It has been designed to study novel nanoscale materials and devices aimed at, for example, harvesting solar energy more efficiently, providing more efficient lighting, or enabling next-generation computing.
The weak interaction of hard x-rays with matter allows researchers to penetrate into materials, look through process gases and study sub-surface phenomena. At the same time, this property also has made fabrication of efficient x-ray optics difficult, limiting the degree to which hard x-rays can be focused.
Using advanced x-ray optics called Fresnel zone plates -- similar in appearance to the large Fresnel lenses used to reflect light in lighthouses – along with a laser-based nanopositioning system, Argonne is able to focus x-rays to the smallest spot yet achieved with this type of illumination source. The microscope combines scanning-probe and full-field transmission imaging to create both three-dimensional visualizations of complex systems and devices as well as to perform sensitive quantitative analysis of elemental composition, chemical states, crystallographic phase and strain.
"It's the highest resolution microscope of its type in the world right now," acting CNM Division Director Stephen Streiffer said. "The Nanoprobe is one of the tools that make the CNM unique."
The Nanoprobe uses x-rays with photon energies between 3-30 kiloelectron volts to produce images with initially 30 nanometer resolution – roughly the size of 100 atoms. As x-ray optics continue to improve and novel x-ray optics are developed, it is anticipated that significantly higher spatial resolution will be reached over the lifetime of the Nanoprobe.
The Hard X-ray Nanoprobe was designed, constructed and is operated in partnership between the CNM and the X-Ray Science Division of the Advanced Photon Source (APS) at Argonne National Laboratory. The CNM pursues the development and characterization of novel nanoscale materials and devices. The capabilities of Argonne's Advanced Photon Source play a key role in that their hard X-rays, utilized by the Nanoprobe beamline, provide unprecedented capabilities to characterize very small structures.
“The instrument allows characterization of nanoscale materials and devices in previously unavailable detail, and is particularly well suited for the study of buried structures, in real world environments and for dynamics." Nanoprobe Beamline Director Jörg Maser said.
The Nanoprobe became operational in October of 2007 and is open to all science users based on peer review under the user programs of the APS and the CNM. The CNM is a national user facility, providing tools and expertise for nanoscience and nanotechnology research. Funding for this research was provided by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. The mission of the Basic Energy Sciences (BES) program - a multipurpose, scientific research effort - is to foster and support fundamental research to expand the scientific foundations for new and improved energy technologies and for understanding and mitigating the environmental impacts of energy use.
Argonne National Laboratory brings the world’s brightest scientists and engineers together to find exciting and creative new solutions to pressing national problems in science and technology. The nation’s first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America’s scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for U.S. Department of Energy's Office of Science.
Brock Cooper | newswise
Computer model predicts how fracturing metallic glass releases energy at the atomic level
20.07.2018 | American Institute of Physics
What happens when we heat the atomic lattice of a magnet all of a sudden?
18.07.2018 | Forschungsverbund Berlin
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
23.07.2018 | Materials Sciences
23.07.2018 | Information Technology
23.07.2018 | Health and Medicine