Intraband spectroscopy of self-organized InAs/InAlAs nanostructures grown on InP(001)

InAs nanostructures on InAlAs/InP(0 0 1) have been fabricated using Stranski-Krastanov growth mode. Depending on growth conditions, a full coverage of the InAlAs surface by either InAs strings of elongated dots or isolated dots can be achieved. Giant intraband absorptions are observed at mid-infrare...

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Bibliographic Details
Published inPhysica. E, Low-dimensional systems & nanostructures Vol. 17
Main Authors Fossard, F., Helman, A., H. Julien, F., Gendry, M., Brault, J., Peronne, Emmanuel, Alexandrou, Antigoni, Schacham, S.E., Finkman, E.
Format Journal Article
LanguageEnglish
Published Elsevier 01.04.2003
Subjects
Quantum wires
Quantum dots
Intraband transitions
III-V semiconductors
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Summary:InAs nanostructures on InAlAs/InP(0 0 1) have been fabricated using Stranski-Krastanov growth mode. Depending on growth conditions, a full coverage of the InAlAs surface by either InAs strings of elongated dots or isolated dots can be achieved. Giant intraband absorptions are observed at mid-infrared wavelengths in both nanostructures. The intraband resonances are strongly polarized in the layer plane as a consequence of the quantum confinement along either [1 1 0] and [1 −1 0] directions.
ISSN:1386-9477
DOI:10.1016/S1386-9477(02)00779-8