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Femtosecond transient-grating experiments in quantum wells


Harris, C.B.; Ippen, E.P.; Mourou, G.A.; Zewail, A.H.:
Ultrafast Phenomena VII. Proceedings of the 7th International Conference
Berlin: Springer, 1990 (Springer Series in Chemical Physics 53)
ISBN: 3-540-53049-5
ISBN: 0-387-53049-5
pp.250-252 : Abb.,Lit.
Topical Meeting on Ultrafast Phenomena <7, 1990, Monterey/Calif.>
Conference Paper
Fraunhofer IAF ()
heterostructure; Heterostruktur; III-V Halbleiter; III-V semiconductors; Quanten-Topf; quantum wells; timeresolved photoluminescence; zeitaufgelöste Photolumineszenz

Using degenerate four-wave mixing (DFWM) with subpicosecond timeresolution, we demonstrate the following phenomena: (I) a novel coherent interaction of excitonic polarizations and (II) quantum beats of excitons in quantum wells due to interference of light-hole (lh) and heavy-hole (hh) excitons or hh excitons of different confinement.