Near-field magneto-optical spectroscopy of single self-assembled InAs quantum dots
- 21 July 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (4), 517-519
- https://doi.org/10.1063/1.121919
Abstract
We report observations of Zeeman spin splitting in photoluminescence from single InAs/GaAs self-assembled quantum dots (SAQDs) fabricated by Stranski–Krastanow growth. A low-temperature near-field optical microscope incorporating a superconducting magnet enabled us to resolve the luminescence from individual SAQDs. We have measured Zeeman split components from single SAQDs in magnetic fields up to 10 T. Circularly-polarized photoluminescence resolved carriers of different spin polarity. Dependence of the splitting on the QD structures was also investigated.Keywords
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