Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universität Hamburg, Jungiusstr. 11, 20355 Hamburg, Germany; katrin.buth(at)physnet.uni-hamburg.de
Received 26 July 2002, accepted 10 September 2002 by B. Kramer
(1) Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38,
01187 Dresden, Germany;
(2) Research Institute for
Solid State Physics and
Optics, P.O.B. 49, H-1525 Budapest, Hungary; fulde(at)mpipks-dresden.mpg.de
Received 6 November 2002, accepted 12 November 2002 by B. Kramer
Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany; cosima.schuster(at)physik.uni-augsburg.de
Received 11 November 2002, accepted 22 November 2002 by B. Kramer
(1) Department of Physics, Shanghai University, Shanghai 200436, P. R.
China;
(2) State Key Laboratory of Transient Optics Technology,
Xi'an Institute of Optics and Precision Mechanics, Academia Sinica,
Xi'an 710068, P. R. China; c-fli(at)online.sh.cn, xchen(at)mail.shu.edu.cn
Received 24 October 2002, accepted 13 November 2002 by B. Kramer
(1) I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstr.
9, 20355 Hamburg, Germany;
(2) Dipartimento di Fisica, INFM,
Universita di Genova, Via Dodecanesco 33, 16146 Genova, Italy;
mariani(at)physnet.uni-hamburg.de
Received 14 November 2002, accepted 21 November 2002 by U. Eckern