Vibrational relaxation of photoexcited Na3F
Résumé
We have investigated the vibrational relaxation of Na3F by time-resolved photoionization at the threshold. Among the two isomers of Na3F, we have studied the excited electronic states of the C-2v one. The pump-probe signal clearly shows damped oscillations, the period of which is fitted to 390 +/- 8 fs, close to twice the previously measured bending mode of Na2F,[1] while the relaxation time is 1275 +/- 50 fs.