Articles tagged with Diffraction
Scientists at the Max Born Institute refined our understanding of strong-field processes like high harmonic generation and laser-induced electron diffraction. The study shows that returning electrons retain structural information on their initial molecular orbital, contradicting a commonly held assumption.
A new methodology examines microscale structural characteristics and changes during manufacturing processes, providing insights into electrical motor efficiency. The technique allows for the evaluation of grain size, shape, texture, and plastic deformations, enabling the tailoring of magnetic properties and minimizing losses.
Researchers at Lawrence Berkeley National Laboratory develop Multi-Tiered Iterative Phasing (M-TIP) algorithm to determine molecular structure from sparse and noisy single-particle diffraction data. This approach reduces the amount of required information, enabling the extraction of more features from limited experiments.
Researchers discovered iodide phasing is universally applicable to membrane protein structure determination, enabling a molecular-level understanding of biomolecules. This breakthrough accelerates computer-aided drug development and makes it cheaper.
A new facility at Diamond Light Source allows for long-term experiments (weeks to years) in parallel, detecting phase evolution and structural changes. This addresses the need for studying slow processes like material hydration and metal-organic framework stability.
Scientists have developed haptic interfaces to enhance collaboration and data analysis in X-ray crystallography. The technology enables real-time visualization and classification of experimental crystallization data on a cloud-based database, streamlining the process and reducing manual effort.
A public database of macromolecular diffraction experiments has been developed to archive raw data and metadata from X-ray crystallographic studies. The resource contains 3070 experiments with partially curated metadata, aiming to improve protein structure-determination methods and ensure the availability of orphan data.
Researchers have developed a new method to detect atmospheric chemicals using mid-infrared lasers, generating glowing plasma filaments that reveal chemical fingerprints.
Researchers have created a new method to create flat optical lenses that can bend light to a single point, correcting a widespread misconception. The new lens is up to 10 times thinner than current camera lenses and could be used in medical devices, drones, and future smartphones with high-powered cameras.
Researchers at University of Strathclyde discovered that ultra-intense laser light passing through a thin foil can be used to control charged particle motion. This new observation has wide-reaching implications for advancing smaller, cheaper, laser-driven particle accelerators.
A team at HZB has developed an alternative method for representing microstructures in polycrystalline materials, utilizing Raman microspectroscopy. This non-invasive technique allows for orientation distribution mapping without specimen preparation, enabling analysis under ambient conditions.
Physicists have developed ultrashort electron pulses to capture atomic motions in four dimensions, providing a sharp snapshot of molecular processes. The new technique enables the visualization of single atoms and reconstruction of atomic structures, revolutionizing our understanding of molecular dynamics.
Wladek Minor is rescuing vital submicroscopic data with a $20,000 grant, making it accessible for scientists and industry. His online search engine simplifies data access, speeding up research and potentially leading to new treatments.
Researchers successfully fabricated stable and large gratings in single layer graphene, enabling the study of massive objects' quantum mechanical nature. The team's achievement reduces material thickness to the ultimate limit, increasing interaction time between molecules and masks.
Researchers developed a novel diffraction spectroscopy technique to probe chemical processes at the electrode/electrolyte interface, offering enhanced sensitivity and specificity. The method uses graphene gratings to detect molecular vibrations with sub-monolayer sensitivity.
The article explores aperiodic crystals and their implications on our understanding of crystalline order. Recent research has shown that the current definition of crystals, based on point-like diffraction, may need revision as new materials with non-trivial point components in their diffraction are discovered.
Researchers developed a metamaterial hyperlens that can improve early cancer detection, nanoelectronic manufacturing, and single-molecule observation. The design overcomes diffraction limitations in the visible frequency range, enabling higher resolution imaging and potentially leading to breakthroughs in various fields.
Researchers combined powder diffraction data with electron crystallography to solve modulated structures. The technique provides unprecedented detail down to sub-angstrom resolution, improving the reliability of crystal structure investigation.
Researchers have clarified the compound's phases, thermal expansion and hydrogen bonds, shedding new light on its properties. The study uses advanced methods to determine the crystal structure and electronic structure of ammonium carbonate monohydrate.
The new SHELXT program solves the phase problem for single-crystal reflection data using a novel dual-space algorithm, extending resolution and accommodating missing data. With high success rates, it has already solved thousands of structures.
Advances in X-ray technology enabled refinement of previously intractable proteins like the ribosome and viruses. The Deformable Elastic Network (DEN) approach optimizes protein structure prediction by adjusting features to fit diffraction data, reducing ambiguities.
Researchers at Brookhaven Lab find that orbital fluctuations in iron-based compounds enhance electron pairing, a key mechanism behind superconductivity. By precisely pinning down electron distributions, they open a new frontier for condensed matter physics.
A novel imaging method based on SISAR is proposed to extract the target profile accurately in forward scatter radar (FSR). The method can effectively deduce the target type, such as a cruise missile or unmanned aerial vehicle. Simulations are conducted to evaluate the validity of the algorithm, showing promising results for stealth tar...
Physicists at UT Austin have developed the world's smallest semiconductor laser, operating below the 3D diffraction limit. The breakthrough device uses nanolasers to generate optical signals and transmit information, potentially replacing electronic circuits.
Researchers at Michigan Technological University have made a major step toward creating superlenses that can see objects as small as 100 nanometers across using metamaterials and plasmons. This could enable ultra-high-resolution microscopes and cell phone cameras, making high-powered microscopy accessible to the public.
A new electron microscopy method resolves the structure of tiny crystals, opening up a door to nanostructures. The method is faster and more accurate than conventional methods, allowing for detailed analysis of materials like zeolites and minerals.
Scientists from Spain and France have obtained single-crystal X-ray diffraction images of sepiolite, a lightweight porous mineral used in cat litter. The study opens the path to industrial synthesis and further improvement of its properties, which could lead to edible product applications.
Artificial muscles can create a full range of colors by adjusting the diffraction grating, overcoming limitations of existing displays. The technology uses white LED lights and could lead to consumer products in under eight years.
Majkrzak's work on neutron reflectometry has significantly improved the field's ability to analyze atomic and magnetic structures. His research findings have numerous applications in biology, particularly in the study of materials at the molecular level.
Researchers at Max Planck Institute in Germany have developed Stimulated Emission Depletion (STED) microscopy, enabling resolutions of up to 16nm with conventional optics. This breakthrough surpasses the long-held resolution limit imposed by Abbe's law.
Researchers at UC Berkeley develop a silver superlens that breaks the diffraction limit, enabling resolution of up to 60 nanometers in images of nanowires and biological samples. This breakthrough opens doors to advances in nanoengineering, biomedical imaging, and high-density electronic circuitry.