Record Details

Title:
Ultrafast observation of lattice dynamics in laser-irradiated gold foils
Affiliation(s):
XFEL.EU staff, Other
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Topic:
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Abstract:
We have observed the lattice expansion before the onset of compression in an optical-laser-driven target, using diffraction of femtosecond X-ray beams generated by the SPring-8 Angstrom Compact Free-electron Laser. The change in diffraction angle provides a direct measure of the lattice spacing, allowing the density to be calculated with a precision of ±1%. From the known equation of state relations, this allows an estimation of the temperature responsible for the expansion as <1000 K. The subsequent ablation-driven compression was observed with a clear rise in density at later times. This demonstrates the feasibility of studying the dynamics of preheating and shock formation with unprecedented detail.
Imprint:
USA, AIP Publishing, 2017
Journal Information:
Applied Physics Letters, 110 (110), 071905 (2017)
External related publications:
Language(s):
English


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 Record created 2018-06-22, last modified 2018-06-22

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