Production of copper nanoparticles in the process of target ablation by radiation Cr3+:BeAl2O4 laserAleksandr Shepelev, Aleksandr Antipov, Alexey Putilov, Sergey Solokhin and Tatiyana LezovaE3S Web of Conf., 458 (2023) 02032DOI: https://doi.org/10.1051/e3sconf/202345802032