FEMTOSECOND SPECTRAL HOLE-BURNING IN GaAs/AlGaAs MULTIPLE QUANTUM WELLS J.L. OUDAR, J. DUBARD, F. ALEXANDRE, D. HULIN, A. MIGUS and A. ANTONETTI J. Phys. Colloques, 48 C5 (1987) C5-511-C5-515 DOI: 10.1051/jphyscol:19875109