Second-harmonics emission from short-pulse laser-irradiated solid targets

Jiri Limpouch; Alexander A. Andreev; Konstantin Y. Platonov

doi:10.1117/12.334825

30 December 1998 Second-harmonics emission from short-pulse laser-irradiated solid targets

Jiri Limpouch, Alexander A. Andreev, Konstantin Y. Platonov

Proceedings Volume 3683, Laser Optics '98: Superstrong Laser Fields and Applications; (1998) https://doi.org/10.1117/12.334825
Event: Laser Optics '98, 1998, St. Petersburg, Russian Federation

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.

Citation Download Citation

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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