Photoluminescence Spectroscopy of the Molecular Biexciton in Vertically Stacked Quantum Dot Pairs
arXiv:0705.1205 · doi:10.1103/PhysRevLett.99.197402
Abstract
We present photoluminescence studies of the molecular neutral biexciton-exciton spectra of individual vertically stacked InAs/GaAs quantum dot pairs. We tune either the hole or the electron levels of the two dots into tunneling resonances. The spectra are described well within a few-level, few-particle molecular model. Their properties can be modified broadly by an electric field and by structural design, which makes them highly attractive for controlling nonlinear optical properties.
arXiv comment4 pages, 5 figures, (v2, revision based on reviewers comments, published)
References in corpus (6)
- Entangled Photon Pairs from Semiconductor Quantum Dots
- Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
- Polarization-Correlated Photon Pairs from a Single Quantum Dot
- Engineering electron and hole tunneling with asymmetric InAs quantum dot molecules
- Optically Probing Spin and Charge Interactions in an Tunable Artificial Molecule
- Spin Fine Structure in Optically Excited Quantum Dot Molecules
Cited by in corpus (13)
- Scalable qubit architecture based on holes in quantum dot molecules
- The role of phonons for exciton and biexciton generation in an optically driven quantum dot
- Hole Spin Mixing in InAs Quantum Dot Molecules
- Exciton-spin memory with a semiconductor quantum dot molecule
- Enhanced sequential carrier capture into individual quantum dots and quantum posts controlled by surface acoustic waves
- Localization and interaction of indirect excitons in GaAs coupled quantum wells
- Charge control in laterally coupled double quantum dots
- Excited State Quantum Couplings and Optical Switching of an Artificial Molecule
- Influence of the charge carrier tunneling processes on the recombination dynamics in single lateral quantum dot molecules
- Polarization fine-structure and enhanced single-photon emission of self-assembled lateral InGaAs quantum dot molecules embedded in a planar micro-cavity
- Adiabatic optical entanglement between electron spins in separate quantum dots
- Optical signatures of spin dependent coupling in semimagnetic quantum dot molecules
- Defect-Free Axially-Stacked GaAs/GaAsP Nanowire Quantum Dots with Strong Carrier Confinement