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arXiv · 1109.4304

Optically-gated resonant emission in single quantum dots

Hai Son Nguyen·Gregory Sallen·Christophe Voisin·Philippe Roussignol·Carole Diederichs·Guillaume Cassabois
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Abstract

We report on the resonant emission in coherently-driven single semiconductor quantum dots. We demonstrate that an ultra-weak non-resonant laser acts as an optical gate for the quantum dot resonant response. We show that the gate laser suppresses Coulomb blockade at the origin of a resonant emission quenching, and that the optically-gated quantum dots systematically behave as ideal two-level systems in both regimes of coherent and incoherent resonant emission.

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Hai Son Nguyen, Gregory Sallen, Christophe Voisin, Philippe Roussignol, Carole Diederichs, Guillaume Cassabois. 2011-09-20. Optically-gated resonant emission in single quantum dots. https://arxiv.org/abs/1109.4304

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