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Categories: Engineering: Nanotechnology, Physics: Optics
Published Novel insights into fluorescent 'dark states' illuminate ways forward for improved imaging
(via sciencedaily.com) Original source Scientists address decades-long problem in the field of single-molecule fluorescence resonance energy transfer, paving the way for more accurate experiments.
Published New fabric makes urban heat islands more bearable
(via sciencedaily.com) Original source Researchers detail a new wearable fabric that can help urban residents survive the worst impacts of massive heat caused by global climate change, with applications in clothing, building and car design, and food storage. By addressing both direct solar heating and the thermal radiation emitting from pavement and buildings in urban heat islands, the material kept 2.3 degrees Celsius (4.1 degrees Fahrenheit) cooler than the broadband emitter fabric used for outdoor endurance sports and 8.9 degrees Celsius (16 degrees Fahrenheit) cooler than the commercialized silk commonly used for shirts, dresses and other summer clothing.
Published Pair plasmas found in deep space can now be generated in the lab
(via sciencedaily.com) Original source Researchers have experimentally generated high-density relativistic electron-positron pair-plasma beams by producing two to three orders of magnitude more pairs than previously reported.
Published Nanosized blocks spontaneously assemble in water to create tiny floating checkerboards
(via sciencedaily.com) Original source Researchers have engineered nanosized cubes that spontaneously form a two-dimensional checkerboard pattern when dropped on the surface of water. The work presents a simple approach to create complex nanostructures through a technique called self-assembly.
Published Swimming microrobots deliver cancer-fighting drugs to metastatic lung tumors in mice
(via sciencedaily.com) Original source Engineers have developed microscopic robots, known as microrobots, capable of swimming through the lungs to deliver cancer-fighting medication directly to metastatic tumors. This approach has shown promise in mice, where it inhibited the growth and spread of tumors that had metastasized to the lungs, thereby boosting survival rates compared to control treatments.
Published Researchers leverage inkjet printing to make a portable multispectral 3D camera
(via sciencedaily.com) Original source Researchers have used inkjet printing to create a compact multispectral version of a light field camera. The camera, which fits in the palm of the hand, could be useful for many applications including autonomous driving, classification of recycled materials and remote sensing.
Published Scientists adapt astronomy method to unblur microscopy images
(via sciencedaily.com) Original source Researchers have adapted a class of techniques employed in astronomy to unblur images of far-away galaxies for use in the life sciences, providing biologists with a faster and cheaper way to get clearer and sharper microscopy images.
Published Quantum dots and metasurfaces: Deep connections in the nano world
(via sciencedaily.com) Original source A team has developed printable, highly efficient light-emitting metasurfaces.
Published Uncovering the nature of emergent magnetic monopoles
(via sciencedaily.com) Original source To understand the unique physical phenomena associated with the properties of magnetic hedgehogs and antihedgehogs, which behave as virtual magnetic monopoles and antimonopoles respectively, it is essential to study their intrinsic excitations. In a new study, researchers revealed the dynamical nature of collective excitation modes in hedgehog lattices in itinerant chiral magnets. Their findings serve as the foundation for studying the dynamics of emergent magnetic monopoles in magnets.
Published New technique could help build quantum computers of the future
(via sciencedaily.com) Original source Researchers have demonstrated a new method that could enable the large-scale manufacturing of optical qubits. The advance could bring us closer to a scalable quantum computer.
Published Switching nanomagnets using infrared lasers
(via sciencedaily.com) Original source Physicists have calculated how suitable molecules can be stimulated by infrared light pulses to form tiny magnetic fields. If this is also successful in experiments, the principle could be used in quantum computer circuits.
Published New computer vision method helps speed up screening of electronic materials
(via sciencedaily.com) Original source A new computer vision technique developed by engineers significantly speeds up the characterization of newly synthesized electronic materials. Such materials might be used in novel solar cells, transistors, LEDs, and batteries.
Published Researchers engineer new approach for controlling thermal emission
(via sciencedaily.com) Original source If a material absorbs light, it will heat up. That heat must go somewhere, and the ability to control where and how much heat is emitted can protect or even hide such devices as satellites. An international team of researchers has published a novel method for controlling this thermal emission in Science.
Published Researchers demonstrate the first chip-based 3D printer
(via sciencedaily.com) Original source Researchers have demonstrated the first chip-based 3D printer, a tiny device that emits reconfigurable beams of visible light into a well of resin that rapidly cures into a solid shape. The advance could enable a 3D printer small enough to fit in the palm of a person's hand.
Published Miniaturizing a laser on a photonic chip
(via sciencedaily.com) Original source Scientists have successfully miniaturized a powerful erbium-based biber laser on a silicon-nitride photonic chip. Since typical erbium-based fiber lasers are large and difficult to scale down, the breakthrough promises major advances in optical communications and sensing technologies.
Published Splitting hairs: Science of biomechanics to understand of bad hair days
(via sciencedaily.com) Original source Academics are often accused of 'splitting hairs', but a team has now devised a machine to do just that. We all have a bad hair day from time to time, and split ends are a common problem. However, the science behind this kind of hair damage is poorly understood, which is why scientists are investigating this knotty problem.
Published 'Quantum optical antennas' provide more powerful measurements on the atomic level
(via sciencedaily.com) Original source A multi-institutional team has created atomic optical antennas in solids. The team used germanium vacancy centers in diamonds to create an optical energy enhancement of six orders of magnitude, a regime challenging to reach with conventional atomic antenna structures.
Published Perturbations simplify the study of 'super photons'
(via sciencedaily.com) Original source Thousands of particles of light can merge into a type of 'super photon' under suitable conditions. Physicists call such a state a photon Bose-Einstein condensate. Researchers have now shown that this exotic quantum state obeys a fundamental theorem of physics. This finding now allows one to measure properties of photon Bose-Einstein condensates which are usually difficult to access.
Published With programmable pixels, novel sensor improves imaging of neural activity
(via sciencedaily.com) Original source New camera chip design allows for optimizing each pixel's timing to maximize signal to noise ratio when tracking real-time visual indicator of neural voltage.
Published Nanoparticles: Risk for babies in the womb
(via sciencedaily.com) Original source Little is yet known about the health effects of nanoparticles on pregnancy. An interdisciplinary team is currently analyzing the risks for babies in the womb. Using a lab model, the researchers were able to determine that certain nanoparticles impair the release of chemical messengers in the placenta and thus the formation of blood vessels.