Ideal radiation source for plasma spectroscopy generated by laser ablation

Jorg Hermann (1) , David Grojo (1) , Emanuel Axente (2) , Christoph Gerhard (3) , Miloš Burger (4) , Valentin Craciun (5)

1 LP3 - Laboratoire Lasers, Plasmas et Procédés photoniques
2 National Institute for Lasers, Plasma, and Radiation Physics - INFLPR (ROMANIA)
3 TH Wildau - Technische Hochschule Wildau
4 University of Belgrade [Belgrade]
5 INFLPR - National Institute for Lasers, Plasma, and Radiation Physics [Magurele-Ilfov]

Laboratory plasmas inherently exhibit temperature and density gradients leading to complex investigations. We show that plasmas generated by laser ablation can constitute a robust exception to this. Supported by emission features not observed with other sources, we achieve plasmas of various compositions which are both uniform and in local thermodynamic equilibrium. These properties characterize an ideal radiation source opening multiple perspectives in plasma spectroscopy. The finding also constitutes a breakthrough in the analytical field as fast analyses of complex materials become possible.

Domaines: Physique des plasmas [physics.plasm-ph]

Jorg Hermann, David Grojo, Emanuel Axente, Christoph Gerhard, Miloš Burger, et al.. Ideal radiation source for plasma spectroscopy generated by laser ablation. Physical Review E , 2017, 96 (5), pp.53210 - 53210. ⟨10.1103/PhysRevE.96.053210⟩. ⟨hal-01655258⟩