Article Dans Une Revue Physical Review Letters Année : 2012

Optically-gated resonant emission in single quantum dots

Résumé

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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hal-00659994 , version 1 (01-02-2012)

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Hai-Son Nguyen, Gregory Sallen, Christophe Voisin, Philippe Roussignol, Carole Diederichs, et al.. Optically-gated resonant emission in single quantum dots. Physical Review Letters, 2012, 108, pp.057401. ⟨10.1103/PhysRevLett.108.057401⟩. ⟨hal-00659994⟩
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