Thèses

Vendredi 23 Juillet 2021 à 14h00.

Clusters and Molecules in Laser Generated Plasmas: Kinetics and Thermodynamics

''Laser generated plasma is a complex and interesting system. The deposition of the pulse laser energy leads to a brutal phase transition and the formation of a plasma. This plasma is composed of molecules, atoms, ions, and electrons reacting together and with the environment. Such plasmas are used for measuring the composition of a target (LIBS), for producing clusters and nanoparticles (LAL), for material deposition, etc. Understanding the kinetics and the thermodynamics of the plasma is essential in order to better understand the composition of the plasma, its temperature and the nucleation process of clusters and nanoparticles. This work investigates several aspects of this issue, from a general nucleation model able to describe the growth of particles in the plasma, to the determination of thermodynamic quantities such as the pressure from the observation of the generated shock wave and the temperature from diatomic spectroscopy.

Directeur de thèse :
David Amans

Membres du jury :
De Giacomo Alessandro,
Hermann Jörg,
Mikikian Maxime,
Pillonnet Anne,
Rond Cathy,
Amans David

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