Differential spectroscopy of GaAs-Ga1-xAlxAs quantum wells : an unambiguous identifica¬tion of light-hole and heavy-hole states.

Henry Mathieu (1) , Pierre Lefebvre (1) , Jacques Allègre (1) , Bernard Gil (1) , A. Regreny (2)

1 GES - Groupe d'étude des semiconducteurs
2 CNET - CNET [Lannion]

We present differential photoluminescence and reflectivity studies of GaAs-Ga1−xAlxAs quantum wells, using both wavelength-modulation and piezomodulation techniques. Our experiments permit unambiguous identification of light- and heavy-hole exciton transitions.

Domaines: Science des matériaux [cond-mat.mtrl-sci]; Optique [physics.optics]; Micro et nanotechnologies/Microélectronique; Optique / photonique

Henry Mathieu, Pierre Lefebvre, Jacques Allègre, Bernard Gil, A. Regreny. Differential spectroscopy of GaAs-Ga1-xAlxAs quantum wells : an unambiguous identifica¬tion of light-hole and heavy-hole states.. Physical Review B: Condensed Matter (1978-1997), 1987, 36 (12), pp.4. ⟨10.1103/PhysRevB.36.6581⟩. ⟨hal-01175558⟩