Valence band structure of ordered GaInP determined by polarization-dependent electroabsorption measurements

Ordered GaInP shows a strong polarization anisotropy of the Franz–Keldysh absorption. Polarization-dependent electroabsorption measurements provide a powerful tool to obtain information about the valence band structure of ordered material. The measured polarization shift of the Franz–Keldysh spectra...

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Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 1998-07, Vol.2 (1), p.599-602
Main Authors: Kiesel, P, Kippenberg, T, Greger, E, Moser, M, Hilburger, U, Krauss, J, Schmiedel, G, Döhler, G.H
Format: Article
Language:English
Subjects:
Electroabsorption
Ordered GaInP
Ordering
Valence band splitting
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Summary:Ordered GaInP shows a strong polarization anisotropy of the Franz–Keldysh absorption. Polarization-dependent electroabsorption measurements provide a powerful tool to obtain information about the valence band structure of ordered material. The measured polarization shift of the Franz–Keldysh spectra depends on the ordering parameter but is always smaller than the valence band splitting. By using a simple theory, one can extract the valence band splitting from the Franz–Keldysh data. In addition, the measured spectra allow a precise determination of the split-off energy.
ISSN:1386-9477
1873-1759
DOI:10.1016/S1386-9477(98)00122-2