Influence of oxygen pressure on the characteristics of the KrF-laser-induced plasma plume created above an YBaCuO superconducting target

Abstract

The laser-induced plasma plume created above an YBaCuO superconducting target by a KrF laser beam (248 nm) is investigated by time-resolved spectroscopy under an oxygen atmosphere. The influence of the oxygen partial pressure on the ejection velocities of the ablated species and on the relaxation of atomic and molecular excited species is particularly studied.