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arXiv · 1107.2486

Strain-tuning of quantum dot optical transitions via laser-induced surface defects

Cristian Bonato·Evert van Nieuwenburg·Jan Gudat·Susanna Thon·Hyochul Kim·Martin P. van Exter·Dirk Bouwmeester
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Abstract

We discuss the fine-tuning of the optical properties of self-assembled quantum dots by the strain perturbation introduced by laser-induced surface defects. We show experimentally that the quantum dot transition red-shifts, independently of the actual position of the defect, and that such frequency shift is about a factor five larger than the corresponding shift of a micropillar cavity mode resonance. We present a simple model that accounts for these experimental findings.

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Cristian Bonato, Evert van Nieuwenburg, Jan Gudat, Susanna Thon, Hyochul Kim, Martin P. van Exter, Dirk Bouwmeester. 2011-07-13. Strain-tuning of quantum dot optical transitions via laser-induced surface defects. https://doi.org/10.1103/physrevb.84.075306

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