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Research & Technology News
Nanocrystal Films Promising for Photonic Circuits
CAMBRIDGE, Mass., Aug. 24, 2012 — A new process for patterning defect-free nanocrystal films with nanometer precision could advance photonic devices and basic physics research.
Phase-Shifted Flat Lens Creates Perfect Image
CAMBRIDGE, Mass., Aug. 24, 2012 — By moving the phase shifting of light to the surface of a lens instead of creating phase delays as it propagates through a material, Harvard engineers have created an ultrathin, flat lens that could potentially replace bulk components in optical...
Semiconductor Laser Sets Surface-Emission Record
DARMSTADT, Germany, Aug. 23, 2012 — A semiconductor laser that emits light over a wavelength range of 100 nm sets a record for a single semiconductor laser and could enable more efficient telecommunications networks and gas sensors.
Glasses-Free 3-D on the Horizon
SEOUL, South Korea, and BERLIN, Aug. 22, 2012 — Since the early days of cinema, engineers and scientists have tried to create a way to add the illusion of depth to projected images. Even with the latest technology, cumbersome 3-D glasses are needed to get the full 3-D experience.
Mars Rover’s Laser Zaps First Target
LOS ALAMOS, N.M., Aug. 22, 2012 — NASA’s Mars rover Curiosity fired its laser for the first time on Mars this week, hitting a fist-sized rock with 30 pulses, each delivering more than 1 million watts of power. The achievement was just the beginning of a two-year mission that...
Optical Microscope Exceeds Diffraction Limit
AMSTERDAM, LONDON and BARCELONA, Spain, Aug. 22, 2012 — An optical microscope that combines electronic excitation and optical detection has broken Abbe’s diffraction limit. The nanoscale imaging method offers insight into how light and complex photonic materials interact and could lead to enhanced...
Guidelines Needed to Advance Diagnostic Accuracy
NEW YORK, Aug. 21, 2012 — Tiny mechanical microscopes — those that can see inside single living cells — increasingly are being used to diagnose illness in hard-to-reach areas of the body, but specialists say they need improved, standardized guidelines to advance...
Laser’s Cousin Comes In from the Cold
TEDDINGTON, England, Aug. 21, 2012 — A new solid-state maser capable of operating at room temperature could enable more sensitive medical instruments, improved chemical sensors, and better radio telescopes, among other applications.
Quantum Effects Observed in Optomechanical System
BERKELEY, Calif., Aug. 21, 2012 — The first direct observations of distinctly quantum optical effects — amplification and squeezing — have been recorded in an optomechanical system. The step forward points the way to low-power quantum optical devices and enhanced...
Method ‘Tags and Tracks’ DNA Looping
DALLAS, Aug. 20, 2012 — A “tag and track” method using fluorescent molecules not only sheds light on how DNA loops form, but also might be adapted to screen drugs for effectiveness against certain viruses that shuffle genetic material, such as HIV.
Technique Expands Range of X-ray Research
ARGONNE, Ill., Aug. 20, 2012 — A new technique takes much of the “guesswork” out of x-ray imaging by combining high-resolution and 3-D viewing, allowing the surface of materials to be viewed nondestructively for the first time. The findings expand the range of x-ray research...
Color-Coded Markers Diagnose Disease Through Eyes
SAN DIEGO, Aug. 17, 2012 — New fluorescent probes that change color when they encounter brain disease markers found in the eye could offer a simpler way to identify neurodegenerative disease and distinguish between closely related disorders such as Parkinson’s, Alzheimer’s...
Glowing Molecules Turn On, Off to Visualize Cell Activity
CORAL GABLES, Fla., Aug. 17, 2012 — Using UV light to switch fluorescent molecules on and off in aqueous environments could help scientists develop better fluorescent probes for biomedical research.
Nanocoating Keeps Solar Panels Clean
HOUSTON, Aug. 17, 2012 — A novel nanoparticle coating repels dust, pollen and other particles, and could keep solar panels clean and operating at their peak efficiency longer than conventional panels.
Future Light Component Produced in Printing Press
UMEÅ, Sweden, Aug. 16, 2012 — A new roll-to-roll compatible process can produce organic light-emitting electrochemical cells under ambient conditions, which could lead to large-area light-emitting devices used in informative displays, and, later, in lighting applications.
Metamaterial Moves Photons in Single Direction
CAMBRIDGE, Mass., Aug. 15, 2012 — A new metamaterial can channel photons in one direction, and could point the way to more efficient and faster computer chips that use light to move data.
Scalable Sapphire Seen as Superior to Silica for Fiber Optics
CLEMSON, S.C., Aug. 15, 2012 — Transforming scalable sapphire into a fiber that can withstand greater light intensity provides an easily accessible, low-cost solution for fiber optics using common materials.
First Full-Color Image at 100,000 dpi
SINGAPORE, Aug. 14, 2012 — A method of printing metal-laced, nanometer-sized structures has created full-color images at 100,000 dots per inch, revolutionizing the way images are printed. The technology could be further developed for high-resolution reflective color displays...
LHC Experiments Shed Light on Primordial Universe
GENEVA, Aug. 14, 2012 — The primordial particles of matter that existed just after the big bang are now being re-created in the Large Hadron Collider to advance understanding of the kind of matter that existed in the first seconds of the universe.
NASA Teams to Advance Small Spacecraft Technologies
WASHINGTON, Aug. 14, 2012 — Teams have been named to advance radio communications, formation flying and docking systems for NASA’s Small Spacecraft Technology Program.
Report Hails Photonics as Hope for US Economy
WASHINGTON, Aug. 14, 2012 — A national photonics initiative would not only advance the economy in the US but also enable growth in applications of optical science and technology, according to a new report from the US National Academy of Sciences that identifies research...
DARPA Seeks Ultrafast Laser Science Proposals
ARLINGTON, Va., Aug. 13, 2012 — DARPA is looking to fund projects to develop ultrafast laser applications including microwave generation, optical time transfer, laser-driven secondary radiation generation and attosecond science through its Pulse (Program in Ultrafast Laser Science...
Surprising Quantum Source Yields Info Advantage
SINGAPORE, Aug. 13, 2012 — Quantum entanglement may not always be necessary to run quantum computers, new research suggests. Moreover, technologies discovered over the past few years can gain a quantum advantage without entanglement.
X-Ray Beam Refined to Scalpel Precision
MENLO PARK, Calif., Aug. 13, 2012 — A thin sliver of diamond has transformed the Linac Coherent Light Source (LCLS) into a precise tool for studying and manipulating matter at the atomic level - and may enable experiments that have never before been possible.
For New Applications, Give Photonic Fiber a Twist
ERLANGEN, Germany, Aug. 10, 2012 — Simple longitudinal twists that convert photonic crystal fibers into filters were measured and theorized upon; the results suggest new applications in optical communications and will enable the construction of sensors, light amplifiers and lasers.
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