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Research & Technology News
Exotic Form of Silicon Improves Solar Cells
DAVIS, Calif., Jan. 30, 2013 — An exotic form of silicon may improve solar cell efficiency by as much as 70 percent, according to computer simulations conducted by an international team of scientists.
Laser Technique Unravels Spider Silk’s Mysteries
GLENDALE, Ariz., Jan. 30, 2013 — A noninvasive, noncontact laser light scattering technique may be the key to unraveling the secret behind spider silk’s strength.
SPIE Urges Photonics Community to Protect Horizon 2020 Funding
CARDIFF, Wales, Jan. 30, 2013 — A portion of the European Commission’s proposed €80 billion (about $108.5 billion) research and innovation budget for the Horizon 2020 program could be cut, and now SPIE is calling the photonics community to action, urging that the program’s full...
Nanophotonics Enables a New Kind of Optical Spectrometer
HUNTSVILLE, Ala., Jan. 29, 2013 — Combining nanophotonics technology with traditional optical spectroscopy has yielded a new kind of optical spectrometer with sensing and spectral measurement functions.
Progressive Optics Ends Vehicle Blind Spots
DAEJEON, South Korea, and PORTLAND, Ore., Jan. 29, 2013 — The progressive adaptive optics technology commonly used to correct nearsightedness and reduced focusing ability has now been applied to a prototype automobile side mirror that has no blind spots and that doesn’t distort images.
‘Li-Fi’ Could Unleash the Internet in Your Lights
GLASGOW, Scotland, Jan. 28, 2013 — Imagine simultaneously powering your laptop, displaying information and delivering Wi-Fi-like communications, all with the same LED technology used to illuminate your home. This radical, distinctive vision could soon be a reality with micron-size...
Arresting Epileptic Seizures with Fiber Optics
IRVINE, Calif., Jan. 28, 2013 — Unpredictable epileptic seizures can now be stopped in their tracks with a new approach that activates optical fibers implanted in the brain when a computer system detects a real-time seizure.
Single-Photon Detector Is On Chip
KARLSRUHE, Germany, Jan. 25, 2013 — By integrating single-photon detectors with nanophotonic chips, an international team of scientists has developed a way to reliably detect single photons for optical data transmission and quantum computations.
Nanolens Microscopes Detect Viruses Such as Flu
LOS ANGELES, Jan. 24, 2013 — As the flu spreads like wildfire across the US, quickly diagnosing patients with aches, pains, fever and chills has never been more important. A new optical microscopy method aims to do just that by using tiny liquid lenses that self-assemble around...
Thin-Film Solar Cell Efficiency Exceeds 20 Percent
DÜBENDORF, Switzerland, Jan. 24, 2013 — Thin-film solar cells on flexible polymer foils, based on copper indium gallium (di)selenide (CIGS), have set an efficiency record of 20.4 percent for converting sunlight into electricity.
Laser Coaxes Silica Microwires to Self Assemble
SYDNEY and PARIS, Jan. 23, 2013 — Water droplets in which silica nanoparticles are suspended can be carefully controlled with an ultraviolet laser technique that coaxes them to self-assemble into highly uniform nanowires, heralding a new generation of integrated optical devices.
Plastic Spray Coating Boosts CMOS Sensors
MUNICH, Jan. 23, 2013 — A cost-effective spray coating process that involves an ultrathin film made up of organic compounds has boosted the performance of CMOS sensors.
Nanowire Solar Cells Soak Up Sunlight
LUND, Sweden, Jan. 22, 2013 — Nanowires created from indium phosphide have shown potential for drastically improving solar cell efficiency and costs.
Optical Projection Moves from VIS to IR
UMEÅ, Sweden, Jan. 22, 2013 — A new imaging method enables optical projection tomography to be extended from the visible to the near-IR spectrum, allowing the study of different types of cells in one preparation and the use of different contrast agents. The findings could be...
Active and Passive Modes in One IR Camera
EVANSTON, Ill., Jan. 21, 2013 — A new approach that integrates active and passive infrared (IR) imaging capability into a single chip has paved the way toward lighter, simpler dual-mode active/passive cameras with lower power dissipation.
New Material Warms White LEDs
ATHENS, Ga., Jan. 21, 2013 — The cold, bluish light of current white LEDs has precluded their widespread use for indoor lighting, but a new LED prototype uses a single light-emitting material, or phosphor, with a single emitting center to produce a warm white glow that could...
Image Compressor Beats JPEG
DURHAM, N.C., Jan. 18, 2013 — Unlike jpeg algorithms, which compress an image after it is taken, a new low-profile metamaterial sensor uses microwave imaging to compress pictures as they are being recorded.
Lunar Orbiter Lasers Mona Lisa to Moon
GREENBELT, Md., Jan. 18, 2013 — NASA’s next moon mission has the acronym LADEE (Lunar Atmosphere and Dust Environment Explorer), but they’ve already sent a lady to the moon — or at least the image of one.
Graphene Plasmonics Beat the Drug Cheats
MANCHESTER, England, and MARSEILLE, France, Jan. 17, 2013 — A simple optical system using graphene plasmonics can potentially see a single molecule and can analyze its composition within minutes. The advance could lead to more sensitive drug testing of professional athletes.
Intel, FB Team to Move Photonics into Data Centers
SANTA CLARA, Calif., Jan. 17, 2013 — Intel Corp. is collaborating with Facebook to define the next generation of rack technologies used to move huge amounts of information through the world’s largest data centers, the companies announced this week at the Open Compute Summit in...
Webb Telescope Completes Optical Milestone
BOULDER, Colo., Jan. 17, 2013 — NASA’s James Webb Space Telescope aft-optics subsystem (AOS) has passed performance testing at Ball Aerospace & Technologies Corp., setting another optical milestone.
Device Tosses Out Unusable PV Wafers
GOLDEN, Colo., Jan. 16, 2013 — Manufacturers need better, less expensive ways to make photovoltaics, and now a solar furnace that kicks out unusable silicon wafers before they become solar cells could potentially save the industry billions of dollars annually.
Light-Activated Hydrogel Repairs Cartilage
BALTIMORE, Jan. 15, 2013 — Runners and knee pain sufferers, take heed. A new squishy biomaterial called a hydrogel could help repair damaged cartilage when activated with light, giving those achy joints some relief.
Multijunction Solar Cell Design Could Exceed 50% Efficiency
WASHINGTON, Jan. 15, 2013 — A lattice-matched, triple-junction solar cell proposed by an international team of scientists has the potential to break the 50 percent conversion efficiency mark, a goal in multijunction photovoltaic development.
How to Treat Heat Like Light
CAMBRIDGE, Mass., Jan. 14, 2013 — A new technique makes it possible to manipulate heat as if it were light, an advance that could improve thermoelectric devices, create thermal diodes or achieve thermal cloaking.
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