https://doi.org/10.1007/s100530170219
Laser excitation and ionic motion in small clusters
1
Laboratoire de Physique Quantique, Université Paul Sabatier,
118 route de Narbonne, 31062 Toulouse Cedex, France
2
Institut für Theoretische Physik, Universität Erlangen,
Staudstrasse 7, 91054 Erlangen, Germany
Corresponding author: a suraud@irsamc2.ups-tlse.fr
Received:
13
October
2000
Revised:
18
December
2000
Published online: 15 May 2001
We discuss the properties of small metal and hydrogen clusters under
irradiation by intense lasers. We use a fully non adiabatic model
of coupled electrons and ions, based on density functional theory.
We demonstrate the quality of such an approach in comparison to
experimental data on atomic and molecular properties as well as to
the optical response of small sodium clusters. We next address the
response of small clusters to various lasers allowing to scan a broad span
of dynamical regimes from the linear to the non linear domain.
We finally discuss the impact of ionic motion in the case of
hydrogen clusters irradiated by short laser pulses in the
10
W cm-2 intensity range.
PACS: 36.40.-c – Atomic and molecular clusters / 36.40.Cg – Electronic and magnetic properties of clusters / 36.40.Vz – Optical properties of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001
