The generation, manipulation, storage, and detection of single photons play a central role in
emerging photonic quantum information technology. Individual photons serve as flying …

We analyze the optical emission of single II-VI quantum dots containing 0 or 1 magnetic
atom (manganese) and a controlled number of carriers (0,±1 electron). The emission of …

The radiative and nonradiative decay rates of InAs quantum dots are measured by
controlling the local density of optical states near an interface. From time-resolved …

We investigate polarization properties of neutral exciton emission in single self-assembled
InAs/GaAs quantum dots. The in-plane anisotropy of the confinement potential and strain …

Although semiconductor excitons consist of a fermionic subsystem (electron and hole), they
carry an integer net spin similar to Cooper-electron-pairs. While the latter cause …

We introduce dielectric elliptical photonic nanowires to funnel efficiently the spontaneous
emission of an embedded emitter into a single optical mode. Inside a wire with a moderate …

We study the phonon influence on the spin of an exciton confined in a quantum dot. A
process causing the transition of an initial bright heavy hole exciton spin state to dark states …

Electron-hole exchange interaction splits the exciton ground state into “dark” and “bright”
states. The dynamics of those states depends on the internal relaxation time between bright …

Integrating light emitters based on III–V materials with silicon-based electronics is crucial for
further increase in data transfer rates in communication systems since the indirect bandgap …

Tellurium impurity centers in ZnSe were individually probed with time-resolved
photoluminescence (PL) spectroscopy. Resolution-limited peaks with an ultralow spatial …