Modification of Spontaneous Emission of a Single Quantum Dot

Modification of spontaneous emission of a single InAs quantum dot is demonstrated using an epitaxial distributed Bragg reflector microcavity that has been post-growth processed into microposts. The micropost structure isolates single quantum dots within the microcavity resonance, and creates a three-dimensionally (3D) confined photonic cavity. Discrete mode structure from the 3D cavity is observed, as well as the coupling of a single quantum dot to one of these modes in the weak coupling cavity QED regime.