Koch, M.M.KochFeldmann, J.J.FeldmannPlessen, G. vonG. vonPlessenGöbel, E.O.E.O.GöbelThomas, P.P.ThomasKöhler, KlausKlausKöhler2022-03-032022-03-031992https://publica.fraunhofer.de/handle/publica/18190410.1103/PhysRevLett.69.3631We demonstrate that transient four-wave mixing with time-resolved detection of the coherent nonlinear signal allows unambiguous experimental distinction between quantum beats and beats due to interfering polarizations of independent quantum-mechanical systems. The experimental demonstration is performed employing especially designed semiconductor quantum- well structures.enheterostructureHeterostrukturIII-V HalbleiterIII-V semiconductorstime resolved photoluminescencezeitaufgelöste Photolumineszenz621667530journal article