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Light Sources News
Ultrashort-Pulse Lasers Take the Heat Out of Materials Processing
Jul 18, 2014 — Ultrashort-pulse (USP) lasers have, since the late 1990s, been an exciting technology looking for opportunities to gain mass market application in industrial materials processing. In recent years, a wide range of new products offering innovative architectures and higher pulse energy combined with high pulsing frequencies are finding many uses in regular manufacturing, where they make components with unprecedented quality, accuracy and speed without visible signs of thermal interaction during
Photonic Router Aids Quantum Computing
REHOVOT, Israel, July 15, 2014 — A router capable of guiding single photons could overcome challenges associated with building quantum computers. A team from the Weizmann Institute of Science developed the device, which is based on a single atom connected to a fiber-coupled,...
Glass Lends Flexibility to Organic PVs
POTSDAM, Germany, July 10, 2014 — A new carrier substrate made from flexible, 100-µm-thin layers of glass better protects organic solar modules and could simplify their manufacture. A team from the Fraunhofer Institute for Applied Polymer Research is developing methods for...
New Optical Component Enhances Augmented Reality Devices
LONDON, July 10, 2014 — A novel optical component could transform wearable augmented-reality and display devices. TruLife Optics Ltd. developed the component in conjunction with the National Physical Laboratory in London. The 2-mm-thick optic incorporates two holograms and...
New Optogenetic Tool Controls Neuronal Signaling
DAEJEON, South Korea, July 8, 2014 — New optogenetics technology allows scientists to remotely control specific neurons with blue light. A team from the Institute for Basic Research has developed the genetically encoded, photoactive tropomyosin-related kinase (Trk) technology, called...
Light-Activated Receptors Offer Cell Control
KLOSTERNEUBURG, Austria, and VIENNA, July 7, 2014 — Controlling the behavior of cells — including cancers — with light is now possible with engineered cell receptors. To accomplish this, researchers from the Institute of Science and Technology Austria and the Medical University of Vienna...
Novel Photodetector Made from Zinc Nanostructure
BEIJING, July 7, 2014 — A nanoporous structure is laying the groundwork for a new type of photodetector. A team from the State Key Laboratory of Petroleum Resources and Prospecting at the China University of Petroleum has developed the new photodetector, made for...
QD Laser Wins IEEE Photonics Society Award
KANAGAWA, Japan, July 7, 2014 — Quantum-dot laser developers Kenichi Nishi, Mitsuru Sugawara and Keizo Takemasa of QD Laser Inc. are the winners of this year’s Aron Kressel Award from the Institute of Electrical and Electronics Engineers Photonics Society. The team worked on...
Compressive Imaging Unscrambles Light
CASTELLON, Spain, and VALENCIA, Spain, July 3, 2014 — A new compressive optical sensing technique conquers light scattering limitations of biological tissue, allowing a deeper look inside the body. Developed by a team from Jaume I University (UJI) and the University of Valencia, a single-pixel optical...
Hollow Core Protects Optical Fibers from UV Light
ERLANGEN, Germany, and BRAUNSCHWEIG, Germany, July 3, 2014 — A new type of optical fiber can guide UV laser light without sustaining damage, as often happens with conventional fibers. Developed by a team from the Max Planck Institute and the Centre for Quantum Engineering and Space-Time Research (QUEST) at...
Standards Sought for Hyperspectral Imaging
GAITHERSBURG, Md., July 3, 2014 — A team from the National Institute of Standards and Technology has begun gathering data they expect will lead to universal calibration standards for hyperspectral imaging, saying the lack of such standards has impeded this noninvasive imaging...
3 Questions Interview
Jul 1, 2014 — Optics education advocate Judy Donnelly might have retired recently, but she won’t let that slow down her efforts to advance science and learning. Donnelly won the 2012 Esther Hoffman Beller Medal from OSA, which recognizes outstanding...
A Better Small View Can Yield a Big Impact
Jul 1, 2014 — Microscopy is a key tool in materials science, especially in the development of new and better materials, and microscopy methods keep advancing. As things get smaller, faster and cheaper, the stakes get higher – especially for the materials...
Hands-on program ‘makes waves’ with kids
Jul 1, 2014 — There’s no need to make science exciting for kids – it’s already exciting. Educators just need to show them. That was the goal of the yearlong Making Waves: Optics and Acoustics program, which brought together students from three...
Light Refreshments Will Be Served
Jul 1, 2014 — In less than six months, people everywhere will anxiously await the ball drop or other symbolic event signaling the start of 2015. It seems fitting that the International Year of Light will be ushered in by fireworks and laser light shows from Paris...
Moving Mother Nature Indoors
Jul 1, 2014 — Artificial light is not pretty. Spending time under the harsh fluorescence of office, hospital or store lighting can be straining on the eyes and draining on morale. Leaning back in your office chair or hospital bed, or in the checkout line,...
Novel Laser-Power Sensor Improves Process Control
Jul 1, 2014 — A new type of laser-power detector delivers fast speed and high laser-damage resistance, enabling real-time process control in embedded systems. Lasers process a wide range of materials in an extraordinarily diverse array of applications that often...
Optical Filters Open Up New Uses for MWIR, LWIR Systems
Jul 1, 2014 — The future for photonics imaging is bright in a previously dark wavelength regime: The ability to image ‘invisible’ features such as thermal profiles, gases and other environmental constituents in a commercially viable manner has begun...
Slow Light: Moving Out of the Lab
Jul 1, 2014 — When put into practical use, slow-light-enhanced technologies will improve the performance of photonic networks and optical sensors. Photonic crystals will play a key role in the transition, as they hold promise for integration into nanophotonic...
Gigaphoton Develops Helium-Free Laser Purge Process
OYAMA, Japan, June 30, 2014 — Gigaphoton recently announced two advancements for lithography lasers: a helium-free purge process and a high-power laser prototype. The helium-free purge process for argon-fluorine (ArF) immersion lasers uses nitrogen, an abundant gas the company...
Noninvasive Brain Control Possible with New Light-Sensitive Protein
CAMBRIDGE, Mass., June 30, 2014 — A new molecule, along with optogenetics, has put brain control in the hands of scientists. Researchers from MIT developed the protein, which is sensitive to red light and enables neurons to be manipulated noninvasively, as the controlling light...
Magnetic Fields Control Liquid Crystals’ Optical Properties
RIVERSIDE, Calif., June 27, 2014 — A new technique that forms and controls magnetically responsive liquid crystals could be applied to signs, writing tablets and billboards. Conventional liquid crystals, often used in electronic displays, are composed of tiny rod-like molecules....
Optogenetics Allows Control of Spinal Circuits
CAMBRIDGE, Mass., June 27, 2014 — Neuroscientists have long studied spinal circuits in the brain in efforts to better treat spinal cord injuries. Now, optogenetics could be a solution. Researchers at MIT’s McGovern Institute for Brain Research have discovered that this...
Tofu Chemical Could Prompt New Wave of Solar Cells
LIVERPOOL, England, June 27, 2014 — Solar cells could learn a thing or two from tofu and bath salts. Researchers from the Stephenson Institute for Renewable Energy at the University of Liverpool have found that magnesium chloride (MgCl2) — found in tofu, bath salts and de-icing...
Photocatalytic Approach Produces New Drug Candidates
PRINCETON, N.J., June 25, 2014 — Light and nickel share a unique bond as chemical catalysts for potential new drugs. Princeton University chemists studying photoredox catalysis and nickel catalysis have discovered that bringing the two processes together enables reactions that...
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