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Education News
Engineers Perform Computational Logic with Optical and Electrical Signals
TOKYO, Jan. 16, 2019 — In work that could help advance low-power, high-performance computer chips, researchers at the University of Tokyo and RIKEN have employed UV light and electric fields to perform logic operations with a chemical device. The use of electric fields and light allows for lower power operation and creates less heat than logic operations based on electric charge, the researchers said.
Directed Currents Generated at THz Frequencies Are Higher Than Current Clock Rates
BERLIN, Jan. 16, 2019 — Researchers at the Max Born Institute (MBI) generated directed electric currents at terahertz (THz) frequencies from light absorbed in semiconductor crystals. According to the researchers, this is a much higher frequency than the clock rates of...
Three-Photon Microscope Reveals Cortical Layers of Mouse Brain
CAMBRIDGE, Mass., Jan. 15, 2019 — A new three-photon microscope developed at the Picower Institute at the Massachusetts Institute of Technology (MIT) can deliver rapid, short, low-power pulses of light capable of reaching deep targets within the brain without causing functional...
New Additive Manufacturing Method Uses Light to Prevent Resin From Curing Against Vat
ANN ARBOR, Mich., Jan. 14, 2019 — A new approach to 3D printing uses two-color irradiation of resin formulations that contain a photoinitiator and a photoinhibitor to perform vat-printing up to 100 times faster than conventional 3D printing processes, according to a team of...
Second Harmonic Generation Imaging Reveals Existence of Second Bandgap in a 2D Structure
DAEGU, South Korea, Jan. 12, 2019 — Using time-resolved second harmonic generation (TSHG) microscopy and density functional theory (DFT) calculations, researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST) have demonstrated the existence of upper bandgap of atomic...
Gravitational Lensing Magnifies Light of Quasar from Extremely Distant Space and Time
HILO, Hawaii, Jan. 11, 2019 — Observations from Gemini Observatory have identified a key fingerprint of an extremely distant quasar, allowing astronomers to sample light emitted from the beginning of time. Astronomers happened upon this deep glimpse into space and time thanks to...
Imaging Physical Properties of Tumors Could Aid Precision Medicine
LYON, France, Jan. 10, 2019 — A team at the University of Lyon has developed a light-scattering method that maps out the mechanical properties of a tumor’s cellular structure as well as its internal fluids, revealing changes due to chemotherapy treatment. The technique could be...
Holographic Color Prints Combine Phase and Amplitude Control of Light for Better Optical Security
SINGAPORE, Jan. 10, 2019 — A new optical anticounterfeiting device, called “holographic color prints” by its developers at the Singapore University of Technology and Design (SUTD), provides a dual function to increase security and deter counterfeiting. The device creates...
Top SPIE Optics Award Goes to RMIT Physicist
MELBOURNE, Australia, Jan. 9, 2019 — The International Society for Optics and Photonics (SPIE) has announced Min Gu as the 2019 recipient of the Dennis Gabor Award in Diffractive Optics, an award named in honor of the Nobel-winning inventor of holography, Dennis Gabor. Professor Gu is...
RIT Team Is Developing Computer Vision Technology to Improve Aerial Tracking
ROCHESTER, N.Y., Jan. 9, 2019 — Researchers at Rochester Institute of Technology (RIT) are developing a visual tracking system to more accurately locate and follow moving objects under surveillance. Using deep learning, the system could generate more reliable readings of moving...
Light Is Dynamically Controlled in a Programmable Electro-Optic System
CAMBRIDGE, Mass., Jan. 9, 2019 — An integrated photonics platform that can store light and electrically control its frequency in an integrated circuit is the newest development from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). According to the...
Stevens Researcher Receives NSF CAREER Award to Develop Portable Solar Panels
HOBOKEN, N.J., Jan. 8, 2019 — Stephanie Lee, an assistant professor at Stevens Institute of Technology, was awarded a 2019 CAREER Award by the National Science Foundation to fund her research in engineering green, portable, cost-efficient solar panels and other power sources....
