Photoluminescence spectra of CdlnzSa single crystals at 1.8 K under both continuous-wave (CW) and pulsed excitation were obtained. In the latter case, a variable time-window technique was used to observe the time evolution of the spectra between 0 and 100 FS. In contrast to previous studies, four spectral bands were observed under both CW and pulsed, intrinsic or extrinsic excitation. In particular, two bands previously unobserved under extrinsic excitation were detected at 1.35 and 1.68 eV, and have been attributed to donor-acceptor pairs and free-electron to acceptor transitions respectively.On a obtenu des spectres de luminescence a 1,s K sur des monocristaux de CdlnzS, sous excitation en continu ou en impulsions. Dans ce dernier cas, des fenEtres variables en temps ont C t t utilisies, permettant I'observation de I'tvolution des spectres entre 0 et 100 FS apr6s I'excitation. Quatre bandes d'kmission ont Ct C observdes sous toutes conditions d'excitation. Sous excitation extrinseque, deux bandes additionnelles observCes a 1,35 et 1,68 eV sont attributes respectivement a des transitions donneurs-accepteurs et electrons libresaccepteurs.