Patent 11618953 was granted and assigned to Institut National De La Recherche Scientifique (Inrs) on April, 2023 by the United States Patent and Trademark Office.
A system for laser-driven propulsion, system comprising a laser source and a target comprising an accelerating part and a projectile part, the accelerating part comprising a metal layer and a porous layer pressed against the metal layer; wherein the laser source is selected to emit pulse beams directed to the metal layer at a fluence below the plasma ablation threshold of the material of the metal layer.