Near-field scanning optical spectroscopy of a novel electronically coupled quantum wire-dot structure

Summary form only given. We report on the first low temperature near-field luminescence investigation of a novel coupled wire-dot structure, allowing the assignment of different optical transition energies to different spatial areas of the sample and demonstrating carrier transport along the QWR into the dot. The schematic top view of the structure is shown together with an overview far-field photoluminescence spectrum taken near the corner of two inclined sidewalls.