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Research & Technology News

Superbright Nanocrystals Advance Biosensing
SYDNEY & ADELAIDE, Australia, Sept. 3, 2013 — The combination of a special kind of nanocrystal known as a SuperDot™ and a unique optical fiber that enables light to interact with nanoscale volumes of liquid has allowed the detection of a single nanoparticle from a distance using light. These superbright, photostable and background-free nanocrystals — three orders of magnitude brighter than quantum dots — enable a new approach to highly advanced sensing technologies using optical fibers.
Agilent Opens Spectroscopy Center in Australia
MULGRAVE, Australia, Sept. 2, 2013 — Agilent Technologies Inc. has opened a $25 million center in Australia for cutting-edge spectroscopy research, laboratory testing and training. “The Spectroscopy Technology Innovation Center is Agilent’s next big leap in developing...
Fiber design could boost Internet bandwidth
BOSTON – A new kind of optical fiber stable enough to transmit donut-shaped laser beams called optical vortices, or orbital angular momentum (OAM) beams, promises to increase bandwidth dramatically to meet today’s ever-increasing demand for...
Fluorescent fingerprint tag IDs ‘hidden’ prints
LEICESTER, England – Criminals might want to think twice before touching anything, now that a new fluorescent tagging technique could yield more usable results from latent fingerprints on metal surfaces. The odds that any two people have identical fingerprints are 64...
Laser-guided codes advance THz imaging
CHESTNUT HILL, Mass. – A single-pixel imaging technique uses laser-guided codes to quickly and efficiently manipulate stubborn terahertz waves, producing clear images in a matter of seconds. Imaging and sensing using terahertz holds the potential to advance areas such as...
Microscopy technique could help make 3-D components
GAITHERSBURG, Md. – A technique developed several years ago to improve optical microscopes has now been applied to monitoring the next generation of computer chip circuit components, providing a crucial tool for developing 3-D components. Through-focus scanning optical...
Multiview 3-D photography simplified
CAMBRIDGE, Mass. – A small checkerboard-patterned plastic film inserted beneath the lens of an ordinary camera can transform the device into a light-field camera capable of producing multiperspective images. Current light-field cameras trade a good deal of resolution...
New photodetector makes do with few photons
COLLEGE PARK, Md. – The fundamental probabilistic nature of light makes it impossible to perfectly distinguish light from dark at very low intensity. Low power and high fidelity in reading data are especially important for secure communications and quantum computation;...
Optical chip enables affordable holographic displays
CAMBRIDGE, Mass. – When Daniel Smalley saw the Mark II holographic video display at MIT, he had to have one. And he will, thanks to a new approach he devised that could produce reasonably priced standard-definition, full-color holograms. “I had to come up with...
Optical microphone listens with light
OSLO, Norway – A nearly 1-mm-thick optical sensor that measures minute movements and extremely quiet sounds could improve the sensitivity of microphones and give them a sense of direction. The technology could enable microphones to “see where the sound comes...
Tabletop device accelerates electrons to 2 GeV
AUSTIN, Texas – Until recently, if you wanted to speed up electrons to 2 gigaelectron volts (GeV), you needed a multimillion-dollar accelerator nearly 200 m long. But not anymore: Now you just need a tabletop device. “We have accelerated about half a billion...
Conference to Explore Laser-based Weather Control
GENEVA, Aug. 30, 2013 — Ultrashort-pulse lasers as an emerging tool for controlling the weather will be the topic of interest at a gathering of atmospheric physicists, meteorologists and climatologists next month at the World Meteorological Organisation in Geneva. The...
Spaghetti-like Surface Makes Stronger SERS Sensor
ZURICH & LIVERMORE, Calif., Aug. 30, 2013 — An innovative plasmonic sensor amplifies the signals of surface-enhanced Raman spectroscopy (SERS) using a novel substrate based on carbon nanotubes with metal-coated tips. Scientists at ETH Zurich and the Lawrence Livermore National Laboratory...
Light to the Heart to Restore Healthy Beats
BALTIMORE, Aug. 29, 2013 — When a person’s heart slows or stops, the current practice is to jump-start it with a blast of electricity from a pacemaker or defibrillator. But a multi-university team aims to put an optogenetic twist on the procedure by replacing the violent jolt...
Existence of New Element Confirmed
DARMSTADT, Germany, Aug. 28, 2013 — Fresh evidence has been provided for the existence of a new, yet-to-be-named superheavy chemical element by measuring photons in connection with its decay. The experiment was conducted at the GSI research facility in Germany by an international team...
For Phasing Nanocrystals, Size Really Matters
BERKELEY, Calif., Aug. 27, 2013 — Size is of much greater importance than previously believed in metal nanocrystals undergoing phase transformations, a finding that has important implications for the future design of hydrogen storage systems, catalysts, fuel cells and batteries.
Lab-Made Antennas Are Sun ‘Sponges’
ST. LOUIS, Aug. 27, 2013 — The evolutionary chemical machinery of nature — and a dash of human ingenuity — have created synthetic light-harvesting antennas that convert sunlight into unprecedented amounts of usable energy.
Army Groups Collaborate on Stronger Laser Protection
ADELPHI, Md., Aug. 26, 2013 — More technologically advanced tools of warfare will put soldiers not only on the offense, but also on the defense, if the army’s Laser Protection Team achieves its mission. The team consists of the US Army Research Laboratory (ARL), the US...
Atomic Clocks Set Stability Record
GAITHERSBURG, Md., Aug. 23, 2013 — At the National Institute of Standards and Technology (NIST), a pair of experimental atomic clocks based on ytterbium atoms has set a new record for stability. Acting like 21st-century pendulums, the clocks have perfect timing and could,...
X-rays Probe Structural Properties of Solids
BERLIN, Aug. 24, 2013 — A new method of using x-rays to probe the properties of solid materials has been created by scientists at the Helmholtz Center Berlin. X-ray free-election lasers combines the optical properties of lasers with the analytic power of x-rays, allowing...
KIT Building PV Facility
KARLSRUHE, Germany, Aug. 21, 2013 — The Karlsruhe Institute of Technology (KIT) will build a photovoltaics facility to provide the solar cells used by the school for its research and energy needs. In cooperation with the module manufacturer Solarwatt, researchers will use the new...
Lab Combines Light, Electron Microscopy Devices
WARSAW, Poland, Aug. 21, 2013 — Nencki Institute’s new Neurobiology Centre has installed a combination of light and electron microscopy devices to help researchers better understand the structure, function and capabilities of the human brain. The center’s Laboratory of...
Nanostructured Holograms Control Light’s Intensity, Phase, Polarization
CAMBRIDGE, Mass., Aug. 21, 2013 — By combining cutting-edge nanotechnology with holograms, applied physicists at Harvard demonstrated a novel way for changing the intensity, phase and polarization of light rays.
OSA System Tracks Government-Funded Research
WASHINGTON, Aug. 20, 2013 — A new service that enables easy reporting of funding sources for scholarly research articles has been launched by The Optical Society (OSA). The FundRef service from CrossRef enables authors to specify the funding agency of their research and allows...
Grant Aims to Make Record-Short Laser Pulse Stronger
BERKELEY, Calif., Aug. 20, 2013 — A University of California, Berkeley, researcher whose team generated a 67-attosecond pulse of extreme UV laser light last summer has received a $6.9 million grant from DARPA to make the pulse 1000 times stronger. Physics professor Zenghu Chang,...

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