Controlled light-matter coupling for a single quantum dot embedded in a   pillar microcavity using far-field optical lithography
  Using far field optical lithography, a single quantum dot is positioned within a pillar microcavity with a 50 nm accuracy. The lithography is performed in-situ at 10 K while measuring the quantum dot emission. Deterministic spectral and spatial matching of the cavity-dot system is achieved in a single step process and evidenced by the observation of strong Purcell effect. Deterministic coupling of two quantum dots to the same optical mode is achieved, a milestone for quantum computing. 
A. Dousse, L. Lanco, J. Suffczynski, E. Semenova, A. Miard, A.   Lemaitre, I. Sagnes, C. Roblin, J. Bloch and P. Senellart