Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.115001
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Funding
- DOE Office of Science, Fusion Energy Science [SF00515, FWP 100182]
- DFG [SFB 652]
- Laboratory Directed Research and Development grant
- Alexander von Humboldt Foundation
- Volkswagen Foundation
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We present the first highly resolved measurements of the plasmon spectrum in an ultrafast heated solid. Multi-keV x-ray photons from the Linac Coherent Light Source have been focused to one micrometer diameter focal spots producing solid density aluminum plasmas with a known electron density of n(e) = 1.8 x 10(23) cm(-3). Detailed balance is observed through the intensity ratio of up- and down-shifted plasmons in x-ray forward scattering spectra measuring the electron temperature. The plasmon damping is treated by electron-ion collision models beyond the Born approximation to determine the electrical conductivity of warm dense aluminum.
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