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Materials, Coatings News
Hyperbolic Metamaterials Advance Practical Applications
WEST LAFAYETTE, Ind., May 14, 2014 — Optical imaging of objects as small as DNA strands could be possible using hyperbolic metamaterials. The ultrathin crystalline films act like metals when light passes through in one direction and like dielectrics when light passes in a perpendicular direction. Researchers exploring the metamaterials at Purdue University say practical applications could include quantum computing and high-performance solar cells. “This work is a very important step in terms of fundamental
New Graphene Film Brings Fast, Low-Cost Communications
MELBOURNE, Australia, May 12, 2014 — A new type of graphene is showing potential for ultrafast telecommunications. A team from Swinburne University of Technology has developed the micrometer-thin continuous graphene oxide film, which demonstrates optical nonlinearity suitable for...
Tin Replaces Lead in Promising Solar Cell
EVANSTON, Ill., May 12, 2014 — A new solar cell promises enhanced efficiency and a smaller environmental footprint. The new cell, developed by a team from Northwestern University, uses a perovskite structure composed of tin instead of the traditional lead as the light-absorbing...
Nanoscope Can Probe Chemistry on the Molecular Scale
BERKELEY, Calif., and BOULDER, Colo., May 9, 2014 — The in-depth study of complex molecular systems, from batteries and electronic materials to living cells and even stardust, is now possible with a new imaging technique. Broadband IR synchrotron light has enabled researchers at Lawrence Berkeley...
Diamond Enhances Laser Beams
SYDNEY, May 7, 2014 — Diamonds just might be a laser beam’s best friend. A team from Macquarie University’s Photonics Research Center has discovered how to increase the quality of high-power laser beams by exploiting the optics of an 8-mm diamond. A 50 W...
Researchers Probe Graphene Alternatives with SHG
BERKELEY, Calif., May 7, 2014 — Scientists have a new way to study the optical and electric properties of 2-D metals that could compete with graphene in semiconductor and other applications. Using ultrafast IR pulses, researchers with the Lawrence Berkeley National Laboratory...
Brookhaven Scientist Honored For Work on Solar Nanostructures
UPTON, N.Y., May 6, 2014 — Work on self-assembling nanostructures for solar energy collection has earned Brookhaven National Laboratory physicist Charles T. Black an “Inventor of the Year” award. The awards are presented by Battelle, which, together with Stony...
A Vision of the Future
May 5, 2014 — At The Vision Show last month in Boston, keynote speaker Dennis Treece spoke about the evolving “security vision” market, in which machine vision for packaging integrity is morphing to perform security duties. The retired Army colonel...
Celestial light switch reveals lunar ranging data
May 5, 2014 — When certain members of the universe play a linear game of hide-and-seek, humans pay attention: Many don special solar glasses; others stay up late to catch sight of a burnt-orange moon. Solar and lunar eclipses are sights to behold, appearing just...
Engineering Makes Powerful Lasers Safer
May 5, 2014 — Containment, software, training and other precautions allow embedded or enclosed lasers to move into new applications. Hiding your light under a bushel isn’t always a bad thing, contrary to the advice in the old proverb. A case in point can be...
LEDs, Other Optoelectronic Components Merging for Emerging Applications
May 5, 2014 — Advances in on-chip integration, materials and fabrication methods enable smaller, faster components for next-generation applications. The market for optoelectronic (OE) components – parts that make up other parts and connect between...
Light Sources, Filters Enable 3-D Sensing Advances
May 5, 2014 — Improving the manufacturability, reliability and size of hardware components for 3-D sensing systems opens up new applications for the technology. Today, a growing number of smart TVs and operating systems respond to gestured commands by changing...
Materials Hold Secret to Better LED Performance, Efficiency, Value
May 5, 2014 — There’s little doubt that LEDs save energy, but the high initial cost of LED lamps is preventing mass adoption by lighting consumers. New materials are crucial to driving down the price tag and driving up market acceptance. The price of LEDs...
QDs Up Display Color, Brightness with Less Power
May 5, 2014 — Want a brighter, more colorful display that uses less power? Quantum dots may be the answer. After 25 years of research and development, quantum dots – man-made semiconducting crystals so tiny they are invisible to the naked eye – are...
Plasmonic Probes Help Quantify Breast Cancer Gene Segments
WEST LAFAYETTE, Ind., April 25, 2014 — Hyperspectral imaging using plasmonic probes can ferret out a specific genetic telltale for breast cancer within individual cells, according to recent research from Purdue University. That genetic telltale is BRCA1, a tumor suppressor gene....
Simple Lens-Making Method Turns Phones into Dermascopes
CANBERRA, Austalia, April 25, 2014 — High-resolution silicon polymer lenses can be baked in conventional ovens and attached to smartphones to make an inexpensive microscope.
Ballato Recognized for Work on Optical Materials
CHARLESTON, S.C., April 23, 2014 — John Ballato is one of three people to receive the 2014 Governor's Award for Excellence in Scientific Research. This recognizes his work in optical materials science.
Dual-Catalyst Technique Allows Better Control of Molecules
MADISON, Wis., April 24, 2014 — Chemical reactions usually happen on their own terms. But now, researchers from the University of Wisconsin-Madison have discovered a way to create molecules with controlled chirality using sunlight as one of two catalysts.
Stress Activates Light-Emitting Nanowires
ZURICH, April 23, 2014 — Stretching gallium arsenide nanowires makes them better light emitters, while compression makes them better light absorbers.
Electricity Changes Polymer’s Optical Properties
MILAN, WARSAW, Poland and DRESDEN, Germany, April 22, 2014 — A newly developed polymer is said to be the first of its kind to combine optical and electrical properties. This could mean new manufacturing possibilities for glass, polarization filters and sensors capable of detecting single molecules of a given...
Carbon Spaser Could Zap Cancer Cells
MELBOURNE, Australia, April 21, 2014 — A carbon-based nanolaser could be used to zap cancer cells, or enable electronics small and flexible enough to be printed on clothing.
Mid-IR Lens Incorporates Waste Sulfur
TUCSON, Ariz., April 21, 2014 — Thin, inexpensive plastic lenses for IR imaging devices can be manufactured from waste sulfur generated by refining fossil fuels.
Panels Redirect Sunlight into Shadowy Urban Areas
CAIRO, April 18, 2014 — Corrugated, translucent panels mounted on rooftops could be used to bend sunlight into places it normally doesn't reach.
Laser Process Allows Precision Design of Nanospheres
HANNOVER, Germany, April 17, 2014 — A laser-based technique for creating light-scattering silicon nanospheres could have applications in medicine and sensor technology.
Lasers Produce Bio-Inspired Surface Functions
Apr 17, 2014 — Lasers can interact with matter in a variety of ways. Depending on the wavelength, the energy of the laser beam and a whole set of other parameters, such as pulse duration or repetition rate, laser photons have countless ways of mingling with the...
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April 2024
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