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Research & Technology News
Nanolaser Operates Below 3-D Diffraction Limit
AUSTIN, Texas, July 26, 2012 — Growing a smooth layer of silver onto a silicon substrate has improved the performance of nanolasers, offering a breakthrough for emerging nanophotonic devices with applications ranging from computing to medicine.
$125M US-India Initiative Drives WUSTL Solar Expansion
ST. LOUIS, July 25, 2012 — As part of the $125 million US-India Initiative for Clean Energy announced this year, engineers at Washington University in St. Louis will work on low-cost solar cells as well as systems that integrate solar cells with batteries. The technology is...
Photonics to Drive Investment Boost in Advanced Manufacturing
BELLINGHAM, Wash., July 25, 2012 — Photonics technologies are already key enablers of advanced manufacturing, and new initiatives to boost the US’s capabilities in that area will be a good use of the country’s photonics R&D, leaders of SPIE, the international society...
Space Institute Develops Cancer-Fighting Laser
TULLAHOMA, Tenn., July 25, 2012 — A new technique that harnesses the power of femtosecond lasers to seek, acutely map and noninvasively destroy cancerous tumors could benefit brain cancer patients.
Laser Devised for On-Chip Optical Connections
ARLINGTON, Texas, July 24, 2012 — A new 2-µm-high surface-emitting laser for on-chip optical connections could give computers a huge boost in speed and energy efficiency.
First Nonpolar Violet VCSEL Reported
SANTA BARBARA, Calif., July 23, 2012 — The first violet nonpolar vertical-cavity surface-emitting lasers based on m-plane gallium nitride semiconductors have been developed and could lead to higher optical efficiency lasers at reduced manufacturing costs for lighting, displays and sensor...
Seeded FELs Demonstrated in China
BEIJING, July 23, 2012 — The first successful lasing of a free electron laser with an echo-enabled harmonic-generation scheme holds promise for the production of a coherent laser at short wavelengths down to the x-ray regime.
Nanohole-Based Sensors Ideal for Medical Diagnostics
SINGAPORE, July 20, 2012 — Novel molecular sensors based on thin metallic films with nanoholes hold promise for medical diagnostic applications where it is necessary to detect small quantities of molecules.
Telescopes Team to Make Sharpest Observation Ever
GARCHING, Germany, July 20, 2012 — Three telescopes spaced thousands of miles apart were linked together to capture the sharpest direct observation of the center of a distant galaxy: the bright quasar 3C 279, which has a supermassive black hole at its core. The observation represents...
Loops of Light Optically Detect Single Molecules
LEUVEN, Belgium, July 19, 2012 — A new nanoscale light-manipulation method that optically detects single molecules could be used in a variety of photochemistry applications and could help advance technologies for visualizing single molecules and multiple-molecule interactions.
Light Efficiency in LC Projectors Nearly Doubled
RALEIGH, N.C., July 18, 2012 — A new polarization technology that nearly doubles the energy efficiency of liquid crystal projectors could result in smaller, lower-cost devices with longer battery lives and significantly lower heat levels.
Antennas Capture, Upconvert Weak IR Light
GRONINGEN, the Netherlands, July 17, 2012 — A technique that uses special molecules as light antennae to harvest the energy from weak infrared light has been found to amplify the process 3300 times and could lead to improved solar cells and medical imaging techniques.
NIF’s 500-TW Laser Shot Sets Record
LIVERMORE, Calif., July 17, 2012 — The National Ignition Facility’s 192-beam laser system delivered a record-breaking 500 TW of peak power and 1.85 MJ of ultraviolet laser light to its target, validating laser performance specifications set at the facility in the late 1990s.
Sensor Warns of Yacht’s Breaking Point
MUNICH, July 17, 2012 — A new fiber Bragg grating sensor system that measures the forces acting on a yacht’s sail could help to detect weak points in time to warn yachtsmen when a boat has reached its breaking point.
Graphene-Silicon PICs for Low-Power Telecom
NEW YORK, July 16, 2012 — A one-carbon-atom-thick sheet of graphene has transformed a passive device into an active one that generates microwave photonic signals and performs parametric wavelength conversion at telecommunication wavelengths. This optical nonlinear behavior...
Plasmonic Chains Act Like Polymers
HOUSTON, July 16, 2012 — New research that seeks to establish points of reference between plasmonic particles and polymers might lead to smaller computer chips, better antennae and improvements in optical computing.
Spintronic OLED Promises Brighter Displays
SALT LAKE CITY, July 13, 2012 — A new spintronic OLED that produces an orange color holds promise for brighter, cheaper and more environmentally friendly LEDs than the traditional ones used in television and computer displays, lighting and electronic devices.
Laser Breaks Neutron Beam Record
LOS ALAMOS, N.M., July 12, 2012 — The largest neutron beam ever achieved using a short-pulse laser could lead to more advanced materials measurement.
Metamolecules Change Chirality Under Light
BERKELEY, Calif., July 11, 2012 — For the first time, the chirality of artificial molecules has been switched from a right-handed to a left-handed orientation using a light beam. The discovery holds potential for a range of terahertz technology applications, including biomedical...
Portrait of a Single Atom
BRISBANE, Australia, July 11, 2012 — The shadow of a single atom was photographed for the first time using a superhigh-resolution microscope, a discovery that could help scientists confirm their understanding of atomic physics and be useful for quantum computing.
Headlights Shine Between – Not Through – Raindrops
PITTSBURGH, July 10, 2012 — A new smart headlight system that can see around water droplets could help drivers navigate roadways during heavy rain- and snowstorms.
Quantum Interference Fine-Tuned by Berry Phase
BRISTOL, England, July 10, 2012 — A three-decades-old formula for phase shifting has been used to accurately control quantum interference between atoms, paving the way for fault-tolerant circuits in photonic quantum simulators.
Optical Microscope Detects Rare Cancer Cells
LOS ANGELES, July 9, 2012 — A new optical microscope that easily detects rare cells in real time could help doctors diagnose diseases earlier and could monitor disease treatments.
Robotic Camera Mimics Eye Movement
ATLANTA, July 9, 2012 — Piezoelectric materials that allow a robot’s camera eye to replicate the muscle motion of a human eye could help make safer, more effective robotic tools for MRI-guided surgery and robotic rehabilitation.
Atoms Signal Their Entanglement
MUNICH, July 6, 2012 — For the first time, two atoms 20 meters apart have signaled their entanglement, a significant step forward for the study of quantum entanglement and the development of practical applications such as quantum computing and communications networks.
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