This volume of NATO Science Series presents the Proceedings of the NATO
Advances Research Workshop "Optical Properties of 2D systems with
interacting electrons" which was held at the Educational Centerofthe
Ioffe Physico-Technical Institute in the period of June 13-16, 2002.
More than 40 scientists from 14 countries participated and gave 24
lectures and 16 poster presentations. The main goal of theWorkshop was
to bring togetherleading scientists working in the field of optical
properties of correlated electron systems in semiconductor
nanostructures and to organize a vital and informal discussions of
newest results in the field. The location and the format of the Workshop
provided an atmosphere of friendly and fruitful communications. It is
important to note that the Workshop continued a series of meetings con-
cerning the same topic: Warsaw 1999, Wurzburg 2000 (NATO ARW), and
Berlin 2001. The subject agenda of the ARW was focused on the following
topics: Evolution of optical spectra from the excitonic peaks to the
Fermi-edge singularity Negatively and positively charged excitons
Reconstruction ofone-particle and collective excitation spectra with
increase of the electron density (combined exciton-cyclotron resonance
and shake-up processes) Effect of spatial inhomogeneity on the carrier
interaction in nanostructures Spin-sensitive interaction and spin-spin
interaction in confined systems Many-particle effects in semimagnetic
semiconductor heterostructures.