Articles tagged with Light Sources
Scientists have measured the mass of human chromosomes using X-rays for the first time, finding them to be significantly heavier than expected. The study's results suggest there may be unexplained excess mass in chromosomes, which could have important implications for understanding human health and diagnosing cancer.
Researchers at Dalian Institute of Chemical Physics revealed oxygen production from the three-body photodissociation of water molecule. Approximately 20% of H2O photoexcitation events resulted in O atoms, which can recombine to form O2.
A team of scientists at the National Institutes of Natural Sciences has successfully developed a broadband mid-infrared (MIR) source with high beam quality, enabling simplified environmental monitoring systems. The MIR source facilitates industrial and medical applications, including gas detection and breath analysis.
Scientists have developed a new treatment that uses wireless modulation of neurons with X-rays to treat brain disorders. The treatment involves injecting nanoparticles that light up when exposed to X-rays, eliminating the need for invasive brain surgery.
An international team has shown that a pattern of pulses can be generated in a synchrotron radiation source that combines the advantages of both systems, producing laser-like radiation with high repetition rates. This novel approach could facilitate advances in fields such as materials research and quantum physics.
Scientists have developed a laser-driven soft X-ray source using an antiresonant gas-filled hollow core fibre, achieving a record-breaking 100 kHz-class repetition rate. This breakthrough technology offers a compact, high-flux SXR source suitable for various applications in fundamental and applied sciences.
French researchers explored mesophotic corals' distribution and adaptation in French Polynesian waters, from surface to 120m depth. They found that certain filamentous algae play a crucial role in coral survival at depth by capturing shorter light wavelengths.
Researchers directly observed C+S2 product channel from CS2 photodissociation using Dalian Coherent Light Source. The study provided evidence for the origin of interstellar medium S2 fragments and demonstrated that they could be generated from CS2 photodissociation
Scientists at US national laboratories develop a new state-of-the-art half-meter-long prototype magnet that meets requirements for use in existing and future light source facilities. The design offers nearly twice the current capacity with a higher magnetic field, enabling significant improvements in efficiency and cost savings.
Researchers have developed a VUV laser system with a focal spot of <1 μm, enabling high-energy resolution (~0.3 meV) and sub-micron spatial resolution for angle-resolved photoemission spectroscopy (ARPES). This improvement allows for better visualization of electronic structures in novel quantum materials.
An international team of scientists has developed a novel technique for a high-brightness coherent and few-cycle duration source spanning 7 optical octaves from the UV to the THz. This breakthrough enables future research on time-domain analysis of substances, opening new opportunities for multimodal measurement approaches.
Researchers have created a compact, high-brightness mid-IR-driven source combining a gas-filled anti-resonant-ring photonic crystal fiber with a novel nonlinear-crystal. The table top source provides a seven-octave coherent spectrum from 340 nm to 40,000 nm, outshining brightest Synchrotron facilities in spectral brightness.
KAIST researchers have synthesized nanoparticles that emit multiple wavelengths of light from a single particle, allowing for the control of these particles' properties and creation of environmentally responsible displays and lighting. The discovery also sheds new light on the mechanisms governing the optical properties of carbon dots.
Jefferson Lab has shipped the final new section of accelerator, called a cryomodule, for an upgrade of the Linac Coherent Light Source (LCLS) at SLAC National Accelerator Laboratory. The upgraded machine will accelerate electrons at superconducting temperatures to generate 1 million X-ray laser pulses per second.
A recent study published in Science Advances suggests that LMTK3 inhibitors could be an effective treatment for breast cancer and potentially other types of cancer. The researchers successfully demonstrated the anticancer effects of LMTK3 inhibitors in cells and breast cancer models in mice.
Researchers measured streetlight contribution to urban lighting for the first time using smart city technology and satellite imagery. The study found that only around 20% of nighttime light emissions come from streetlights.
A new technique allows reliable atomic-resolution images of hybrid photoactive perovskite thin films, unlocking insights into their atomic makeup and properties. The breakthrough enables researchers to study grain boundaries and crystal defects with unprecedented precision.
FACET-II will produce highly energetic electron and positron beams, allowing researchers to understand the universe's fundamental particles and forces, as well as biology and chemistry. The facility will also aid in designing brighter-than-ever X-ray lasers and lead to improvements in existing light sources.
Researchers have created a novel ultrafast coherent light source in the extreme ultraviolet wavelength region with multi-MHz range repetition rates. The system utilizes intracavity high-order harmonic generation and achieves a repetition rate of 3 MHz, suitable for applications such as ultrafast XUV spectroscopy.
