Session 1 : Monday 1 September ( 18 : 00 - 19 : 30 , Queen ’ s Tower Room ) General P . 53 A

Quantum dots (QDs) embedded in photonic nanowires have proved promising as sources of single photons [1–3] for applications in quantum information protocols. Investigations have shown that the brightness of these light sources depend on the diameter and taper of the nanowire as well as the axial and lateral position of the quantum dot dipole within it. In addition to efficient collection of the spontaneous emission into a single optical mode, a crucial requirement for scalable quantum dot devices is spectral tunability, e.g., to facilitate the generation of indistinguishable photons from remote QDs. Such spectral tunability has not been previously demonstrated for nanowire QDs.