Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering
Randolph L, Banjafar M, Preston TR, Yabuuchi T, Makita M, Dover NP, Roedel C, Goede S, Inubushi Y, Jakob G, Kaa J, Kon A, Koga JK, Ksenzov D, Matsuoka T, Nishiuchi M, Paulus M, Schon F, Sueda K, Sentoku Y, Togashi T, Bussmann M, Cowan TE, Klaeui M, Fortmann-Grote C, Huang L, Mancuso AP, Kluge T, Gutt C, Nakatsutsumi M (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 4
Article Number: 033038
Journal Issue: 3
DOI: 10.1103/PhysRevResearch.4.033038
Abstract
Observing ultrafast laser-induced structural changes in nanoscale systems is essential for understanding the dynamics of intense light-matter interactions. For laser intensities on the order of 1014W/cm2, highly collisional plasmas are generated at and below the surface. Subsequent transport processes such as heat conduction, electron-ion thermalization, surface ablation, and resolidification occur at picosecond and nanosecond timescales. Imaging methods, e.g., using x-ray free-electron lasers (XFEL), were hitherto unable to measure the depth-resolved subsurface dynamics of laser-solid interactions with appropriate temporal and spatial resolution. Here we demonstrate picosecond grazing-incidence small-angle x-ray scattering (GISAXS) from laser-produced plasmas using XFEL pulses. Using multilayer (ML) samples, both the surface ablation and subsurface density dynamics are measured with nanometer depth resolution. Our experimental data challenges the state-of-the-art modeling of matter under extreme conditions and opens new perspectives for laser material processing and high-energy density science.
Involved external institutions
European XFEL GmbH
Germany (DE)
National Institutes for Quantum and Radiological Science and Technology
Japan (JP)
Universität Siegen
Germany (DE)
Osaka University
Japan (JP)
Technische Universität Dortmund
Germany (DE)
Super Photon Ring – 8 GeV (SPring-8)
Japan (JP)
Japan Synchrotron Radiation Research Institute (JASRI)
Japan (JP)
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
Germany (DE)
Technische Universität Dresden
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
Germany (DE)
National Institutes for Quantum and Radiological Science and Technology
Japan (JP)
Universität Siegen
Germany (DE)
Osaka University
Japan (JP)
Technische Universität Dortmund
Germany (DE)
Super Photon Ring – 8 GeV (SPring-8)
Japan (JP)
Japan Synchrotron Radiation Research Institute (JASRI)
Japan (JP)
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
Germany (DE)
Technische Universität Dresden
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
How to cite
APA:
Randolph, L., Banjafar, M., Preston, T.R., Yabuuchi, T., Makita, M., Dover, N.P.,... Nakatsutsumi, M. (2022). Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering. Physical Review Research, 4(3). https://doi.org/10.1103/PhysRevResearch.4.033038
MLA:
Randolph, Lisa, et al. "Nanoscale subsurface dynamics of solids upon high-intensity femtosecond laser irradiation observed by grazing-incidence x-ray scattering." Physical Review Research 4.3 (2022).
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