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Quantum wire intersubband emitter

Keck, Ingo ; Schmult, Stefan ; Wegscheider, Werner ; Rother, Martin ; Mayer, Andreas P.
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Date of publication of this fulltext: 05 Aug 2009 13:30


A quantum cascade emitter structure is suggested that is based on electronic transitions in an artificial band structure of coupled quantum wires in contrast to the conventional quantum layer systems. The electron transport is normal to the wires in a GaAs/Al_xGa_{1–x}As heterostructure produced by the cleaved-edge overgrowth method. For a realistic system of this type, the relevant ...


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