Researchers at ICFO have developed a new class of broadband solid state light emitters based on colloidal quantum dot technology, enabling efficient and compact infrared emission. The devices achieve outstanding photon conversion efficiency of up to 25% and tunable emission spectra, paving the way for various applications including spe...
Researchers at Berkeley Lab and JCAP develop new technique to map out nanoscale changes in bismuth vanadate, leading to improved oxygen production and reduced degradation. The study provides insight into the material's properties and their impact on water-splitting reactions.
Researchers at Berkeley Lab used Advanced Light Source to produce 3D reconstructions of magnetization patterns in two rare meteorite samples. The study reveals a parent body with both melted and unmelted parts, pointing to a large planetesimal with a molten metallic core.
Researchers at The Rosalind Franklin Institute have engineered llama antibodies that can bind to the SARS-CoV-2 virus, blocking its entry into human cells. These nanobodies show promise as a potential treatment for patients with severe COVID-19.
Researchers at ITMO University have created glass-ceramic lamps that produce a wider spectrum of light, including infrared, to improve plant growth in greenhouses. The lamps use chrome and glass-ceramics to emit both red and IR light, offering new possibilities for agricultural facilities.
Researchers at SLAC National Accelerator Laboratory discovered a way to separate electron spin and orbital states in a manganese oxide-based quantum material. This breakthrough could lead to the development of orbitronic devices that operate significantly faster than current spintronic devices.
Researchers developed a smart quantum technology that reduces light source identification measurements from millions to under hundred using AI. This enables quicker and less damaging light exposure in applications like microscopy and cryptography.
Researchers discovered that tube worm slime contains an iron storage protein called ferritin, which acts as a molecular battery storing energy. Artificially adding iron to the mucus increases light production, enabling a self-sustaining bioluminescence process.
Researchers from ITMO University developed a new composite material with perovskite nanocrystals, increasing operating time by almost three times and improving stability in air and water. The material retained its optical properties when dispersed in water, making it suitable for biological applications.
Researchers developed a unique film-based photosensitizer that efficiently produces singlet oxygen with enhanced photochemical stability and visible light absorption, paving the way for practical applications in sterilization, water purification, and PDT.
Researchers found that even low levels of urban sky glow can suppress melatonin production in European perch, leading to impaired sleep. This highlights the impact of artificial lighting on aquatic life's natural rhythms.
Researchers have created a nanoscale laser made of gold and zinc oxide, which can precisely localize and amplify incident laser light. The hybrid nanomaterial has the potential to be used as ultrafast optical switches or transistors in future optical computers.
Scientists demonstrate a reconfigurable chiral microlaser in a symmetric WGM microcavity, achieving unprecedented control over laser directionality and chirality. The device exploits the optical Kerr nonlinearity to break symmetry spontaneously, enabling all-optical control of chirality.
Physicists at the Paul Scherrer Institute recorded a short 'film' of the three-dimensional magnetic structure inside a material with nanoscale resolution. This reveals intricate patterns and domain walls that could be used to pack data more tightly than current methods.
Researchers at Berkeley Lab uncover mechanisms behind dinosaur blood vessel preservation and identify diverse giant viruses worldwide. The study uses X-ray imaging and spectromicroscopy to demonstrate how soft tissue structures may be preserved in dinosaur bones.
Researchers have developed a novel technology that enables the communication between light beams through solid matter, paving the way for a new form of computing. The innovative material, resembling raspberry Jell-O, incorporates light-responsive molecules that can contain and transmit information between filaments of laser light.
Researchers have discovered a new class of unconventional superconductors that exhibit a surprising 3D metallic state, unlike cuprates. This finding sheds light on how superconductivity arises and opens new directions for experiments and theoretical studies.
Researchers at ETH Zurich developed a new QLED screen technology using ultra-thin nanoplatelets that emit light in one direction, increasing energy efficiency and reducing scattering losses. The technology produces high-intensity blue light with around two-fifths of the generated light reaching the observer's eye.
Researchers at University of Würzburg developed nano antennas that can emit light in a specific direction, enabling efficient data transfer. The antennas use quantum tunnelling to generate vibrations with optical frequencies and are capable of emitting light in a particular direction.
An Argonne-led team demonstrated real-time analysis of large amounts of data from Argonne's Advanced Photon Source, showcasing low latency and high-performance capabilities. The successful demonstration highlighted the importance of near-real-time analysis for future research and development.
Researchers have successfully demonstrated how machine-learning tools can improve the stability of light beams' size for experiments by adjusting parameters that largely cancel out fluctuations. The technique has been shown to reduce beam width errors from a few percent down to 0.4 percent, with submicron precision.
