Abstract
Resonant photoluminescence experiments performed on self-assembled InAs/GaAs quantum dots under strong magnetic field up to 28 T give rise to an accurate determination of the interband magneto-optical transitions. As this technique minimizes the effect of the homogeneous broadening of the transitions due to the size and composition fluctuations of the dots, the experimental spectra display well-defined peaks. A good agreement is found between the experimental data and calculations using an effective mass model including the coupling between the mixed exciton-LO phonon states. Transitions involving excitonic polarons are clearly identified. Moreover, a light-hole to conduction transition is also evidenced in agreement with previous theoretical predictions.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Preisler, V., Grange, T., Ferreira, R. et al. Investigation of interband optical transitions by near-resonant magneto-photoluminescence in InAs/GaAs quantum dots. Eur. Phys. J. B 67, 51–56 (2009). https://doi.org/10.1140/epjb/e2008-00466-4
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DOI: https://doi.org/10.1140/epjb/e2008-00466-4