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Terahertz radiation from coherent electron oscillations in a double-quantum-well structure.

Terahertz Strahlung von kohärenten Elektronenoszillationen in einer Doppelquantentopf Struktur

Martin, J.-L.; Migus, A.; Mourou, G.A.; Zewail, A.H.:
Springer Series in Chemical Physics. Vol.55. Ultrafast Phenomena VIII
Berlin: Springer, 1993 (Springer Series in Chemical Physics 55)
S.484-486 : Abb.,Lit.
Aufsatz in Buch
Fraunhofer IAF ()
Quantentopf; quantum wells; time resolved photoluminescence; zeitaufgelöste Photolumineszenz

We detect the submillimeter-wave radiation from excitonic wave packets that, after excitation by an ultrashort laser pulse, oscillate coherently between the two wells of a semiconductor coupled-quantum-well structure. In addition, we identify a terahertz signal originating from the instantaneous polarization of photo-excited excitions in an electrical bias field.