EXPERIMENTAL STUDY OF POPULATION INVERSION IN LASER PLASMAS J.L. BOCHER, M. BUSQUET, P. COMBIS, J.P. LE BRETON, M. LOUIS-JACQUET, J.M. MEXMAIN et M. NAUDY J. Phys. Colloques, 47 C6 (1986) C6-253-C6-257 DOI: 10.1051/jphyscol:1986632