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Proceedings Paper

Ultrafast dynamics of wavepackets in GaAs/AlGaAs heterostructures
Author(s): Karl Leo
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Paper Abstract

Recent time-domain observations of the dynamics of wavepackets in semiconductor heterostructures are reviewed. The most simple example are coherent tunneling oscillations of a wavepacket in a coupled double quantum well. The composition and the oscillation frequency of the wavepacket are tunable with an electric field. Coherent microwave radiated by the oscillating carriers can be observed. Wavepacket dynamics in biased superlattices are identified as Bloch oscillations of the electrons.

Paper Details

Date Published: 3 September 1992
PDF: 9 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.142551
Show Author Affiliations
Karl Leo, AT&T Bell Labs. and Rheinisch-Westfaelische Technische Hochschule (Germany)


Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV

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