Stark broadening of satellite lines in silicon plasmas driven by femtosecond laser pulses

Abstract : Silicon targets irradiated at large incidence angle (60°) with ultrashort (120 fs) P-polarized laser pulses at high intensities (≊1016 W cm-2) display significantly broadened K-shell x-ray line emission. To analyze the spectra we have calculated Stark-broadened line profiles for the Heα resonance line and its satellite transitions in Li-, Be-, and B-like ions with spectator electrons in theL and M shells. Results indicate that the emission is characteristic of near solid densities and that there is an unusually high contribution from high-order satellite transitions; this could be due to a combination of high-density and transient effects.
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Submitted on : Saturday, March 20, 2010 - 12:43:20 AM
Last modification on : Friday, August 9, 2019 - 10:58:04 AM

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R. Mancini, A. Schlyaptseva, Patrick Audebert, Jean-Paul Geindre, S. Bastiani, et al.. Stark broadening of satellite lines in silicon plasmas driven by femtosecond laser pulses. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 1996, 54 (4), pp.4147-4154. ⟨10.1103/PhysRevE.54.4147⟩. ⟨hal-00465614⟩

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