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Combined 1D-2D intersubband excitations and 1D single-particle spectrum in narrow quantum wires

Biese, G. ; Schüller, Christian ; Kurth, T. ; Heitmann, Detlef ; Grambow, P. ; Eberl, Karl
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Date of publication of this fulltext: 02 Oct 2009 09:09


Abstract

Electronic excitations in AlGaAs-GaAs quantum wires have been investigated by means of resonant inelastic light scattering. Besides a rich spectrum of 1D electronic excitations at low frequencies we fin d at higher frequencies transitions in the regime of the original 2D intersubband excitations. Interestingly, we observe not only the original 2D intersubband excitations but additional modes ωk ...

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