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

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.

arXiv comment4 pages, 2 figures

References in corpus (4)

• Hole - Nuclear Spin Interaction in Quantum Dots
• Controlling the polarization eigenstate of a quantum dot exciton with light
• Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy
• Optical alignment and polarization conversion of neutral exciton spin in individual InAs/GaAs quantum dots

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