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Categories: Offbeat: Computers and Math, Physics: Optics
Published Laser-driving a 2D material
(via sciencedaily.com) Original source Engineers pair vibrating particles, called phonons, with particles of light, called photons, to enhance the nonlinear optical properties of hexagonal boron nitride.
Published Pancake stack of films on a balloon most accurate gamma-ray telescope
(via sciencedaily.com) Original source A pancake stack of radioactivity-sensitive films carried through the sky by a balloon was able to take the world's most accurate picture of a neutron star's gamma ray beam. To achieve this, researchers combined the oldest method of capturing radioactive radiation with the newest data capturing techniques and a clever time-recording device.
Published Blue PHOLEDs: Final color of efficient OLEDs finally viable in lighting
(via sciencedaily.com) Original source Lights could soon use the full color suite of perfectly efficient organic light-emitting diodes, or OLEDs, that last tens of thousands of hours. The new phosphorescent OLEDs, commonly referred to as PHOLEDs, can maintain 90% of the blue light intensity for 10-14 times longer than other designs that emit similar deep blue colors. That kind of lifespan could finally make blue PHOLEDs hardy enough to be commercially viable in lights that meet the Department of Energy's 50,000-hour lifetime target. Without a stable blue PHOLED, OLED lights need to use less-efficient technology to create white light.
Published 360-degree head-up display view could warn drivers of road obstacles in real time
(via sciencedaily.com) Original source Researchers have developed an augmented reality head-up display that could improve road safety by displaying potential hazards as high-resolution three-dimensional holograms directly in a driver's field of vision in real time.
Published Aerogel can become the key to future terahertz technologies
(via sciencedaily.com) Original source High-frequency terahertz waves have great potential for a number of applications including next-generation medical imaging and communication. Researchers have shown that the transmission of terahertz light through an aerogel made of cellulose and a conducting polymer can be tuned. This is an important step to unlock more applications for terahertz waves.
Published Could an electric nudge to the head help your doctor operate a surgical robot?
(via sciencedaily.com) Original source People who received gentle electric currents on the back of their heads learned to maneuver a robotic surgery tool in virtual reality and then in a real setting much more easily than people who didn't receive those nudges, a new study shows.
Published Snowflakes swirling in turbulent air as they fall through a laser light sheet
(via sciencedaily.com) Original source A winter wonderland calls to mind piles of fluffy, glistening snow. But to reach the ground, snowflakes are swept into the turbulent atmosphere, swirling through the air instead of plummeting directly to the ground. Researchers found that regardless of turbulence or snowflake type, acceleration follows a universal statistical pattern that can be described as an exponential distribution.
Published Gentle x-ray imaging of small living specimens
(via sciencedaily.com) Original source Researchers all over Germany have developed a new system for X-ray imaging, which is suited for both living specimens and sensitive materials. The system records images of micrometer resolution at a minimum radiation dose. In a pilot study, the researchers tested their method on living parasitic wasps and observed them for more than 30 minutes.
Published First observation of how water molecules move near a metal electrode
(via sciencedaily.com) Original source A collaborative team of experimental and computational physical chemists has made an important discovery in the field of electrochemistry, shedding light on the movement of water molecules near metal electrodes. This research holds profound implications for the advancement of next-generation batteries utilizing aqueous electrolytes.
Published AI's memory-forming mechanism found to be strikingly similar to that of the brain
(via sciencedaily.com) Original source An interdisciplinary team consisting of researchers has revealed a striking similarity between the memory processing of artificial intelligence (AI) models and the hippocampus of the human brain. This new finding provides a novel perspective on memory consolidation, which is a process that transforms short-term memories into long-term ones, in AI systems.
Published Artificial intelligence can predict events in people's lives
(via sciencedaily.com) Original source Artificial intelligence can analyze registry data on people's residence, education, income, health and working conditions and, with high accuracy, predict life events.
Published Ultrafast lasers map electrons 'going ballistic' in graphene, with implications for next-gen electronic devices
(via sciencedaily.com) Original source Research reveals the ballistic movement of electrons in graphene in real time. The observations could lead to breakthroughs in governing electrons in semiconductors, fundamental components in most information and energy technology.
Published A promising pairing: Scientists demonstrate new combination of materials for quantum science
(via sciencedaily.com) Original source For the first time, scientists publish results on a new chip composed of diamond and lithium niobate. The results demonstrate the combination as a promising candidate for quantum devices.
Published AI study reveals individuality of tongue's surface
(via sciencedaily.com) Original source Artificial Intelligence (AI) and 3D images of the human tongue have revealed that the surface of our tongues are unique to each of us, new findings suggest. The results offer an unprecedented insight into the biological make-up of our tongue's surface and how our sense of taste and touch differ from person to person.
Published This next generation blue light could potentially promote or hinder sleep on command
(via sciencedaily.com) Original source Blue light from LED lamps and consumer electronics can mess with your sleep because it disrupts production of the natural sleep hormone melatonin. Tinted glasses or displays in night mode can mask, but don't remove, a portion of the disruptive wavelengths. But now, researchers report that they have designed more 'human-centric' LEDs that could potentially enhance drowsiness or alertness on command.
Published Cognitive strategies for augmenting the body with a wearable, robotic arm
(via sciencedaily.com) Original source Scientists show that breathing may be used to control a wearable extra robotic arm in healthy individuals, without hindering control of other parts of the body.
Published Researchers create stable hybrid laser by 3D printing micro-optics onto fibers
(via sciencedaily.com) Original source For the first time, researchers have shown that 3D-printed polymer-based micro-optics can withstand the heat and power levels that occur inside a laser. The advance enables inexpensive compact and stable laser sources that would be useful in a variety of applications, including the lidar systems used for autonomous vehicles.
Published Can AI be too good to use?
(via sciencedaily.com) Original source Much of the discussion around implementing artificial intelligence systems focuses on whether an AI application is 'trustworthy': Does it produce useful, reliable results, free of bias, while ensuring data privacy? But a new article poses a different question: What if an AI is just too good?
Published Artificial intelligence systems excel at imitation, but not innovation
(via sciencedaily.com) Original source Artificial intelligence (AI) systems are often depicted as sentient agents poised to overshadow the human mind. But AI lacks the crucial human ability of innovation, researchers have found.
Published In a new light -- new approach overcomes long-standing limitations in optics
(via sciencedaily.com) Original source When you look up at the sky and see clouds of wondrous shapes, or struggle to peer through dense, hazy fog, you're seeing the results of 'Mie scattering', which is what happens with light interacts with particles of a certain size. There is a growing body of research that aims to manipulate this phenomenon and make possible an array of exciting technologies. Researchers have now developed a new means of manipulating Mie scattering from nanostructures.