Ultrafast Laser Physics and Attosecond Dynamics of Atoms and Molecules
This community investigates the interaction of intense, ultrashort laser pulses with matter, focusing on the generation of extreme ultraviolet and X-ray radiation and the control of electron dynamics on femtosecond and attosecond timescales.
The work centers on high-order harmonic generation, free-electron lasers, and terahertz radiation sources to probe atomic and molecular structures. Recurring methodologies include femtosecond pulse shaping, transient absorption spectroscopy, and double ionization studies, particularly in noble gases like helium and argon. Applications span the development of high-repetition-rate laser systems, quantum cascade lasers for terahertz emission, and the use of hollow-core fibers for high-power delivery. The research also addresses the generation of soft X-rays and the control of electron wave packets through optical fields, providing tools for observing charge migration and correlation effects in isolated systems.
The largest share of the community's output is found in neon research, accounting for 6.6% of all neon research, and in helium research, accounting for 5.0% of all helium research. Helium also contributes the highest absolute number of papers within this group, with 4,830 entries.
The community comprises 33,291 papers, publishing most frequently in Physical Review A, Journal of Physics B: Atomic, Molecular and Optical Physics, and Physical Review Letters.
Recent work focuses on the delivery of high-power lasers through hollow-core fibers, the generation of few-cycle vacuum ultraviolet pulses, and the application of attosecond techniques to probe electron correlations and surface structures in materials like water and monolayer WS2.