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arXiv · 1006.0347

Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots

Thomas Belhadj·Thierry Amand·Alejandro Kunold·Claire-Marie Simon·T. Kuroda·M. Abbarchi·T. Mano·K. Sakoda·Sergej Kunz·Xavier Marie·Bernhard Urbaszek
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Abstract

We report strong heavy hole-light mixing in GaAs quantum dots grown by droplet epitaxy. Using the neutral and charged exciton emission as a monitor we observe the direct consequence of quantum dot symmetry reduction in this strain free system. By fitting the polar diagram of the emission with simple analytical expressions obtained from k$\cdot$p theory we are able to extract the mixing that arises from the heavy-light hole coupling due to the geometrical asymmetry of the quantum dot.

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Thomas Belhadj, Thierry Amand, Alejandro Kunold, Claire-Marie Simon, T. Kuroda, M. Abbarchi, T. Mano, K. Sakoda, Sergej Kunz, Xavier Marie, Bernhard Urbaszek. 2010-06-02. Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots. https://doi.org/10.1063/1.3473824

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