Schmitt-Rink, S.S.Schmitt-RinkMüller, J.F.J.F.MüllerDamen, T.C.T.C.DamenGanser, P.P.GanserGöbel, E.O.E.O.GöbelKöhler, KlausKlausKöhlerLeo, K.K.LeoSchäfer, W.W.SchäferShah, J.J.Shah2022-03-082022-03-081990https://publica.fraunhofer.de/handle/publica/317533Using 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.enheterostructureHeterostrukturIII-V HalbleiterIII-V semiconductorsQuanten-Topfquantum wellstimeresolved photoluminescencezeitaufgelöste Photolumineszenz621667conference paper