Work

Radiative recombination as a transient spectroscopic fingerprint for sample oxidation using laser-induced XUV spectroscopy (LIXS)

Year: 2025

Type: article

Abstract: The deconvolution of Laser-Induced XUV Spectroscopy (LIXS) recombination signals for d-block transition and heavy metals, in hot and dense plasmas, was studied. Using a self-developed XUV spectrograph, ion stages of nickel (Ni) and gold (Au) under varying electron densities and plasma temperatures were investigated. The results revealed stabilization of specific ion species, with Ni favoring Ne-like configurations and Au exhibiting complex d-f orbital interactions. Supported by non-local thermodynamic equilibrium (NLTE) simulations, this study provides insights into plasma ionization dynamics and the robustness of closed-shell configurations as oxidation state proxies, enhancing LIXS applications in material analysis. • Innovative Deconvolution of LIXS Recombination Signals. • Detailed Plasma Dynamics Insight or LIXS. • Advances in Radiative Recombination Modeling and Fitting. • Potential for use in XUV absorption spectroscopy

Source: Spectrochimica Acta Part B Atomic Spectroscopy

DOI: 10.1016/j.sab.2025.107203

Authors: Sharath Rameshbabu, Davide Bleiner

Institutions: University of Zurich, Swiss Federal Laboratories for Materials Science and Technology

Language: English

Topic: Laser-induced spectroscopy and plasma

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,530

Funders: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Eidgenössische Materialprüfungs- und Forschungsanstalt