Cylindrical compression of thin wires by irradiation with a Joule-class short-pulse laser

Alejandro Laso Garcia, Long Yang, Victorien Bouffetier, Karen Appel, Carsten Baehtz, Johannes Hagemann, Hauke Höppner, Oliver Humphries, Thomas Kluge, Mikhail Mishchenko, Motoaki Nakatsutsumi, Alexander Pelka, Thomas R. Preston, Lisa Randolph, Ulf Zastrau, Thomas E. Cowan, Lingen Huang () and Toma Toncian ()
Additional contact information
Alejandro Laso Garcia: Helmholtz-Zentrum Dresden-Rossendorf
Long Yang: Helmholtz-Zentrum Dresden-Rossendorf
Victorien Bouffetier: European XFEL
Karen Appel: European XFEL
Carsten Baehtz: Helmholtz-Zentrum Dresden-Rossendorf
Johannes Hagemann: Deutsches Elektronen-Synchrotron DESY
Hauke Höppner: Helmholtz-Zentrum Dresden-Rossendorf
Oliver Humphries: European XFEL
Thomas Kluge: Helmholtz-Zentrum Dresden-Rossendorf
Mikhail Mishchenko: European XFEL
Motoaki Nakatsutsumi: European XFEL
Alexander Pelka: Helmholtz-Zentrum Dresden-Rossendorf
Thomas R. Preston: European XFEL
Lisa Randolph: European XFEL
Ulf Zastrau: European XFEL
Thomas E. Cowan: Helmholtz-Zentrum Dresden-Rossendorf
Lingen Huang: Helmholtz-Zentrum Dresden-Rossendorf
Toma Toncian: Helmholtz-Zentrum Dresden-Rossendorf

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Equation of state measurements at Jovian or stellar conditions are currently conducted by dynamic shock compression driven by multi-kilojoule multi-beam nanosecond-duration lasers. These experiments require precise design of the target and specific tailoring of the spatial and temporal laser profiles to reach the highest pressures. At the same time, the studies are limited by the low repetition rate of the lasers. Here, we show that by the irradiation of a thin wire with single-beam Joule-class short-pulse laser, a converging cylindrical shock is generated compressing the wire material to conditions relevant to the above applications. The shockwave was observed using Phase Contrast Imaging employing a hard X-ray Free Electron Laser with unprecedented temporal and spatial sensitivity. The data collected for Cu wires is in agreement with hydrodynamic simulations of an ablative shock launched by highly impulsive and transient resistive heating of the wire surface. The subsequent cylindrical shockwave travels toward the wire axis and is predicted to reach a compression factor of 9 and pressures above 800 Mbar. Simulations for astrophysical relevant materials underline the potential of this compression technique as a new tool for high energy density studies at high repetition rates.

Date: 2024
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DOI: 10.1038/s41467-024-52232-6

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