Abstract
Targets consisting of 25 nm Al layers buried in solid carbon at depths of up to 400 nm have been irradiated with frequency doubled Ti:sapphire laser pulses of 150 fs duration at an intensity of a few 1017W/cm2. The analysis of the emitted Al K-shell spectra yields densities close to that of solid Al and temperatures around 500 eV. By using the cold Si Kα line for wavelength calibration, the presence of a red dense-plasma line shift for several K-shell resonance and associated satellite lines is clearly demonstrated.