  Composition analysis of LiF-C thin film for neutral and ionic contributions
in Front Ablation (FA) and Back Ablation (BA) geometries in vacuum and
2\times10-1 mbar argon has been done. Temporal evolution of ionic to neutral
ratio and neutral abundance for both the geometries has been estimated. For
neutral abundance, two approaches viz Atomic Data and Analysis Structure (ADAS)
analysis as well as integrated intensity ratio of Li I 670.1 nm and Li I 610.3
nm lines assuming LTE conditions are explored. The present attempt will be
interesting from the view point of understanding the evolution of plasma
composition in various geometries/configurations of laser ablation which has
important implications in various applications e.g. pulsed laser deposition and
laser cleaning.
