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Materials, Coatings News
Gas Purging Keeps UV Systems Healthy
Oct 6, 2014 — Photochemical deposition of organic films is a significant cause of performance loss in ultraviolet systems; when feasible, it can be reduced or eliminated with inert gas purging. Ultraviolet photons are highly energetic – enough to break bonds and reorganize molecules. They can efficiently reduce silver salts in photographic emulsions and damage DNA by dimerizing thymine bases. UV spectroscopy yields insight into high-energy processes in planetary atmospheres, stars and fusion
Micro Thermal Camera Opens Applications to Consumers
Oct 6, 2014 — Personal thermal imaging just got affordable – but the technology can be used in various industries, too. Thermal imaging is hardly new, but most of us don’t carry thermal imagers in our pockets. Not yet. But it could happen soon, thanks...
Smile and Say, ‘Drone!’
Oct 6, 2014 — Any photographer will tell you that if it were possible to grow an extra set of hands, he would. As simultaneous scientists, artists and packhorses, photographers must know their equipment inside and out, but they must also be prepared to change...
Additive Manufacturing: The Laser Source Is Critical
Oct 3, 2014 — Laser beam power, spot size and focal point must be measured and controlled to produce parts to specification through 3-D printing. Laser-based additive manufacturing (AM) involves the deposition of a precise amount of material in a layer- by-layer...
Bandwidth Demands Drive Fiber Optics Advances
Oct 3, 2014 — Data centers and other applications are pushing changes in long-haul and short-haul fibers. Fiber optics connects the world, carrying calls and data. With bandwidth demand growing, manufacturers are working to up transmission rates, cut costs and...
Keeping Optical Tables Steady
Oct 3, 2014 — Experimental results from a scanning laser Doppler vibrometer elucidate the effects of active vibration damping. Vibration presents a major challenge for precision experiments and manufacturing processes in optoelectronics. Optical tables and...
Thermophotovoltaic System Exhibits Better Absorption
CAMBRIDGE, Mass., Oct. 1, 2014 — A 2-D photonic crystal could prove key in advancing the absorption and use of solar energy.
Ultrathin Films Color Rough, Flexible Surfaces
CAMBRIDGE, Mass., Oct. 2, 2014 — Researchers can now “paint” rough, flexible surfaces through the phenomenon of thin-film interference. A team at Harvard University demonstrated that ultrathin optical coatings can display strong optical interference effects on notebook...
Gold Nanoclusters Enhance Solar Power
LONDON, Ontario, Canada, Sept. 30, 2014 — Gold nanoclusters could improve solar cell performance by more than 10 percent.
Deposition Technique Enables Large-Scale MoS2 Fabrication
SOUTHAMPTON, England, Sept. 24, 2014 — A new technique for fabricating larger amounts of molybdenum disulfide than previously possible could lead to an expanded array of optoelectronic devices. The technique involves depositing nanoscale MoS2 thin films on a variety of substrates via...
Inorganic Semiconductors Guide New Optoelectronic Devices
SEOUL, South Korea, Sept. 22, 2014 — Inorganic Semiconductors Guide New Optoelectronic Devices SEOUL, South Korea, Sept. 22, 2014 — Inorganic compound semiconductors could potentially replace those developed with organic materials. A research team from Seoul National University...
‘Electrode Barrier’ Broken for Organic Solar Cells
AMHERST, Mass., Sept. 19, 2014 — A new organic solar cell has broken the “electrode barrier” known to hamper efforts to enhance efficiency. A team from the University of Massachusetts Amherst developed the cell, which can use virtually any metal as the electrode. Many...
Element Six Joins EU Disk-Laser Development Project
SANTA CLARA, Calif., Sept. 17, 2014 — Element Six has been chosen to help develop a new ultrafast-pulse disk laser for the European Commission’s Seventh Framework Program for Research and Technological Development. The supermaterials company will be part of a multinational team...
Color Display Technology Furthers ‘Squid Skin’ Project
HOUSTON, Sept. 16, 2014 — A new color display brings scientists one step closer to metamaterials that mimic the unique optical properties of squid, octopus and cuttlefish skin. Developed at Rice University’s Laboratory for Nanophotonics (LANP), the new full-color...
Video: University, Spinoff Develop Flexible Graphene Display
CAMBRIDGE, England, Sept. 11, 2014 — A prototype flexible display that uses graphene could lead to wider implementation of the material in flexible electronics.
Photons Act Like Liquid, Crystal in Experiment
PRINCETON, N.J., Sept. 10, 2014 — A system for "crystallizing" photons could help answer fundamental questions about quantum physics.
Diode Lasers Break into New Wavelengths, New Applications
Sep 5, 2014 — New wavelengths, new production technologies and microassembly are all expected to help extend the reach of diode lasers in the future. The field of diode lasers is a dynamic, fast-developing area, enabling new applications to emerge continuously....
Had a few too many? A laser is waiting for you.
Sep 5, 2014 — “Don’t drink and drive.” You’ve heard it before, and you’ll hear it again. But some people still refuse to abide by that rule. It’s likely that you’ve shared the road with dozens of drunken drivers over your...
Lens-Free Microscopes Offer Real-Time Bio Imaging
Sep 5, 2014 — A totally different type of microscope will be much smaller and less complex than traditional microscopes, but more powerful. Two years ago, a customer handed Richard Stahl and the imec team a challenge: one year to develop a microscope that could...
Plasmonic Nanowire Shows Promise as Photonic Circuit
ROCHESTER, N.Y., and ZURICH, Sept. 5, 2014 — A new kind of nanowire efficiently guides both light and electricity.
SWIR Applications and Challenges: A Primer
Sep 5, 2014 — Infrared imaging opens endless possibilities for industrial, scientific and security image-processing applications. But short-wave infrared cameras must overcome the limitations of InGaAs sensor technology to provide high-quality images....
Bees Are No Bumblers
Sep 4, 2014 — When flowers start to bloom, you know it. The smell of honeysuckle, lilacs or gardenias wafts through the air and into our noses as we walk outside, drive down the road or, with any luck, wake up next to an open window. The perfume is intoxicating,...
Carbon Nanotubes Get Better as Solar Cells
EVANSTON, Ill., Sept. 4, 2014 — A new type of carbon nanotube has taken a “big jump” beyond its predecessors in solar cell applications. Single-walled carbon nanotubes (SWCNT), developed by a team from Northwestern University’s McCormick School of Engineering,...
Dual-Band Monitoring Keeps Trains Running in Winter
Sep 4, 2014 — Keeping critical parts of the railroad infrastructure free of snow, sleet, hail and ice – and even detecting unauthorized persons walking the rails – is essential for a safe and uninterrupted transportation service. Dual-band monitoring...
Lasers Help Carmakers Chase Fuel Efficiency
Sep 4, 2014 — Laser-based technologies and techniques including drilling, welding and measurement allow auto manufacturers to keep pace with the demand for lower emissions. For car manufacturers, the number 54.5 looms large. That’s the mile-per-gallon...
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