Supplementary Figure 1 Schematic layer layout of the two dimensional optical
cavity. The vertical optical confinement is realized by epitaxially grown distributed
Bragg reflectors. The active part consists of single wavelength thick GaAs cavity
layer with InGaAs quantum dots in the centre acting as atomic-like emitters. In order
to obtain three dimensional optical confinement the layer structure is patterned by
lithography and etching to create cylindrical pillars with various lateral dimensions.
Supplementary Figure 2 Temperature dependence of PL spectra for a 1.5 m
microcavity (Q = 7300) showing the tuning of a single QD exciton through resonance
with the cavity mode in the weak coupling regime. In contrast to the strong coupling
case (see Fig. 4) a crossing of the quantum dot exciton (X) and microcavity photon
mode (C) is observed.