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Polarization-resolved optical absorption in single V-groove quantum wires
Ecole Polytechnique Fdrale de Lausanne (EPFL), Laboratory of Physics of Nanostructures, CH-1015 Lausanne, Switzerland.
Ecole Polytechnique Fdrale de Lausanne (EPFL), Laboratory of Physics of Nanostructures, CH-1015 Lausanne, Switzerland.
Ecole Polytechnique Fdrale de Lausanne (EPFL), Laboratory of Physics of Nanostructures, CH-1015 Lausanne, Switzerland.
Ecole Polytechnique Fdrale de Lausanne (EPFL), Laboratory of Physics of Nanostructures, CH-1015 Lausanne, Switzerland.
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2006 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 89, no 19, 191111- p.Article in journal (Refereed) Published
Abstract [en]

Optical transitions associated with all three linear polarization directions were investigated in single GaAs V-groove quantum wires of different wire thicknesses. This was accomplished by combining absorption measurements in V-groove waveguide geometry with surface-excited photoluminescence excitation spectroscopy. The observed transitions were identified with the aid of model calculations. It is shown that excitonic intersubband coupling should be accounted for in order to explain the optical transitions associated with confined light-hole-like states. The results are relevant for the design of efficient quantum wire waveguide modulators and lasers. © 2006 American Institute of

Physics.

Place, publisher, year, edition, pages
2006. Vol. 89, no 19, 191111- p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-26507DOI: 10.1063/1.2386093OAI: oai:DiVA.org:uu-26507DiVA: diva2:54281
Available from: 2007-02-19 Created: 2007-02-19 Last updated: 2016-07-12

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Leifer, Klaus

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