The light was produced by Jefferson Lab's Free-Electron Laser facility. The laser delivered vacuum ultraviolet light in the form of 10 eV photons (a wavelength of 124 nanometers). This color of light is called vacuum ultraviolet because it is absorbed by molecules in the air, requiring its use in a vacuum.
"We have succeeded in delivering 10 eV photons for the first time," says George Neil, Jefferson Lab associate director for the FEL Division. "Using a hole out-coupling mirror on the Jefferson Lab Ultraviolet Demonstration FEL, we delivered vacuum ultraviolet harmonic light to a calibrated VUV photodiode and measured five nanojoules of fully coherent light in each micropulse."
The feat opens the door to many lines of research that were previously inaccessible.
For instance, the FEL may soon enable a method of determining the age of materials that far outstrips carbon dating. Radio-carbon dating allows scientists to estimate the age of some materials up to roughly 62,000 years. But radio-krypton dating could potentially allow scientists to determine the age of materials between 100,000 to 1 million years. The 10 eV light from the FEL would be used to produce so-called metastable krypton atoms for use in this dating method. The method can contribute to ocean circulation models and maps of groundwater movement, as well as dating polar ice.
"This new laser is also a perfect tool to study novel materials with great potential for addressing issues such as energy and the environment," said Gwyn Williams, FEL basic research program manager.
"We still have a lot of work ahead of us before experiments can begin," Williams said. "In the new year, we'll be working to deliver light into a lab for measurement and future experiments. We hope to accomplish those goals by March."
The Free-Electron Laser program and individual research projects are supported by various organizations. These include the Department of Defense's Office of Naval Research, the Air Force Research Laboratory and the Joint Technology Office, the Commonwealth of Virginia and the Department of Energy's Basic Energy Sciences. Key equipment was provided by the Wisconsin Synchrotron Radiation Center and Cornell University.
Kandice Carter | EurekAlert!
CeGlaFlex project: wafer-thin, unbreakable and flexible ceramic and glass
25.04.2017 | Fraunhofer-Institut für Lasertechnik ILT
Additive manufacturing, from macro to nano
11.04.2017 | Laser Zentrum Hannover e.V.
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences