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Research & Technology News

Microscopic Imaging Improved
MUNICH, and VILLIGEN, Switzerland, Feb. 22, 2013 — To obtain sharp images using x-ray microscopy, instruments and samples must remain completely still, even at the nanometer scale, during the recording. Now, reliable images can be produced using a new method of interpretation that relaxes these tough restrictions.
Nanoscale SiLEDs Emit Multiple Colors
KARLSRUHE, Germany, Feb. 22, 2013 — Highly efficient LEDs composed of silicon nanocrystals but without heavy metals can now emit light in a variety of colors.
Waveguide Collects Light More Efficiently
BUFFALO, N.Y., Feb. 21, 2013 — Catching rainbows just got easier with an advanced waveguide that slows light. The advancement in photonics could lead to technological breakthroughs in solar energy, stealth technology and other areas of research.
Image Sensor is Transparent, Circuit-Free
LINZ, Austria, Feb. 20, 2013 — A flat, transparent and circuit-free polymer sheet may provide an entirely new way of capturing images, or may act as a touch-free user interface that could seamlessly overlay a television or other display technology.
Utah Engineers Pioneer New Field in Materials Science
SALT LAKE CITY, Feb. 20, 2013 — Shuttling information at the speed of light in quantum computers and other high-speed electronic devices may be feasible with organic materials that conduct electricity on their edges, but acts as an insulator inside, new theoretical calculations...
X-Ray Laser Observes Photosynthesis in Action
MENLO PARK, Calif., Feb. 20, 2013 — The structure and chemical behaviors of a natural catalyst involved in photosynthesis were observed simultaneously for the first time, using an x-ray laser. The discovery opens a new window on the way plants generate the oxygen we breathe.
Device Creates Multiple ‘Ghosts’
SINGAPORE, Feb. 19, 2013 — An optical device that uses metamaterials and optical scattering to “engineer” multiple ghosts — the holy grail of the fields of optical illusions, electromagnetics and radar detection — offers new possibilities for cognitive deception through the...
Laser Proposed to Vaporize Threatening Asteroids
SANTA BARBARA and SAN LUIS OBISPO, Calif., Feb. 19, 2013 — Given that a meteorite exploded over Russia on Friday while the 2012 DA14 asteroid passed close to Earth, there has never been a better time to develop defensive measures against threats from space.
Roman Cup Inspires New Nanoplasmonic Sensor
URBANA, Ill., Feb. 15, 2013 — An ultrasensitive plasmon resonance sensor that utilizes optical characteristics first demonstrated by the ancient Romans could provide a tool for chemical, DNA and protein analysis.
Probe Emits Light in Living, Unharmed Cells
STANFORD, Calif., Feb. 14, 2013 — A new class of light-emitting probes small enough to be injected into individual cells without harming them could provide new ways of exploring the dynamics of living cells.
Laser Device Images, Tracks Cells, Dye-free
LAUSANNE, Switzerland, Feb. 13, 2013 — Without contrast dyes or fluorophores, a new device can image and track living cells’ reactions to various stimuli and create 3-D images of biological tissue at the nanoscale in just minutes.
Hybrid Light and Sound Imaging System Wins NSF Grant
ARLINGTON, Texas, Feb. 12, 2013 — A University of Texas at Arlington bioengineer has received a National Science Foundation grant to use light and sound to produce an accurate image of a patient’s deep tissue.
Laser Trapping Faux Atoms Creates ‘Super MRI’ Method
BARCELONA, Spain, Feb. 12, 2013 — A new technique, similar to the MRI but with a much higher resolution and sensitivity, uses artificial atoms to scan individual cells. The findings could revolutionize the field of medical imaging.
Microstructures with Living Cells
VIENNA, Feb. 11, 2013 — The behavior of cells strongly depends on their environment, and now a laser system being developed in Austria could create microstructures for embedding living cells in suitable surroundings for research and manipulation.
OSA Recognizes Chu as Advocate of Optics
WASHINGTON, Feb. 11, 2013 — US Secretary of Energy Steven Chu is The Optical Society’s 2013 Advocate of Optics. He was recognized at a reception as part of OSA’s annual two-day Leadership Conference in Washington.
Solar Cells Made Cheap with ‘Spray Paint’
SHEFFIELD, England, Feb. 11, 2013 — Solar cells fabricated using a “spray painting” process could provide a cost-effective alternative to conventional silicon-based cells and make photovoltaic technology available to people in developing countries.
Black Silicon Boosts Solar Cell Efficiency
HELSINKI, Feb. 7, 2013 — Black silicon surfaces on solar cells can elevate their efficiency to new levels, research out of Finland reports.
Prism Awards Honor Innovations in Photonics
SAN FRANCISCO, Feb. 7, 2013 — An early-stage diagnostic tool for skin cancers, a portable device to test for toxins in water and food, and a versatile laser capable of meeting multiple industrial needs were among 10 winners of the 2013 Prism Awards for Photonics Innovation...
Using Fiber Lasers for Particle Acceleration Technologies
SOUTHAMPTON, England, Feb. 7, 2013 — A novel laser system combining the output of thousands of pulsed fiber lasers could be the solution to two main issues affecting current laser particle acceleration technologies: efficiency and repetition rates.
Improved ‘Peacock’ Tech Could Lead to Better Hi-Res Displays
ANN ARBOR, Mich., Feb. 6, 2013 — Peacock feathers have a beautiful iridescence — a sheen that shifts color depending on a viewer’s perspective. But, for engineers trying to reproduce the birds’ unique color mechanism to develop high-resolution, reflective color display screens, the...
Rare Mineral Yields Light-Emitting Nano Triangles
UNIVERSITY PARK, Pa., Feb. 6, 2013 — A rare mineral formed into single sheets has yielded triangular structures with unusual light-emitting properties that could be used in optical technologies such as light detectors or lasers.
Gold Nanoparticles Boost QD Glow
GAITERSBURG, Md., Feb. 5, 2013 — A DNA template that controls the distance between gold nanoparticles and quantum dots can predictably increase or decrease the intensity of a quantum dot’s fluorescence. The breakthrough could lead to the use of quantum dots as a component in better...
Laser Plasma Process Could Advance Optoelectronic Materials
MONTREAL, Feb. 5, 2013 — A novel nanohybrid structure synthesized using a pulsed laser ablation technique could yield a new generation of optoelectronic switches, fast photodetectors and third-generation solar devices.
Light-Activated ‘Living Crystals’ Created
NEW YORK, Feb. 4, 2013 — Birds of a feather flock together, but what causes these flocks to form and move in a particular way has always been a fundamental question in nature. Now, however, a method using “living crystals” that behave in near-lifelike ways when activated by...
Optical Fibers May Transport Quantum Information
INNSBRUCK, Austria, Feb. 4, 2013 — Optical fibers, which transport data around the world, now may be able to carry quantum information, according to new research out of Austria.

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