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Research & Technology News

Novel Plasmonic Material Discovered
WEST LAFAYETTE, Ind., March 30, 2012 — Titanium nitride, the first nonmetal to be added to the short list of surface-plasmon-supporting materials, could bridge the gap between optics and electronics. The advance could point the way to a new class of optoelectronic devices with unprecedented speed and efficiency. Until now, the best candidates for plasmonic materials were gold and silver. However, these noble metals are not compatible with standard silicon manufacturing technologies, limiting their use in commercial products....
Quantum Plasmon Resonance Illuminated
STANFORD, Calif., March 29, 2012 — Plasmon resonance at the nanoscale, the phenomenon responsible for the vibrant hues of stained-glass windows, can kill cancer cells and has the potential to drive forward quantum optics and bioimaging, new research suggests. Plasmon resonance is...
Cell Repair Seen in Real Time
KARLSRUHE, Germany, March 29, 2012 — Cell membrane repair in a living organism was observed for the first time in real time using a high-resolution fluorescence imaging technique. The findings may contribute to the development of therapies for human myopathies and pave the way for new...
Laser Mixing Generates Multifrequency Light
SANTA BARBARA, Calif., March 29, 2012 — A groundbreaking laser mixing technique can manipulate electron-hole collisions to create many frequencies of light simultaneously. This mechanism for ultrafast light modulation has potential applications in high-speed optical communications.
Nanostars Seen as Superior for SERS
HOUSTON, March 29, 2012 — Synthesized starfruit-shaped gold nanorods could strengthen applications that rely on surface-enhanced Raman spectroscopy.
Quantum Dot Solar Cell Efficiency Boosted
BUFFALO, N.Y., March 29, 2012 — A collaboration between the US Army Research Laboratory (ARL) and State University of New York (SUNY) at Buffalo has led to the potential to boost the efficiency of quantum dot solar cells by a factor of two. The discovery could lead to lighter...
Seeking to Unify Physics with Mirrors
VIENNA, March 29, 2012 — An experiment designed to observe quantum interactions at the Planck scale could, if successful, help bridge the gap between quantum mechanics and general relativity. It would also remove the need to rely on high-energy experiments or distant cosmic...
New Tool Images Biomolecules
BERKELEY, Calif., March 28, 2012 — For the first time, optical nanoantennas can harness the power of plasmonics to study the dynamics of cell membrane biology. A unique artificial biological platform combines a fluid bilayer of lipid molecules with a fixed pattern of nanoantennas to...
PV Goes 3-D
CAMBRIDGE, Mass., March 28, 2012 — A new 3-D configuration for photovoltaic cells can generate 20 times more power than standard fixed flat panels with the same base area.
Swarm of Satellite-Operated Lasers for Asteroid Deflection
GLASGOW, Scotland, March 28, 2012 — A swarm of small satellite-operated lasers could deflect asteroids headed for a catastrophic collision with Earth, a discovery that could radically change asteroid deflection technology.
MIT Triggers Total Fear Recall in Mice
CAMBRIDGE, Mass., March 27, 2012 — An optogenetic technique that uses light to target specific populations of neurons in the brain was used to make mice recall fear memories and respond by freezing. Scientists at MIT used the technique to learn whether memory traces, known as memory...
Thermal Cloak Hides Heat
PARIS, March 27, 2012 — In a new approach to invisibility cloaking, French researchers propose isolating or cloaking objects from sources of heat — essentially “thermal cloaking.”
Lasers Boost Standoff Sensing
OAK RIDGE, Tenn., March 26, 2012 — A dual-laser pump-and-probe system developed at Oak Ridge National Laboratory enables the identification of biological agents and chemicals from a distance.
Photoacoustic Imaging Moves into Clinic
ST. LOUIS, March 26, 2012 — Photoacoustic tomography, which combines the best qualities of ultrasound and light absorption, can now provide clinicians with multicontrast images of biological tissue several inches below the skin’s surface.
Inner Life of Magnets Exposed
BOULDER, Colo., March 22, 2012 — Specialized x-ray lasers reveal the inner workings of magnets, a discovery that could lead to smarter, faster computers.
Microlens Arrays from a Test Tube
POTSDAM, Germany, March 22, 2012 — Simple calcium carbonate precipitation at ambient conditions can produce microlens arrays of uniform size and focal length, a cheaper alternative to lithographic techniques for making inorganic-based materials.
NIF Fires Record-Setting Laser Shot
LIVERMORE, Calif., March 22, 2012 — The 192 lasers fired in unison at the National Ignition Facility this week delivered a record 1.875 million joules of ultraviolet laser light to its target chamber, exceeding NIF’s original design specification and setting the stage for...
Proteins Shine a Brighter Light on Cellular Processes
GRENOBLE, France, March 22, 2012 — A molecule capable of emitting turquoise light within living cells three times brighter than ever achieved could improve the sensitivity of cellular imaging.
Laser ‘Unprinter’ Vaporizes Toner
CAMBRIDGE, England, March 21, 2012 — A laser device that vaporizes photocopied ink from paper could soon be in offices worldwide.
Laser-assisted Camera Images Around Corners
CAMBRIDGE, Mass., March 21, 2012 — Using reflections from a non-mirrored surface, a new ultrafast time-of-flight imaging technique recovers 3-D shapes hidden from sight, essentially allowing the camera to capture images around corners.
Optical Drive Etches Graphene Supercapacitors
LOS ANGELES, March 21, 2012 — The search for an optimal electrochemical capacitor has been held up by the need for an electrode with energy density comparable to that of a battery. A novel graphene-based electrode, produced with a standard LightScribe DVD optical drive, could...
Simulations Shed Light on Dark Solitons
XI’AN, China, March 20, 2012 — The occurrence of multiple solitary optical waves, called dark photovoltaic spatial solitons, has now been described in a theoretical model using the beam propagation method.
Attosecond Laser Takes Aim at Holy Grail of Chemistry Research
LONDON, March 19, 2012 — Ultrafast pulses of laser light have been fired at oxygen, nitrogen and carbon monoxide molecules and could pave the way toward imaging the movement of atoms and their electrons as they undergo chemical reactions — one of the holy grails of...
IR Material Creates Holograms
DURHAM, N.C., March 19, 2012 — A newly developed metamaterial construct could create holograms in the infrared range for the first time.
Laboratory Lightning Strikes More than Twice
PALAISEAU, France, March 16, 2012 — With the help of a laser-based lightning rod, laboratory-generated lightning was coaxed to strike the same place not just twice but numerous times, and contrary to the path of least resistance. This advance demonstrates the potential of laser-based...

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