| Affiliation: | (1) Università di Firenze, Firenze, Italy;(2) Instituto Nazionale di Ottica, Firenze, Italy;(3) Istituto di Scienze Fisiche dell'Università di Milano, Italy;(4) Physics Department, Drexel University, 19104 Philadelphia, PA, USA;(5) CISE Laboratories, I-20100 Milano, Italy;(6) Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, 02139 Cambridge, MA, USA;(7) University of Florence and Istituto Nazionale d'Ottica, Florence, Italy;(8) Zentralinstitut für Optik und Spektroskopie der Akademie der Wissenschaften der DDR, Rudower Chaussee 6, DDR-1199 Berlin, German Democratic Republic;(9) Department of Physics, Bryn Mawr College, 19010 Bryn Mawr, PA, USA;(10) Department of Physics, Heriot-Watt University, Riccarton, Edinburgh, UK;(11) Department of Physics, Kyoto University, Kuoto, Japan;(12) The School of Allied Health Sciences, Yamaguchi University, Kogushi, Ube, Japan;(13) Institute of Physics, Byelorussian Academy of Sciences, Minsk, USSR;(14) Institute of Fine Mechanics and Optics, Leningrad, USSR |
