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
First Juno science results supported by University of Leicester's Jupiter 'forecast'
26.05.2017 | University of Leicester
Measured for the first time: Direction of light waves changed by quantum effect
24.05.2017 | Vienna University of Technology
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy