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Attosecond Physics

All articles tagged with #attosecond physics

science1 year ago

"Real-Time Capture of Electron Motion in Liquid Water Reveals Fastest Molecular Snapshot"

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.

science1 year ago

"Capturing Electrons in Action: Groundbreaking Real-Time Study of Liquid Water"

Scientists have successfully captured the movement of electrons in real-time in liquid water using attosecond X-ray pulses, providing new insights into the electronic structure of molecules in the liquid phase and the immediate electronic response to X-ray exposure. This breakthrough allows for a deeper understanding of radiation-induced chemistry and its effects on objects and people, with potential applications in space travel, cancer treatments, nuclear reactors, and legacy waste. The research, published in the journal Science, involved a multi-institutional collaboration and marks a significant advancement in attosecond physics.

physics2 years ago

Resolving Quantum Interference in Photoionization with Attosecond Precision

Researchers have developed a new method for conducting attosecond physics research by building on the RABBITT technique. By changing the polarization of laser pulses, they were able to measure individual contributions in photoionization and resolve quantum interference between different pathways. The experiments were conducted on helium, neon, and argon samples, and the results were validated through simulations. This method could provide insights into the fundamental dynamics of photoionization and potentially lead to advancements in controlling electrons using light for applications in electronic circuitry, photovoltaics, and radiation damage prevention in medical tools.

physics2 years ago

Sub-Cycle Optical Dynamics Captured by Attosecond Electron Microscopy.

Researchers have developed a new technique for attosecond electron microscopy that allows for the observation of sub-cycle optical dynamics in materials. The technique involves using tilted electron pulses to image electromagnetic waveforms with unprecedented temporal resolution. This could lead to new insights into the behavior of plasmonic and chiral nanostructures, as well as the study of ultrafast electron dynamics in materials.

science-and-technology2 years ago

Meta-optics reveals attosecond physical processes in vacuum tunnel.

A new meta-optics for microscopes with extremely high spatial and temporal resolution has been developed at Harvard and successfully tested at Graz University of Technology. The lens of the microscope has made it possible to use extreme ultraviolet radiation for the first time, enabling it to follow ultra-fast physical processes in the attosecond range. The possible applications for the new research field of attosecond microscopy are manifold, especially in semiconductor and solar cell technology.