The fine structure of excitons is studied by magnetophotoluminescence spectroscopy of
single self-assembled In (Ga) As/(Al) GaAs quantum dots. Both strength and orientation of …

Applications in optical quantum information technology require a new type of light source
able to emit exactly one photon periodically with minimal timing jitter. We investigate the …

Abstract Nondegenerate (two-wavelength) two-photon absorption using coherent optical
fields is used to show that there are two different quantum mechanical pathways leading to …

Photoluminescence spectra from single self-assembled InAs quantum dots embedded in an
Al 0.6 Ga 0.4 As matrix are reported. The spectra consist of a higher-energy linearly …

A semiconductor quantum dot model accounting for single exciton as well as biexciton
states coupled to phonons and laser light is investigated in the limit of strong electronic …

Five stacked layers of InAs quantum dots (QDs) embedded in quaternary InGaAsP are
grown on (100) InP substrate to form a laser diode. The QD ensemble has a density of 1.5× …

Abstract Using GaAs/AlGaAs self-assembled quantum dots we study the few-particle
dynamics of fully confined systems, which is associated with purely Coulomb interaction and …

We investigate the cascaded emission of photons from low-density InGaAs/GaAs quantum
dots grown by metal-organic vapor-phase epitaxy that are intentionally redshifted toward …

We demonstrate the application of a subsurface solid immersion technique to the
photoluminescence spectroscopy of individual quantum dots. Contrasted with the …

We give an overview of semiconductor structures that confine charge carriers on a length
scale comparable to their de Broglie wavelength, comment on the production and the device …