Paper 14093-70
Paper 14093-70
Femtosecond laser-induced breakdown spectroscopy for film analysis of Cu-coated polymer textiles
16 April 2026 • 14:15 - 14:30 CEST | Curie A (Niveau/Level 1)
Abstract
Laser-induced breakdown spectroscopy (LIBS) with femtosecond pulses enables both elemental and molecular detection, allowing characterization of non-metallic materials with minimal thermal damage. We implemented fs-LIBS to analyze copper-coated Lyocell textiles with micrometer spatial selectivity. Depth-resolved single-shot spectra revealed a rapid transition from Cu emission to CN and C-C bands, enabling in-situ identification of the coating–substrate interface. Uniformly coated regions showed consistent transitions, whereas heterogeneous areas indicated variations in coating thickness and oxide structure. Results agreed with SEM/EDX (~20 µm coating). Fs-LIBS also detected trace deposition residues and oxide layers, offering a minimally destructive tool for mapping microscale coating uniformity.
Presenter
Omar Elsheikh
Universität Kassel (Germany)
I am currently a PhD candidate at Universität Kassel, working within the research group Extremes Licht für Werkstoffstrukturen (Extreme Light for Material Structures).
My research focuses on the use of the Laser-Induced Breakdown Spectroscopy (LIBS) technique. Specifically, on using LIBS to characterize and classify materials, in particular biological tissue.