Title: Effects of tamper materials on laser driven shock and deformation in metal foils with micrometer to millimeter scale features

Tamper materials can be used to increase the pressure generated at the metal ablator-tamper interface. We investigated the effect of various tamper materials--namely Sapphire, Fused Silica and LiF--on both the shock profile and deformation of the metal foil ablators at ~10⁹ W/cm². A variety of lasers with varying pulse lengths and wavelengths are used to examine the effect of laser spot size on the material response. The metal foil ablators have micrometer to millimeter scale features allowing for shock and deformation in two and three dimensions. Hydrodynamic simulations are used to guide and analyze experimental results. Shock profile is determined through pulsed doppler velocimetry (PDV), while deformation is quantified with profilometry.