Researchers have developed a novel X-ray technique called stochastic Stimulated X-ray Raman Scattering (s-SXRS) that uses noise to achieve unprecedented resolution in atomic and electronic structure imaging, enabling detailed insights into chemical reactions and material properties, with potential widespread applications in science and industry.
Physicists at the University of Stuttgart have developed a quantum microscopy method that captures electron movement at the atomic level with high spatial and temporal resolution using ultrafast terahertz pulses. This breakthrough, published in Nature Physics, allows for targeted material development by understanding how impurities affect electron behavior, potentially leading to advancements in ultra-fast switching materials for sensors and electronic components.
Scientists have captured the real-time movement of electrons in liquid water for the first time using attosecond X-ray pulses, providing new insights into the electronic structure of molecules and radiation-induced chemistry. This breakthrough opens up possibilities for understanding the effects of radiation exposure in various fields such as space travel, cancer treatments, nuclear reactors, and legacy waste. The research, published in Science, was made possible by a multi-institutional team's collaboration and the development of attosecond X-ray free-electron lasers, marking a significant advancement in the field of attosecond physics.
Scientists awarded the 2023 Nobel Prize in physics have made significant contributions to attosecond science, which involves capturing the ultrafast motion of electrons using attosecond laser pulses. By using these pulses as strobes, researchers can create "attosecond movies" of electron behavior, providing fundamental insights into their motion. This understanding could lead to advancements in controlling chemical reactions, engineering new molecules, and developing ultrafast switches for faster electronics. Attosecond science also holds potential applications in EUV lithography and the study of particle motion on even faster timescales.
Physicists at the Max Planck Institute for Nuclear Physics have developed a novel method to track the motion of an electron in a strong infrared laser field in real time. The method links the absorption spectrum of the ionizing extreme ultraviolet pulse to the free-electron motion driven by the subsequent near-infrared pulse. The technique used is attosecond transient absorption spectroscopy together with the reconstruction of the time-dependent dipole moment, which connects the time-dependent dipole moment with the classical motion of the ionized electrons. The new method demonstrated here for helium can be applied to more complex systems such as larger atoms or molecules for a broad range of intensities.