Cavity QED in Quantum Dot - Micropillar Cavity Systems

Abstract

In this contribution we review our recent work on cavity quantum electrodynamics experiments (cQED) with single quantum dots in high quality micropillar cavities. After a short introduction to the theoretical background of cQED with single two level emitters, important aspects in the growth and patterning of quantum dot–micropillar cavities will be addressed in the second part of this review. In particular, the optimization of both the quantum dot and cavity characteristics will be discussed. Differences between weak and strong coupling are illustrated experimentally in the framework of cQED. Furthermore, the demonstration of the quantum nature in a strongly coupled quantum dot–micropillar system as well as a coherent photonic coupling of QDs mediated by the strong light field in high-Q micropillar cavities will be addressed.