Comparative study of time-resolved K-shell spectra from aluminum plasmas generated by ultrashort laser pulses at 395 and 790 nm

Andiel, U.; Eidmann, K.; Witte, K.; Uschmann, I.; Fo¨rster, E.
January 2002
Applied Physics Letters;1/14/2002, Vol. 80 Issue 2, p198
Academic Journal
A comparative study of temporally and spectrally resolved K-shell emission from aluminum targets heated with 150 fs Ti:sapphire laser pulses at 790 and 395 nm is presented at an intensity of 5×10[sup 17] W/cm[sup 2]. Whereas at 395 nm spectrally broad intense plasma lines and a weak Kα line with durations (full width at half maximum) of 1–2 ps are observed, the spectrum at 790 nm shows weak narrow plasma lines and an intense Kα line with durations of 3–5 ps. © 2002 American Institute of Physics.


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