K Andrae et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 4203 doi:10.1088/0953-4075/35/20/307
K Andrae1, P-G Reinhard1 and E Suraud2
Show affiliationsWe investigate pump and probe dynamics in simple metal clusters of medium size. Test cases are Na9+ and Na41+. The initial pulse ionizes the cluster and excites ionic motion by a sudden increase of Coulomb pressure. The subsequent ionic breathing motion can be directly mapped by the probe pulses if the analysing frequency stays sufficiently below the plasmon resonance peak at all times. Pump and probe experiments could thus provide direct access to ionic dynamics in electronically excited metal clusters, in the spirit of pump and probe experiments on small molecules.
32.80.Xx Level crossing and optical pumping
36.40.Mr Spectroscopy and geometrical structure of clusters
36.40.Jn Reactivity of clusters
36.40.Gk Plasma and collective effects in clusters
33.15.Mt Rotation, vibration, and vibration-rotation constants
Issue 20 (28 October 2002)
Received 9 July 2002, in final form 2 September 2002
Published 1 October 2002
K Andrae et al 2002 J. Phys. B: At. Mol. Opt. Phys. 35 4203
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