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30 December 1998 Second-harmonics emission from short-pulse laser-irradiated solid targets
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Abstract
Second harmonics intensity and spectra, emitted from solid Al target heated by obliquely incident p-polarized 1.5 ps Nd-laser pulse, are interpreted in the frame of 1D hydrodynamics model including resonance absorption, fast electron generation and transport and acceleration of ions. Second harmonics spectra reveal blue shift for laser intensity 1016 W/cm2, while red shift is observed for laser intensity 1017 W/cm2. It corresponds to a qualitative difference in the critical surface dynamic is observed in simulations. A good agreement of simulation result with experiment is observed for the lower intensity while possible explanations of certain discrepancies for the higher intensity are proposed.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiri Limpouch, Alexander A. Andreev, and Konstantin Y. Platonov "Second-harmonics emission from short-pulse laser-irradiated solid targets", Proc. SPIE 3683, Laser Optics '98: Superstrong Laser Fields and Applications, (30 December 1998); https://doi.org/10.1117/12.334825
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