26ème Congrès Général de la SFP

Time-Resolved Observation of the Solvation Dynamics of a Rydberg Excited Molecule Deposited on an Argon Cluster

Non programmé

10m

Centre des Congrès de la Villette (Cité des sciences et de l'Industrie, Paris)

Poster MC13 Effets d’environnement et de solvatation sur les processus moléculaires Session Poster 1: MC3, MC5, MC6, MC11, MC13, MC15, MC16, MC18, MC19, MC25, REDP, posters hors MC

Orateur

Lionel POISSON (ISMO)

Description

The real-time dynamics of DABCO-argon clusters is investigated in a femtosecond pump-probe experiment where the pump excites DABCO to the S${}_1$ state within the argon cluster. The probe operates by photoionization and documents the energy and angular distributions of the resulting photoelectrons. The dynamics is followed up to 500 ps. A multiscale dynamics is observed. It includes a short time dynamics where the molecule jump between two solvation sites (timescale 0.27 ps) followed by the relaxation of the solvation cage excess vibrational energy (timescale 14 ps) and then by that of DABCO (timescale $>$150 ps).