Featurization of Ultrafast Expansion and Geometrical Properties of Heterogeneous Colliding Plasmas

¹ Department of Electronics Engineering and Communications, South East Technological University, Carlow, Ireland.
² School of Physics, University College Dublin, Belfield, Dublin, Ireland.

^* Corresponding author: haider.aljuboori@setu.ie

Published online: 18 October 2023

Abstract

Numerous fields of research and industry have undergone revolutionary change because of the unique characteristics of ultrashort laser pulses. Moreover, the ultrafast imaging sensors, such as ICCD technique, can help to understand the ionization features and expansion properties of colliding laser-induced plasma (CLPP) and related stagnation layer (S.L.) geometry. In this work, the effort will be focused on CLPP experiments from two seeds of heterogeneous elements. The research’s goal is to analyse the geometrical development of the colliding plasma, the temporal evolution of plume composition features and its associated characteristics. The expansion velocity and forward propagation range (FPR) of the stagnation layer in a nanosecond scale—both of which have been discovered. The ultrafast imaging results give the sight and explain the possibilities of extant technologies that can help to re-engineer the plasma characteristics for the next generation of lithography applications or new selective physical concepts.