Leo, K.K.LeoBolivar, P.H.P.H.BolivarBrüggemann, F.F.BrüggemannSchwedler, R.R.SchwedlerKöhler, KlausKlausKöhler2022-03-032022-03-031992https://publica.fraunhofer.de/handle/publica/18176610.1016/0038-1098(92)90798-EWe report unambiguous experimental evidence for electron Bloch oscillations: The transient four-wave mixing signal of a biased semiconductor superlattice shows a periodic modulation with a time constant expected from Bloch oscillation theory. The oscillation frequency can be tuned over 400% with the applied electric field. The electron performs up to four oscillation cycles before the coherence is lost.enheterostructureHeterostrukturIII-V HalbleiterIII-V semiconductorstime resolved photoluminescencezeitaufgelöste Photolumineszenz621667530journal article