  The coupling of CdTe/ZnTe quantum dot (QD) emission to micropillar cavity
eigenmodes in the weak coupling regime is demonstrated. We analyze
photoluminescence spectra of QDs embedded in monolithic micropillar cavities
based on Bragg mirrors which contain MgSe/ZnTe/MgTe superlattices as low-index
material. The pillar emission shows pronounced cavity eigenmodes and their
spectral shape is in good agreement with simulations. QD emission in resonance
with the cavity mode is shown to be efficiently guided toward the detector and
an experimental Purcell enhancement by a factor of 5.7 is determined,
confirming theoretical expectations.
