Institution: | (1) Institute of Spectroscopy, Russian Academy of Sciences, 142092 Troitsk, Moscow Region, Russia;(2) Huygens Laboratory, Leyden University, 2300 RA Leyden, The Netherlands;(3) FOM-Institute for Plasma Physics Rijnhuizen, P. O. Box 1207, 3430 BE Nieuwegein, The Netherlands;(4) Institute of General Physics, Russian Academy of Sciences, 117942 Moscow, Russia |