https://doi.org/10.1007/s100530050129
Geometrical and quantal fragmentation of optical response in Na182+
1
Laboratoire de Physique Quantique, Université Paul Sabatier,
118 Route de Narbonne, 31062 Toulouse Cedex, France
2
Institut Universitaire de France
3
Institut für Theoretische Physik II,
Universität Erlangen-Nürnberg,
Staudtstr. 7, 91058 Erlangen, Germany
Corresponding author: a adomps@irsamc2.ups-tlse.fr
Received:
6
April
1998
Accepted:
24
April
1998
Published online: 15 June 1998
By comparing quantal and semi-classical calculations of optical
response, we work out the part of the splitting of the plasmon spectra
which is
exclusively due to geometrical effects. We apply the analysis to the
test case 
which exhibits an interesting
geometry with strong prolate quadrupole deformation and a pronounced
asymmetry in addition. We find a new type of resonance splitting which
is due to geometrical effects but goes beyond the simple and well known
deformation splitting.
PACS: 36.40.Vz – Optical properties of clusters / 36.40.Gk – Plasma and collective effects in clusters / 36.40.Mr – Spectroscopy and geometrical structure of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
