Laser-driven reverberation shock experiments on diamond

The equation-of-state and phase relation in extreme conditions is essential information in planetary science and inertial confinement fusion. Numerous experimental and computational studies have been conducted on diamonds in a wide range of pressures and temperatures so far. However, the off-Hugoniot states of diamonds are still not yet understood experimentally. In this study, we conducted laser-driven reflected/reverberated shock experiments to obtain well-defined, low-entropy compression state data. By using platinum foil as a reshock anvil, diamond samples were re-shocked to 500-900 GPa off-Hugoniot states from 350-600 GPa on-Hugoniot states.