Study of laser plasma emission from doped targets

In this work, the characteristics of laser plasma produced by ablation of pure and doped targets are studied. An excimer KrF laser was used to induce ablation. Pure Cu, Cu with 2% of Be, and Cu with 4% of Sn targets were ablated to evaluate the influence of these admixture on the emission of Cu ions. It was observed that the emission of ions exhibited a higher gain from the Cu/Be and Cu/Sn targets with respect to the pure Cu one. We also performed studied of ion velocity and charge angular distribution. (C) 2012 American Institute of Physics. [fittp://dx.doi.org/10.1063/1.3673014]