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Abstract: We present experimental investigations on the non-resonant dot-cavitycoupling of a single quantum dot inside a micro-pillar where the dot has beenresonantly excited in the s-shell, thereby avoiding the generation ofadditional charges in the QD and its surrounding. As a direct proof of the puresingle dot-cavity system, strong photon anti-bunching is consistently observedin the autocorrelation functions of the QD and the mode emission, as well as inthe cross-correlation function between the dot and mode signals. Strong Stokesand anti-Stokes-like emission is observed for energetic QD-mode detunings of upto ~100 times the QD linewidth. Furthermore, we demonstrate that non-resonantdot-cavity coupling can be utilized to directly monitor and study relevant QDs-shell properties like fine-structure splittings, emission saturation andpower broadening, as well as photon statistics with negligible backgroundcontributions. Our results open a new perspective on the understanding andimplementation of dot-cavity systems for single-photon sources, single andmultiple quantum dot lasers, semiconductor cavity quantum electrodynamics, andtheir implementation, e.g. in quantum information technology.



Autor: S. Ates, S. M. Ulrich, A. Ulhaq, S. Reitzenstein, A. Loeffler, S. Hoeffling, A. Forchel, P. Michler

Fuente: https://arxiv.org/



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