University of Washington researchers have developed a method that uses a gaming graphics card to control plasma formation in their prototype fusion reactor.
Researchers at Cornell University have developed nanostructures that enable record-breaking conversion of laser pulses into high-harmonic generation, paving the way for new scientific tools for high-resolution imaging.
Highly reactive molecules cannot survive for long in nature. If researchers want to study them more closely, they therefore have to be produced under very specific laboratory conditions. Compared to "normal" molecules, many of these tiny particles have a distinguishing feature: they simply bind with everything around them and are therefore very difficult to direct.
Using time- and spin-resolved methods at BESSY II, the physicists explored how, after optical excitation, the complex interplay in the behavior of excited electrons in the bulk and on the surface results in unusual spin dynamics. The work is an important step on the way to spintronic devices based on topological materials for ultrafast information processing.
This is the first ever capture of the ultrafast motions of a high intensity laser produced plasma on a solid surface, simultaneously at different spatial locations. It achieves an experimental leap in Doppler spectrometry and is important for tracking the flow of heat and energy along the surface and watching the growth of plasma instabilities, all very important for understanding laser plasma science and pushing forward applications of high intensity, femtosecond laser driven laser plasmas.
A new study shows that it is possible to use mechanical force to deliberately alter chemical reactions and increase chemical selectivity - a grand challenge of the field.
Research team created new glasses for protection against X-ray and gamma radiation. Scientists could select new components that improved the characteristics of the samples and allowed to reduce the amount of lead in the glass composition.
Prof. DU Jiangfeng and his colleges from USTC set the most stringent laboratory constraint on the exotic spin- and velocity-dependent interaction at the micrometer scale. It's a graceful combination of experiment and theory, and it may contribute to the search for dark matter.
The absorption of energy from laser light by free electrons in a liquid has been demonstrated for the first time. Until now, this process was observed only in the gas phase. The findings, led by Graz University of Technology, open new doors for ultra-fast electron microscopy.
For the first time, the long-theorized neutron-clustering effect in nuclear reactors has been demonstrated, which could improve reactor safety and create more accurate simulations, according to a new study recently published in the journal Nature Communications Physics.