany, April 9, 2010 — For the first time scientists have succeeded in generating multi-particle entanglement on an atom-chip. This technique opens a way to significantly enhance the precision of chip-based atomic clocks or interferometers and could also form the basis...
SPIE DS&S: New Tech, New Uses
ORLANDO, Fla., April 9, 2010 — "We are in a period of significant change and uncertainty," said Zachary J. Lemnios during his symposium-wide plenary lecture Tuesday morning at the SPIE Defense, Security & Sensing conference and trade show. The SPIE Defense, Security &...
Combing a Qubit
COLLEGE PARK, Md., April 8, 2010 — By adapting an optical frequency comb researchers have found a way to manipulate quantum bits (qubits). According to physicists at the University of Maryland, this discovery will be vital for the future of quantum computers. Conventional methods for...
New Spintronics Material for Next-Gen Chips
LOS ANGELES, April 8, 2010 — As the electronics industry works toward developing smaller and more compact devices, the need to create new types of scaled-down semiconductors that are more efficient and use less power has become essential. Researchers from UCLA's Henry...
Ion Trap for Quantum Computing
GAITHERSBURG, Md., April 7, 2010 — Physicists at the National Institute of Standards and Technology (NIST) have built and tested a device for trapping electrically charged atoms (ions) that potentially could process dozens of ions at once with the most versatile control of any trap...
Nanoscale Frictional Characteristics Revealed
PHILADELPHIA, Pa., April 7, 2010 — Friction force microscopy has been used to determine the nanoscale frictional characteristics of four atomically-thin materials, in the process discovering a universal characteristic for these very different materials. Nanotechnology researchers...
Nanotubes Create Atomic ‘Black Hole’
CAMBRIDGE, Mass., April 7, 2010 — Carbon nanotubes, long touted for applications in materials and electronics, may also be the stuff of atomic-scale black holes. Physicists at Harvard University have found that a high-voltage nanotube can cause cold atoms to spiral inward under...
Hubble Proves Cosmic Acceleration
LEIDEN, the Netherlands, April 5, 2010 — A group of astronomers led by Tim Schrabback of the Leiden Observatory conducted an intensive study of more than 446,000 galaxies, resulting in independent confirmation that the expansion of the universe is being accelerated by the mysterious...

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