FEMTOSECOND INFRARED AND VISIBLE SPECTROSCOPY OF EXCESS ELECTRON IN NEAT DIMETHYLSULFIDE Y. GAUDUEL, S. POMMERET, A. ANTONETTI, J. BELLONI et J.L. MARIGNIER J. Phys. IV France, 01 C5 (1991) C5-161-C5-166 DOI: 10.1051/jp4:1991520