Articles tagged with Light Sources
Researchers developed a new algorithm, GDP-ADMM, to further enhance the capabilities of SHARP in reconstructing high-resolution images from ptychographic datasets. The new framework takes advantage of state-of-the-art mathematical aspects to improve data acquisition and image resolution.
A team of physicists has demonstrated a way to confine light in a waveguide array, making it insensitive to defects. This innovation could lead to cheaper and more efficient photonic devices, such as lasers and solar cells, by reducing material imperfections.
The NSLS-II's Hard X-ray Nanoprobe has demonstrated capabilities to observe materials down to 10 nanometers, enabling scientists to visualize single molecules. This technology will enable the study of various materials properties simultaneously.
Lehigh University has launched a long-term collaboration with the National Synchrotron Light Source II at Brookhaven National Lab to explore cutting-edge materials and biomedical research. The partnership aims to foster collaboration among researchers from academia, government labs, and industry.
Scientists decoded faint distortions in the universe's earliest light to reveal huge tubelike structures known as filaments, serving as superhighways for delivering matter to dense hubs. The study provides new insights into the formation and evolution of the cosmic web, including dark matter.
A team of MIT researchers has developed a machine-learning system that can automatically search for debris disks around stars, indicating the presence of exoplanets. The system achieved a 97% accuracy rate and identified 367 previously unexamined celestial objects as promising candidates for further study.
Researchers designed an LED-based train headlight that reduces energy consumption and emits less CO2. The new design uses precisely positioned high-efficiency LEDs to create a bright beam while minimizing electricity use.
The new design doubles the conversion efficiency of conventional systems, allowing for greater bandwidth and resolution in detecting pollutants and diseases. The technology also enables the miniaturization of such systems onto a chip, leading to new applications for molecular detection and remote sensing.
Researchers have discovered two colossal galaxies from the early universe, each containing around 273 billion suns' worth of gas and dust. The combined mass of these galaxies is nearly as large as physically possible at that time, suggesting a vast amount of dark matter surrounding them.
Researchers have developed a high-quality magnetoelectric material that can store information using both electric and magnetic fields. The material enables the creation of low-power devices with multifunctional capabilities, paving the way for more efficient electronics.
A study by scientists at the Department of Energy's Lawrence Berkeley National Laboratory has revealed a unique chain mail-like woven microstructure in parrotfish teeth that enables their remarkable bite and resilience. This structure also provides a blueprint for creating ultra-durable synthetic materials.
The NIST team has developed a directional color filter that can manipulate multiple wavelengths of light simultaneously and detect the source of incoming light. The device uses a nonuniform grid to selectively filter white light based on its angle of illumination, enabling applications in displays, solar energy harvesting, and sensing.
A research team at DGIST has developed an electroluminescent film that is four times brighter than existing ones, using the retro-reflection principle of nocturnal animal eyes. The film can fabricate high luminance electroluminescent light sources by controlling luminescent particle concentrations.
Researchers found norovirus in healthy Indonesian volunteers with no symptoms, suggesting they are a source of outbreaks. The virus was also detected in recombinant variations, indicating high infection rates among asymptomatic individuals.
Researchers discovered how a bacterial protein loosely binds to a mineral, allowing the bacterium to breathe in oxygen-deprived conditions. The study revealed that this protein interacts relatively weakly with the mineral, requiring less binding energy than typical proteins.
Researchers developed a new laser source that stores light energy in nanoscale disks, enabling ultrafast light pulses suitable for studying neural connections and machine learning. This innovation has the potential to revolutionize optically powered neurocomputers.
Researchers used Diamond Light Source's synchrotron facility to study seed coat thinning in horsegram, a bean commonly eaten in southern India. The high-resolution X-ray computed tomography technique showed that domestication occurred between 2000 BC and 1200 BC.
Scientists at Eindhoven University of Technology developed a new material that can undulate and propel itself forward under the influence of light. The device, the size of a paperclip, is the world's first machine to convert light directly into walking using one fixed light source.
Biophysicists visualized type IV pili (T4P) dynamics using optical microscopy, revealing asymmetric distribution triggered by blue light. T4P extension activated at the forward side of cells illuminated laterally with blue light, driving forward motion and navigation.
Berkeley Lab researchers have found that carrageenan, a seaweed derivative, acts as a stabilizer in lithium-sulfur batteries, allowing for more cycling and an extended lifetime. The discovery opens up new possibilities for low-cost, high-energy energy storage solutions.
