Exploring Ion Dynamics in Laser-Produced Plasmas

Abstract

Charged particle dynamics during transient plasma expansion have traditionally been studied within a consistent framework, supporting the advancement of applications like thin film deposition through pulsed laser ablation. However, reported plasma parameters often show inconsistencies, particularly in the relationship between ion mass and oscillation frequencies. Recent insights into charge current temporal traces have highlighted challenges in interpreting modulated probe currents. In this study, we present data on laser-produced plasma (LPP) from Co targets and explore additional phenomena that more accurately describe the behavior of highly energetic, rapidly diffusing LPP.