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Proceedings Paper

Interaction of Wannier-Stark ladders in GaAs-AlAs superlattices observed by electroreflectance
Author(s): Udo Behn; Holger T. Grahn; Harald Schneider; Klaus H. Ploog
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Paper Abstract

Electroreflectance (ER) spectroscopy has been used to study the influence of an electric field on the optical properties of a strongly coupled GaAs-AlAs superlattice. At certain electric field strengths, anticrossings of the fundamental transitions for heavy- and light-holes are observed, which can be assigned to resonant coupling of the electron wave functions over one, two, and three superlattice periods. The lineshapes of the ER-spectra are discussed for a wide range of temperatures and field strengths.

Paper Details

Date Published: 3 September 1992
PDF: 12 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137620
Show Author Affiliations
Udo Behn, Technische Hochschule Ilmenau (Germany)
Holger T. Grahn, Max-Planck-Institut fuer Festkoerperforschung (Germany)
Harald Schneider, Fraunhofer-Institut fuer Angewandte Festkoerperphysik (Germany)
Klaus H. Ploog, Max-Planck-Institut fuer Festkoerperforschung (Germany)
Technische Hochschule Darmstadt (Germany)


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

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