Particulates reduction in laser-ablated YBa2Cu3O7−δ thin films by laser-induced plume heating

Abstract
Experimental demonstration of reduction in the number and size of particulates formed in the laser ablation deposition of YBa2Cu3O7δ thin films is obtained by the use of a second laser which further heats and fragments the blowoff material in the plume formed by the first laser. This results in a smoother film with higher critical current density as compared to that obtained without the second laser irradiation of the plume.