The strong coupling between coherent and incoherent ultrafast phenomena in the electro-optical response of semiconductor nanostructures is discussed theoretically within a density matrix formalism. In particular, the problem of scattering-induced damping of Bloch oscillations in superlattices is reviewed. Moreover, a generalization to ‘open systems’ of the conventional semiconductor Bloch equations is discussed. The presence of spatial boundary conditions manifests itself through self-energy corrections and additional source terms in the kinetic equations. As an example, some simulated experiments of quantum transport phenomena through double-barrier structures are reviewed.

Ultrafast carrier dynamics in semiconductor nanostructures: interplay between coherence and relaxation / Rossi, Fausto. - In: SUPERLATTICES AND MICROSTRUCTURES. - ISSN 0749-6036. - STAMPA. - 26:2(1999), pp. 129-140. [10.1006/spmi.1999.0766]

Ultrafast carrier dynamics in semiconductor nanostructures: interplay between coherence and relaxation

ROSSI, FAUSTO
1999

Abstract

The strong coupling between coherent and incoherent ultrafast phenomena in the electro-optical response of semiconductor nanostructures is discussed theoretically within a density matrix formalism. In particular, the problem of scattering-induced damping of Bloch oscillations in superlattices is reviewed. Moreover, a generalization to ‘open systems’ of the conventional semiconductor Bloch equations is discussed. The presence of spatial boundary conditions manifests itself through self-energy corrections and additional source terms in the kinetic equations. As an example, some simulated experiments of quantum transport phenomena through double-barrier structures are reviewed.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1405214
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