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Coherent coupling dynamics in a quantum dot microdisk laser

D. K. Young·L. Zhang·D. D. Awschalom·E. L. Hu
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Abstract

Luminescence intensity autocorrelation (LIA) is employed to investigate coupling dynamics between (In,Ga)As QDs and a high-Q (~7000) resonator with ultrafast time resolution (150 fs), below and above the lasing threshold at T = 5 K. For QDs resonant and non-resonant with the cavity we observe both a six-fold enhancement and a 0.77 times reduction of the spontaneous emission rate, respectively. In addition, LIA spectroscopy reveals the onset of coherent coupling at the lasing threshold through qualitative changes in the dynamic behavior and a tripling of the resonant QD emission rate.

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D. K. Young, L. Zhang, D. D. Awschalom, E. L. Hu. 2002-06-05. Coherent coupling dynamics in a quantum dot microdisk laser. https://doi.org/10.1103/physrevb.66.081307

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