ASE-driven Shock Propagation in the Interaction of an Ultra-short Intense Laser with a C8D8 Foil

作者：Kwon Duck Hee^*; Lee Sungman; Kwon Sung Ok; Cha Hyungki

来源：Journal of the Korean Physical Society, 2009, 55(2): 538-542.

• Radiation hydrodynamics
• Ultra-short intense laser
• Ion acceleration

The pre-deformed plasma profile of deuterated polystyrene (C8D8, DPS) foil with an ASE (amplified spontaneous emission) pedestal is investigated by means of radiation hydrodynamic simulations in the interaction with an ultra-short intense laser. The effect of ASE-driven shock propagation on the foil deformation is presented for various foil thicknesses and intensities of the ASE. As the intensity of the ASE pulse is increased, the rear side of the foil begins to expand due to shock-induced heating. The rear side of the foil maintains its initial sharp density gradient for thicknesses larger than the shock propagation length during the ASE pulse or at a very thin thickness, which results in a catch up of the shock by the leading edge at the ablation front. The behavior in this very thin DPS foil is quite different from that the rear side is expanded by a radiative heating in a very thin Al foil.

• 出版日期2009-8