Cavity quantum electrodynamics with charge-controlled quantum dots coupled to a fiber Fabry-Perot cavity

Abstract

We demonstrate non-perturbative coupling between a single self-assembled InGaAs quantum dot and an external fiber-mirror based microcavity. Our results extend the previous realizations of tunable microcavities while ensuring spatial and spectral overlap between the cavity-mode and the emitter by simultaneously allowing for deterministic charge control of the quantum dots. Using resonant spectroscopy, we show that the coupled quantum dot cavity system is at the onset of strong coupling, with a cooperativity parameter of 2. Our results constitute a milestone towards the realization of a high efficiency solid-state spin-photon interface.

18 pages, 7 figures

References in corpus (4)

• Linear and nonlinear optical spectroscopy of a strongly-coupled microdisk-quantum dot system
• Fiber Fabry-Perot cavity with high finesse
• Controlled light-matter coupling for a single quantum dot embedded in a pillar microcavity using far-field optical lithography
• Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime