Abstract
Single and multi-layered quantum wire structures have been prepared starting from modulation doped AlGaAs/GaAs heterostructures and multi-quantum well systems. The energy spectrum of these one-dimensional electronic systems (1DES) can be characterized by do magnetotransport measurements. Quantum wires with 400 to 150nm wide electron channels exhibit typical energy separations of 1 to 3meV for the 1D subbands. The far infrared (FIR) response of these systems is strongly governed by collective effects, which gives the FIR resonances the character of local plasmon modes. In the multi-layered quantum wire structures optical and acoustical type of layer-coupled plasmon modes are observed.KeywordsQuantum WirePlasmon ModeLocal PlasmonPlasmon DispersionHolographic LithographyThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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