Probing ultrafast laser plasma processes inside solids with resonant small-angle x-ray scattering

0554158 - FZÚ 2022 RIV US eng J - Journal Article
Gaus, L. - Bischoff, L. - Bussmann, M. - Nikl, Jan … Total 37 authors
Probing ultrafast laser plasma processes inside solids with resonant small-angle x-ray scattering.
Physical Review Research. Roč. 3, č. 4 (2021), č. článku 043194. E-ISSN 2643-1564
Research Infrastructure: ELI Beamlines III - 90141
Institutional support: RVO:68378271
Keywords : harmonic generation * laser-matter interaction
OECD category: Fluids and plasma physics (including surface physics)
Method of publishing: Open access

Extreme states of matter exist throughout the universe, e.g., inside planetary cores, stars, or astrophysical jets. Such conditions can be generated in the laboratory in the interaction of powerful lasers with solids. Yet, the measurement of the subsequent plasma dynamics with regard to density, temperature, and ionization is a major experimental challenge. However, ultrashort x-ray pulses provided by x-ray free electron lasers (XFELs) allow for dedicated studies, which are highly relevant to study laboratory astrophysics, laser-fusion research, or laser-plasma-based particle acceleration. Here we report on experiments that employ a novel ultrafast method, which allows us to simultaneously access temperature, ionization state, and nanometer scale expansion dynamics in high-intensity, laser-driven, solid-density plasmas with a single x-ray detector. Using this method, we gain access to the expansion dynamics of a buried layer in compound samples.
Permanent Link: http://hdl.handle.net/11104/0328787