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Education News
Camera Offers Single-Shot, Real-Time, Ultrafast Imaging of Transparent Objects
PASADENA, Calif., Jan. 23, 2020 — A camera developed at the California Institute of Technology (Caltech) uses picosecond imaging technology to take photographs and videos of transparent objects at speeds of up to 1 trillion frames per second. Called phase-sensitive compressed ultrafast photography (pCUP), this camera technology can also take video of shockwaves and other ephemera. The new camera combines the contrast of dark field microscopy with the speed and the sequence depth of compressed ultrafast photography (CUP),
Diabolical Points Could Provide Control of Quantum Emitters
BEIJING, Jan. 22, 2020 — Researchers from the Chinese Academy of Sciences and the University of Glasglow have discovered a way to potentially provide control over the emission of individual photons for quantum computing. Active emitters in photonic structures are essential...
Blue Light Can Improve Sleep, Help Brain Recover from Injury
TUCSON, Ariz., Jan. 21, 2020 — According to a University of Arizona (UArizona) study, exposure to blue light in the morning could re-entrain the circadian rhythm and improve sleep problems, leading to faster recovery from brain injury. Research has shown that the brain repairs...
Slow-Light Waveguide Provides Beam-Steering Capabilities for Lidar
YOKOHAMA, Japan, Jan. 21, 2020 — In the field of lidar, where speed is often valued above other variables, a team from Yokohama National University is using “slow light” to develop compact, easy-to-use, 3D sensors with nonmechanical beam-steering capabilities....
Heuristic Approach Uses Photonics to Solve Complex Problems Fast
CAMBRIDGE, Mass., Jan. 20, 2020 — Researchers at MIT and the Institute of Soldier Nanotechnologies have opened the path to solving NP-complete problems with integrated photonics, by developing a heuristic algorithm dedicated to solving the NP-complete Ising problem using photonics...
Self-Heating in OLEDs Can Cause Decrease in Luminance
DRESDEN, Germany, Jan. 16, 2020 — When LEDs and transistors are connected in parallel, even slight differences in resistance can lead to imbalanced current flow. If the devices heat up, this can lead to even greater imbalances. This is especially true for OLEDs. A large-area OLED...
Tuned Resonators Allow Control of Electromagnetically Induced Transparency
ST. LOUIS, Jan. 16, 2020 — Researchers at Washington University in St. Louis have devised an optical resonator system that can be used to turn transparency on and off. The ability to manipulate electromagnetically induced transparency (EIT) without the introduction of an...
Scientists Analyze Final Images from Cassini
LANCASTER, England, Jan. 15, 2020 — Toward the completion of its 13-year mission, which ended in September 2017, the Cassini spacecraft performed a set of orbits that brought it closer to Saturn than ever before. By passing over the planet’s polar regions at a low altitude,...
New Rules Reveal How an Object’s Scale Affects Its Interaction with Light
PRINCETON, N.J., Jan. 14, 2020 — Princeton researchers have uncovered rules pertaining to how objects absorb and emit light. Their discovery addresses how the scale of an object affects the way it interacts with light. The new rules will tell scientists how much infrared (IR) light...
Deep Learning Speeds 3D Microscopic Neuroimaging
AUSTIN, Texas, and SAN DIEGO, Jan. 14, 2020 — Using deep learning techniques, researchers from the Salk Institute have developed a new microscopy approach that could make microscopic techniques used for brain imaging 16 times faster. The researchers trained their deep learning system using data...
Quantum Loop Provides Testbed for Unhackable Communications
CHICAGO, Jan. 13, 2020 — Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the University of Chicago (UChicago) have launched a quantum loop, consisting of two connected, 26-mile fiber optic cables that run between Argonne and the...
Using Microwave Metamaterials in Machine Learning Speeds Object Recognition
DURHAM, N.C., Jan. 13, 2020 — A new approach to object identification, developed by researchers at Duke University and the Institut de Physique de Nice (INPHYNI), enables joint learning of optimal measurement strategies and a matching processing algorithm, and uses inferred...