A study published in PLOS ONE found that migratory Nathusius and Soprano bats are attracted to artificial green light, which could disrupt their flight paths. The researchers exposed bats to brief periods of green light at a wavelength of 520nm, recording increased calling activity near the light source.
Scientists at Diamond Light Source developed a new Pan-DDAA method to extract clear detail from X-ray diffraction data. The approach identifies noise sources and removes them, exploiting the ability of Diamond's beamline to repeat measurements quickly.
New night lights maps offer daily, high-definition views of Earth at night, allowing for real-time monitoring of human activities, power outages, and environmental changes. The data can aid short-term weather forecasting, disaster response, and research on urbanization and economic changes.
Scientists used X-ray laser pulses to investigate how energy from light transforms a molecule, revealing a mechanism for protecting biomolecules against light-induced damage. The research provides insight into excited state proton transfers in DNA and other molecules.
Researchers at Eindhoven University of Technology have developed a nano-LED that is 1000 times more efficient than predecessors, enabling gigabits per second data speeds. The new light source has the potential to take the brake off data traffic growth on chips.
Scientists at the University of Strathclyde discovered a way to create narrowband radiation with high efficiency, challenging a fundamental understanding of electromagnetic radiation. This breakthrough has significant implications for materials science and medical treatments.
The Dalian Coherent Light Source (DCLS) is a new bright VUV FEL light source, unique in operating within the VUV region and delivering world's brightest FEL light in an energy range of 8 to 24 eV. It has applications in studying basic energy science, chemistry, physics, and atmospheric sciences.
A recent study by researchers at the University of Bristol found that LED lights are less attractive to nuisance insects compared to traditional filament lamps. The study, funded by the Natural Environment Research Council and Integral LED, used customised traps at 18 field test sites across south-west England.
The Munich Compact Light Source (MuCLS) has been evaluated for its performance, demonstrating its ability to conduct state-of-the-art X-ray imaging. The mini-synchrotron technology enables local measurements and is paving the way for potential clinical applications.
Scientists developed a new X-ray microscopy technique to image nanoscale changes in lithium-ion battery particles as they charge and discharge. The real-time images reveal non-uniform charging processes that curbs battery performance over time, offering insights to improve batteries for electric vehicles and smartphones.
Researchers at University of California - San Diego create method to improve light interaction with small details called glints on surfaces, enabling accurate rendering of materials with metallic finishes and injection-molded plastics. The new algorithm is 100 times faster than current methods and can be used in animations.
Swiss researchers improve an interferometry technique to directly exploit fringe interference, acquiring high-resolution images without the need for a G2 grating or small pixel detectors. The new setup increases flux efficiency by a factor of two and reduces overall production costs.
Astronomers have discovered a new 'Canarias Einstein ring', a rare and unusual phenomenon that provides insight into the composition of distant galaxies. The discovery was made using data from the Gran Telescopio CANARIAS (GTC) and offers valuable information about the structure of gravitational fields and dark matter in galaxy lenses.
A team of researchers from Karlsruhe Institute of Technology (KIT) has developed a compact, miniaturized switching element that converts electric signals into clearly defined optical signals. The innovation uses integrated carbon nanotubes and nanostructured waveguides to generate narrow-band light in the desired color on the chip.
A new study by Swiss zoologists found that urban moths have learned to avoid light due to high mortality rates in rural populations. The researchers observed a significant decrease in flight-to-light propensity among moths exposed to heavy light pollution.
Researchers have developed hybrid pixel array detectors that can achieve low noise for single-photon detection and spectroscopic imaging. The new technology uses standard components, enabling the creation of larger and more optimized systems.
Researchers from Brown University have developed a technique that eliminates the need for highly specialized external light sources, enabling more versatile and compact devices. This breakthrough could lead to the creation of hand-held environmental sensors and biosensors that can perform complete blood workups from single drops.
A team of MIT researchers has developed a novel way to recycle unwanted infrared light from thermal emitters like incandescent bulbs, improving their efficiency and reducing waste. The innovative design features nanophotonic structures that spectrally filter emitted light, allowing visible light to pass through.
Researchers have developed a non-destructive inspection method using terahertz waves to visualize PC steel wires hidden inside concrete and steel bridges. This technology is particularly useful for extradosed bridges where the wires are covered in resin jackets, reducing the risk of corrosion during inspections.
A study investigates how to control noise in quantum dot LEDs by modulating bias current, leading to stabilized light sources suitable for optical telecommunications. The researchers found that spiking competition of quantum dots enhances self-feedback and affects noise perturbation.
