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Research & Technology News
Metamaterial a One-Way Street for Visible Light
GAITHERSBURG, Md., July 2, 2014 — A structure based on hyperbolic metamaterials allows visible light to pass in only one direction, creating new possibilities for optical circuits and biosensing. Developed at the National Institute of Standards and Technology, the device integrates a silver and silicon dioxide glass nanostructure with sub-wavelength diffractive gratings made of chromium. The 20-layer nanostructure, created using thin-film deposition techniques, is opaque to external light but allows light to
Molecular Movies Enhance Bioimaging, Health Research
CORVALLIS, Ore., and EDMONTON, Alberta, Canada, July 2, 2014 — While they won’t be hitting the red carpet anytime soon, bioimaging and health research are becoming molecular movie stars. A team from Oregon State University and the University of Alberta has created a biosensor imaging system that allows...
Metamaterial Shows Promise as THz Imager
CHESTNUT HILL, Mass., June 30, 2014 — An imaging approach involving metamaterials could make the terahertz regime more accessible. Researchers from Boston College, the University of New Mexico and Duke University engineered a low-power multiplex tunable spatial light modulator (SLM)...
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...
Harsh Environments No Match for New Fiber Sensor
PITTSBURGH, June 27, 2014 — A team from the University of Pittsburgh has developed an optical high-temperature sensor for gas flow measurements. The researchers said they were able to operate the sensors at up to 850 °C, about 200 °C hotter than has been achieved in...
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...
Femtosecond Lasers Used to Administer Drugs
OKINAWA, Japan, and DUNEDIN, New Zealand, June 26, 2014 — A system using femtosecond lasers in conjunction with nanotechnology enables targeted and controlled drug distribution, presenting treatment possibilities for Parkinson’s disease and other ailments. Existing drug delivery procedures cannot...
Nano-engineered Quantum Dots Push Solar Cell Efficiency
LOS ALAMOS, N.M., June 26, 2014 — A new approach to building quantum dots has shown considerable gains in generating photocurrent. This could potentially create a new generation of solar cells. In a new study, a team from the Center for Advanced Solar Photophysics (CASP) at Los...
Spectroscopy Combo Ups Diagnostic Accuracy
SOFIA, Bulgaria, June 26, 2014 — A new spectroscopy technique can identify melanoma with as much as 93 percent accuracy. Discovered by a team from the Institute of Electronics at the Bulgarian Academy of Sciences and University Hospital, the new method uses light-induced...
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...
Polariton Waveguide Could Help Photonic Circuits
TOYOHASHI, Japan, 25 June 2014 — A low-loss thin-film waveguide for surface plasmon polaritons (SPPs) could aid the development of nanoscale photonic integrated circuits on silicon. Recent research has focused on using SPPs as signal carriers in nanoscale integrated circuits to...
Funding Extended for Bio-inspired Solar Energy Research
ST. LOUIS, June 24, 2014 — The Photosynthetic Antenna Research Center (PARC) at Washington University has won a four-year, $14.4 million grant from the U.S. Department of Energy to continue research on natural and bio-inspired systems for harvesting the sun’s energy....
Red Phosphor Heightens White LEDs
MUNICH and AACHEN, Germany, June 24, 2014 — A new material could help LEDs produce more pleasing white light. A team from Ludwig Maximilian University of Munich (LMU), in collaboration with Philips Technologie in Amsterdam, has developed a new red phosphor material based on the nitride...
Pyramid Structure Makes Better PHOLEDs
ANN ARBOR, Mich., June 23, 2014 — Phosphorescent organic light-emitting diodes (PHOLED) are an efficient alternative to traditional incandescent lighting. However, PHOLEDs’ efficiency is typically short-lived when they’re needed to shine brightly. Researchers at the...
Two-Mode Imaging System More Efficient for Tumor ID
TUCSON, Ariz., and ST. LOUIS, June 23, 2014 — Removing cancerous tumors can be a delicate process, requiring surgeons to pinpoint their exact location. A new technology has demonstrated that ability in a more effective way than with conventional methods. A dual-mode imager developed by a team...
Brain-Mapping Device Aids PTSD Study
ARLINGTON, Texas, June 20, 2014 — Post-traumatic stress disorder can greatly hinder sufferers’ memory and learning abilities. Further study of the disorder and its impacts using near-infrared spectroscopy could bring new and potentially more effective treatments. A portable...
Career Award Funds CO2 Photocatalysis Study
HOUSTON, Texas, June 20, 2014 — Rice University professor Isabell Thomann has received a $400,000 Career Award from the National Science Foundation to study photocatalytic reactions that could reduce carbon dioxide emitted by power plants. Her five-year research project involves...
Light-Manipulating Nanobarrel Traps Molecules
CAMBRIDGE, England, June 20, 2014 — Lower cost, more reliable diagnostic testing could be a light at the end of the nanophotonic tunnel … or barrel, in this case. A team from the University of Cambridge, in collaboration with the school’s Melville Laboratory for Polymer...
More Efficient Solar Cells with a One-Step Process
HOUSTON, June 20, 2014 — A new one-step process for producing efficient materials could mean big things for solar cells. Developed by a team at Rice University, the new process produces black silicon. This material reflects almost no light. Its textured surface of nanoscale...
Imax, Necsel Enter Laser Tech Partnership
NEW YORK, June 19, 2014 — In a recently signed agreement, Necsel will become the exclusive worldwide provider of specified lasers for Imax Corp.’s new projection systems. Imax’s laser projection technology allows an array of digital content to be exhibited. The...
Nanofiber Fabrication Boosts Quantum Computing
COLLEGE PARK, Md., June 19, 2014 — A new approach to fabricating optical nanofibers could enable the next generation of quantum computing. These ultra-high-transmission fibers, developed by researchers at the University of Maryland’s Joint Quantum Institute, could act as...
New Spectroscopy Technique Probes Photochemical Reactions
BERKELEY, Calif., June 18, 2014 — Photochemical reactions have become key players in high technology, namely in the development of nanomaterials and solar energy systems. Better understanding of these light-triggered processes could lead to more efficient use. A team from Lawrence...
Sub-RF Imaging Advanced by Lasers
GAITHERSBURG, Md., and ANN ARBOR, Mich., June 18, 2014 — Laser-enhanced radio frequency mapping could lead to better assessment of the properties of metasurfaces. Traditional field mapping requires the use of millimeter-scale antennas and dipoles, similar in size to the radio frequencies they measure....
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