Researchers found that age-dependent effects on color perception can lead to different perceptions of white LED lighting. Designs that consider these differences can improve the aesthetic appeal of LED lighting. The study suggests using modern colorimetry to minimize inter-user discrepancies in LED emitters.
Researchers at the University of Münster have created an interface that couples light sources with nanophotonic networks, enabling the integration of quantum optical circuits on chips. The interface uses photonic crystals to enhance a specific wavelength range and can be replicated using established nanofabrication processes.
Researchers at Rice University have created a tunable, nanoscale incandescent light source by combining near-nanoscale materials that absorb heat and emit light. The system's unique configuration allows for the emission of light in specific states and wavelengths, including infrared.
Researchers have developed a new method to create quantum light sources in atomically thin material layers, which will pave the way for optical circuits and potentially lead to applications such as quantum sensors, transistors, and secure encryption technologies.
Research reveals humans are more sensitive to evening light than previously thought, with large individual differences in sensitivity. Exposure to light after dusk can disrupt the circadian rhythm, leading to potential health consequences.
Researchers have developed a high-resolution imaging method that captures mid-infrared spectral images of fast events or dynamic processes. This technique could lead to higher resolution imaging of cancerous and normal tissue samples, improving the accuracy and speed of medical diagnostics.
Researchers have developed a new filter to better map the dark universe, cutting through galaxies' messy emissions to provide clearer windows into dark matter and dark energy. The new method uses shearing effects to reduce errors and provides more accurate measurements.
Scientists at Lobachevsky University have developed a new method for measuring the photochemical reflectance index using yellow-green light pulses, reducing sensitivity to lighting conditions and improving accuracy. The method has been tested on agricultural plants and found to be more reliable than traditional indicators of photosynth...
Researchers developed a new 3D simulation tool, Warp+PXR, to understand laser-plasma coupling mechanisms, enabling more detailed understanding of ultra-compact particle accelerators and light sources. The code improves accuracy and scalability, allowing for faster simulations and better understanding of complex physics experiments.
Researchers from Moscow Institute of Physics and Technology have found superinjection to be possible in homostructures, composed of a single material. This enables the creation of mass market devices, such as ultraviolet LEDs thousands of times brighter than previously thought possible.
The Helmholtz-Zentrum Berlin (HZB) has contributed to the special edition on ultrafast dynamics with X-ray methods, focusing on photochemistry and material science. Femtoslicing and BESSY VSR methods have been classified, providing a comprehensive overview of current advances in generating ultra-short X-ray pulses.
Researchers developed particle robotics systems comprising disc-shaped units that can push and pull each other in coordinated movement. The cluster can gravitate toward light sources and transport objects, with particles able to add or subtract without impacting the group.
A team of researchers from Columbia University and MIT have developed a novel robotic system comprising billions of loosely coupled particles that can move collectively towards a light source. The particle robot's decentralized architecture allows it to maintain functionality even with individual component failures, opening up possibil...
Researchers have created a new method to synthesize miniature light sources using optically active halide perovskites. The process produces millions of nanolasers in a few minutes and offers good control over synthesis, making it suitable for industrial adaptation.
A KAIST research team found that blue-enriched white light exposure improves melatonin levels and subjective perception of alertness, mood, and visual comfort compared to warm white light. This study proposes a new approach to indoor lighting strategies, benefiting residential areas, learning environments, and working spaces.
Researchers used X-ray spectroscopy to investigate liquid water's properties and found a continuous distribution model that describes near-tetrahedral liquid water at ambient conditions. This contradicts the existence of two separate phases in liquid water, supported by previous X-ray spectroscopic methods.
A team of UCLA astronomers has developed a new method to measure the universe's expansion rate, using double-image quasars to produce an estimate of the Hubble constant. The study's findings suggest that the universe is expanding at a speed of about 72.5 kilometers per second per megaparsec.
Reef-building corals use green fluorescent protein to lure in photosynthetic symbionts. The study found that corals emit green light, which attracts Symbiodinium algae, increasing their density by 10-fold.
Researchers at the University of Leicester have developed a method to optimize arc welding and additive manufacturing processes, improving efficiency and reducing costs. By tracking melt pool behavior using X-ray imaging, they discovered that controlling flow and surface tension can improve weld quality and properties.
Scientists capture four stable states of photosynthesis and fleeting steps in between, revealing the process of oxygen production. The results provide a detailed view of Photosystem II, a key protein complex responsible for splitting water and producing oxygen.