Scientists have discovered a previously undocumented sheet-silicate crystal structure in the alkali-aggregate reaction, a chemical process that weakens concrete over decades. This breakthrough could lead to the development of more durable concrete, reducing global infrastructure failures.
Researchers studied a 320-million-year-old fossil using X-ray microscopy, revealing evidence of its digestive system for the first time. The discovery sheds light on the early evolutionary history of echinoderms and highlights previously unknown differences between ancient and modern species.
Researchers at ICFO have developed a new light source that detects minute changes in spectral features, ideal for identifying DNA mutations and cellular malfunctions. The mid-wave infrared range is crucial for resonantly exciting molecular vibrations, leaving fingerprints in the spectrum for identification.
Celeste is a hierarchical model designed to catalog stars, galaxies and light sources in the universe, enabling astronomers to identify promising galaxies for spectrograph targeting and better understand Dark Energy. The model aims to improve data analysis methods, significantly reducing the time and effort spent working with image data.
A new mathematical theory and algorithm, Multi-tiered iterative phasing (M-TIP), solves the reconstruction problem for fluctuation X-ray scattering data. This approach enables quick determination of general structure in minutes on a desktop computer, unlocking new advances in biophysics.
The Dartmouth College team developed a system called LiSense that reconstructs human postures continuously and unobtrusively using VLC. The researchers overcame two key challenges to realize shadow-based human sensing, enabling a new passive health and behavioral monitoring paradigm.
Researchers at UCF developed a technique for creating the world's first full-color, flexible thin-film reflective display inspired by nature. The new method reflects ambient light and can be controlled by voltage, offering potential implications for various electronics and whole new categories of displays.
Researchers at Argonne National Laboratory develop a new way of manipulating high-intensity X-rays using a small microelectromechanical system (MEMS) mirror. The device acts as an ultrafast mirror reflecting X-rays at precise times and specific angles, allowing for the selection of extremely brief but precise X-ray bursts.
Dr. Claudio Pellegrini and Dr. Charles V. Shank have made significant contributions to scientific research, advancing our understanding of relativistic electron beams and ultrafast lasers. Their work has led to the development of the first hard x-ray free-electron laser, transforming the field of X-ray physics.
Researchers at Berkeley Lab developed a technique called PSB-KAC, which provides full control of single X-ray pulses without affecting beams for other users. This allows for timed experiments with optimized signal-to-noise ratios and reduced radiation damage.
Kobe University has developed a mercury-free film-type ultraviolet light source for medical applications, which can deliver high-intensity radiation to only the affected area, reducing treatment time and patients' stress. The technology uses plasma excitation similar to plasma televisions and is expected to begin sales in October 2015.
Researchers at Texas A&M University demonstrate a bright, speckle-free strobe light source using random Raman lasing emission, enabling rapid imaging of microscopic forms of life. The new laser-like light source has a low level of spatial coherence and can produce high-speed images with improved quality.
Scientists develop a new technique to reduce the halo effect in multifocal lenses, allowing patients with presbyopia to use them safely at night. The technique smoothes the surface structure of contact or intra-ocular lenses, reducing optical aberrations and improving depth of focus.
A new technique based on Optical Coherence Tomography allows conservators to analyze the hidden layers in priceless paintings without removing physical samples. This enables detailed information on the chemical composition of paint and coatings applied over time.
Researchers have developed a new approach to sharpen nanoscale microscopy by precisely determining the light source's location, overcoming diffraction limit challenges. This innovation enables super-resolution imaging with accuracy, correcting for image-dipole distortions and improving spatial resolution.
Researchers have developed a new light therapy that can reach deep tumors using nanoparticles and FDG, producing different kinds of free radicals that overwhelm tumor cells. This treatment shows promise in reducing cancer growth and increasing survival rates with minimal toxic side effects.
A recent study found that American cities emit several times more light per capita than comparably sized German cities. The difference grew with city size, highlighting the need for further research on urban light emissions to uncover the reasons behind these disparities.
Researchers at Berkeley Lab discover that Roman volcanic ash-lime mortar binds fragments with a durable calcium-alumino-silicate mineral, preventing microcracks from propagating and preserving cohesion. This finding has significant environmental advantages over modern Portland cement-based concretes.
Researchers are experimenting with smart spaces that track users' gestures and separate shadows from light, enabling a continuous flow of data wirelessly. The integrated visible light communication project aims to bridge the gap in VLC's practical systems and networking problems.
New research uses glass to create a material that can transfer information using light, increasing computer processing speeds and power.