Microresonator Measures and Images Nanoparticles with High Degree of Sensitivity
ONNA, Japan, Jan. 13, 2020 — Scientists at the Okinawa Institute of Science and Technology (OIST) Graduate University have developed a light-based device that can act as a biosensor, detecting biological substances in materials, such as harmful pathogens in food. The scientists...
Active Thermal Detection Could Broaden Use of Superresolution Techniques
DAEJEON, South Korea, Jan. 10, 2020 — Be it light, sound, or an electromagnetic wave, a probe beam operates the same way — the beam gets sent ahead and a wave of the same nature is reflected back. The absorbed energy is converted to heat, for which there has been no perceived use...
NIST Proposes New Definition for Optical Watt
GAITHERSBURG, Md., Jan. 9, 2020 — Researchers at the National Institute of Standards and Technology (NIST) seek to develop a more precise definition for the standard unit of light power, the optical watt. Instead of the current definition, which is based on comparisons to electrical...
2-Photon Microscopy Shows Learning Involves Various Areas of Brain
BALTIMORE, Jan. 8, 2020 — To explore how learning and memory-building take place in the brain, scientists at Johns Hopkins University School of Medicine used a laser-assisted imaging tool to monitor and measure levels of AMPAR molecules, which help send messages between...
Laser Pulse Creates Nonlinear Effects in Amorphous Dielectric Material
ATLANTA, Jan. 8, 2020 — A new, all-optical technique for creating second-order nonlinear effects in materials that normally do not support them could lead to new options for creating these effects for optical computers, high-speed data processors, and bioimaging. A...
Quantum Dots Deliver Vaccines, Encode Vaccination History in the Skin
CAMBRIDGE, Mass., Jan. 7, 2020 — Using fluorescent quantum dots, an MIT research team has created a way to administer vaccinations and record a patient’s vaccination history in the skin. The researchers developed a microneedle platform that can selectively deliver...
New Nano-Barrier for Composite Material Could Strengthen Spacecraft Payloads
GUILDFORD, England, Jan. 6, 2020 — Researchers at the University of Surrey have developed a robust nano-barrier for carbon fiber reinforced polymers (CFRPs) that could be used to strengthen and stabilize high-precision instrument structures for space missions. CFRPs are used in...
Ghost Imaging Speeds Up Superresolution Microscopy
SHANGHAI, Jan. 6, 2020 — Scientists from the Chinese Academy of Sciences have developed a new imaging technique that produces nm-scale resolution using significantly fewer images than traditional nanoscopy techniques. The scientists used ghost imaging to enhance the imaging...
Multiple Properties of Quantum Materials Probed Simultaneously at Nano Resolution
NEW YORK and SAN DIEGO, Jan. 3, 2020 — Researchers at Columbia University and the University of California, San Diego, have used a combination of measurement techniques to simultaneously examine the electrical, magnetic, and optical properties of quantum materials. The work was inspired...
Quantum Sensors in Diamond Anvils Measure Materials Under Pressure
BERKELEY, Calif., Jan. 3, 2020 — To develop new, high-performance optical and electronic materials, scientists need to measure how material properties such as magnetism and strength change under extreme conditions. Diamond anvil cells have made it possible for scientists to safely...
Neural Networks Train Lasers to Spot Space Junk
BEIJING, Dec. 31, 2019 — A set of algorithms for laser ranging telescopes, developed by scientists from the Chinese Academy of Surveying and Mapping and the Liaoning Technical University, is improving the success rate of space debris detection in Earth’s orbit by...
Chalcogenide Perovskites Show Promise for Optoelectronics Applications
BUFFALO, N.Y., Dec. 30, 2019 — A new barium zirconium sulfide (BaZrS3) thin film, developed by a team at the University at Buffalo, combines strong light absorption with good charge transport — two qualities that could be useful for optoelectronics applications such as...
In Vivo Imaging with FLIM Shows Effect of Experience on Neuronal Activity
JUPITER, Fla., Dec. 30, 2019 — Every day, the neuronal connections within our brains change depending on what we learn and experience in our daily lives. Specialized proteins, called activity-dependent transcription factors, activate genes within the cells of the brain to help it...
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