Pure Graphene Generates Photocurrent Over Great Distances
RIVERSIDE, Calif., Jan. 8, 2019 — An international research team has discovered a new mechanism for ultra-efficient charge and energy flow in pristine graphene. The team was co-led by professor Nathaniel Gabor from the University of California, Riverside. The researchers fabricated...
Optogenetics Device Offers Stable Way to Treat Bladder Problems
ST. LOUIS, Mo., Jan. 7, 2019 — A tiny, implantable device has been created that can detect overactivity in the bladder and use light from biointegrated LEDs to tamp down the urge to urinate. The device has been demonstrated in laboratory rats and could one day be used to treat...
Nanosatellite System Could Lower Cost of High-Resolution Space Imagery
BEER-SHEVA, Israel, Jan. 7, 2019 — A new nanosatellite imaging system developed by Ben-Gurion University (BGU) researchers is able to capture images that match the resolution of full-frame, lens-based, or concave mirror systems used on today’s telescopes at far less cost. The...
Researchers Use Light Waves to Study Topological Materials
VIENNA, Jan. 5, 2019 — The laws of quantum physics tell us that electrons behave like waves; and in some materials, these electron waves can take on complicated shapes. So-called “topological materials” produce electron states that can be useful, but it is difficult to...
Tunable, Nonlinear Metamaterials Could Facilitate Optical Communication
LOWELL, Mass., Jan. 4, 2019 — Scientists from the University of Massachusetts (UMass) Lowell, King’s College London, Paris Diderot University, and the University of Hartford have found that several materials with poor nonlinear characteristics can be combined together to form a...
Millimeter Wave Imager 'Sees' Through Solid Objects
NEWARK, Del., Jan. 4, 2019 — A camera-like device that generates and detects millimeter waves that “see” through solid objects has been built by a University of Delaware (UD) student engineering team. These high-frequency waves, which are more energetic than microwaves but less...
Optogenetics Device Offers Targeted Control of Light to Neurons
TUCSON, Ariz., Jan. 3, 2019 — University of Arizona researchers have developed a wireless, battery-free method for controlling the intensity and frequency of light that is delivered to neurons in the brain. The miniature device for optogenetics can be fully implanted under the...
Use of Light to Stop Itch Could Provide Relief From Skin Diseases
ROME, Jan. 3, 2019 — Scientists at the European Molecular Biology Laboratory (EMBL) in Rome have used light to stop itch — at best an annoyance and at worst an uncomfortable chronic symptom — in mice. They used NIR light to activate a phototoxic agent that selectively...
Microwaveguides Could Speed Control of Light Flux in PICs
NIZHNY NOVGOROD, Russia, Jan. 2, 2019 — In order to increase the speed with which photonic integrated circuits (PICs) control light flux, researchers are for new materials with high optical nonlinearity. Among the promising materials are microwaveguides based on graphene, a material in...
System Uses QD Array to Tackle Scalability Issues in Quantum Computing
WAKO, Japan, Jan. 2, 2019 — A research team led by the RIKEN Center for Emergent Matter Science (CEMS) has constructed a hybrid device for quantum computing, made from two different types of qubits. According to the team, the hybrid system benefits from the different...
Microgears Made from Germanium Generate Twisted Light
SOUTHAMPTON, England, Dec. 31, 2018 — Miniature gears made from germanium have demonstrated the ability to generate light that has orbital angular momentum. This new light source could be used to boost the amount of data that can be transmitted through optical computing. Light carries...
Machine Learning Identifies Nearly All US Solar Panels from 1 Billion Images
STANFORD, Calif., Dec. 28, 2018 — Stanford University scientists developed a machine learning program that analyzed more than 1 billion high-resolution satellite images and identified nearly every photovoltaic solar power installation in the contiguous 48 U.S. states. They found...
Researchers Achieve Strong Optomechanical Coupling of Light and Sound
LONDON, Dec. 28, 2018 — A strong coupling regime between light and high-frequency acoustic sound waves was demonstrated by a team from Imperial College London, the University of Oxford, and the National Physical Laboratory. The team’s findings could provide a possible...
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