The quenching of the ε phase of iron, which has not been observed under a conventional shock compression, was attained using a femtosecond laser. The crystalline structure in a recovered iron sample was determined using an electron backscatter diffraction pattern system. The femtosecond laser driven shock may have the potential to quench high-pressure phases of other materials.Sano T., Mori H., Ohmura E., et al., Appl. Phys. Lett. 83(17), 3498-3500 (2003) https://doi.org/10.1063/1.162393