Steed, R., Matthews, M., Plumridge, J. et al. (7 more authors) (2008) Saturation of intersubband transitions in p-doped GaAs/AlGaAs quantum wells. Applied Physics Letters, 92 (18).
Abstract
Optical saturation experiments have been performed on hh1-hh2 intersubband transitions in two samples of p-doped GaAs/AlGaAs quantum wells. The transitions had energies of 183 and 160 meV and the measured population relaxation times were 2±1.5 and 0.3±0.1 ps, respectively. Modeling of the quantum wells with a 6×6 k·p method shows that intersubband scattering by LO phonons can account for these relaxation times. The valence bandstructure is typically more complicated than the conduction bandstructure in a quantum well but these measurements show that LO phonons are the dominant intersubband scattering mechanism in both cases.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2008 American Institute of Physics. This is an author produced version of a paper published in Applied Physics Letters. Uploaded in accordance with the publisher's self archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Sherpa Assistant |
Date Deposited: | 25 Jul 2008 14:21 |
Last Modified: | 16 Sep 2016 13:36 |
Published Version: | http://dx.doi.org/10.1063/1.2920706 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.2920706 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:4087 |