Keck, Ingo and Schmult, Stefan and Wegscheider, Werner and Rother, Martin and Mayer, Andreas P. (2003) Quantum wire intersubband emitter. Physical Review B 67 (12), p. 125312.
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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_As heterostructure produced by the cleaved-edge overgrowth method. For a realistic system of this type, the relevant rates of radiative transitions and of nonradiative transitions mediated by longitudinal optical phonons have been calculated and have been compared with corresponding data for quantum cascade emitters based on layered structures.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider|
|Projects:||Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 20:59|