Service de Chimie Quantique et Photophysique
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Experimental Spectroscopy Atmospheric

Thibaut Launoy


  • BA in chemistry, ULB (2009-2012)
  • MA in chemistry, ULB (2012-2014)
  • Master thesis: Etude ab initio de la dissociation en paire ionique de l'agrégat moléculaire C2+
  • PhD student in Sciences, ULB, FRIA grant, (2014-present)

PhD project

Reactive dynamics of molecular Rydberg states.
Molecular Rydberg states, and in particular heavy Rydberg states, appear in reactions such as ion pair mutual neutralization. These reactions appear in various astrophysical environments and in the study of plasma made in laboratory. In spite of their fundamental importance, theoretical and experimental studies of these reactions are still a difficult problem to deal with as evidenced by the lack of precise data about them. In this project, we suggest to study the dynamics of molecular Rydberg states in ion pair collisions between H- and some atomic cations both from a theoretical and experimental point of view and to get a qualitative and quantitative description of them.
In order to do so, we will make various ab initio calculations and will handle the dynamics of these systems within the Service de Chimie Quantique et Photophysique of the ULB. We will use different methodologies (such as semi-classic approaches, wave packet propagation or R matrix method) for treating these Rydberg states. We will also use a merged beam setup to make experimental measurement on these systems within the unit of Nanoscopic Physics of Université catholique de Louvain to obtain experimental cross section of the various studied collisions. We shall also collaborate with the Institut des Sciences Moléculaires d'Orsay of Université Paris-Sud which makes measurements of the fragmentation of carbon clusters into ion pairs in which heavy Rydberg states also appear.


See here.

Université Libre de Bruxelles – Faculté des Sciences