Polarization sensitive spectroscopy of charged Quantum Dots
arXiv:0706.1288 · doi:10.1103/PhysRevB.76.235304
Abstract
We present an experimental and theoretical study of the polarized photoluminescence spectrum of single semiconductor quantum dots in various charge states. We compare our high resolution polarization sensitive spectral measurements with a new many-carrier theoretical model, which was developed for this purpose. The model considers both the isotropic and anisotropic exchange interactions between all participating electron-hole pairs. With this addition, we calculate both the energies and polarizations of all optical transitions between collective, quantum dot confined charge carrier states. We succeed in identifying most of the measured spectral lines. In particular, the lines resulting from singly-, doubly- and triply- negatively charged excitons and biexcitons. We demonstrate that lines emanating from evenly charged states are linearly polarized. Their polarization direction does not necessarily coincide with the traditional crystallographic direction. It depends on the shells of the single carriers, which participate in the recombination process.
11 pages, 9 figures. Revised version
References in corpus (14)
- Entangled Photon Pairs from Semiconductor Quantum Dots
- Eight-band calculations of strained InAs/GaAs quantum dots compared with one, four, and six-band approximations
- Multi-Exciton Spectroscopy of a Single Self Assembled Quantum Dot
- Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots
- Few-Particle Effects in Semiconductor Quantum Dots: Observation of Multi-Charged-Excitons
- Semiconductor quantum dot - a quantum light source of multicolor photons with tunable statistics
- Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
- Carrier-Carrier Correlations in an Optically Excited Single Semiconductor Quantum Dot
- Optical spectroscopy of single quantum dots at tunable positive, neutral and negative charge states
- Multiband theory of multi-exciton complexes in self-assembled quantum dots
- Spin-selective optical absorption of singly charged excitons in a quantum dot
- Radiative Lifetimes of Single Excitons in Semiconductor Quantum Dots- Manifestation of the Spatial Coherence Effect
- Fine structure of exciton excited levels in a quantum dot with a magnetic ion
- Emission characteristics of quantum dots in planar microcavities
Cited by in corpus (30)
- Optical spectroscopy of single quantum dots at tunable positive, neutral and negative charge states
- Polarized emission of GaN/AlN quantum dots : single dot spectroscopy and symmetry-based theory
- Determinisitic Writing and Control of the Dark Exciton Spin using Short Single Optical Pulses
- Optically induced rotation of a quantum dot exciton spin
- Coherent optical writing and reading of the exciton spin state in single quantum dots
- Atomistic theory of dark excitons in self-assembled quantum dots of reduced symmetry
- Excitation spectroscopy of single quantum dots at tunable positive, neutral and negative charge states
- Inter-shell exchange interaction in CdTe/ZnTe quantum dots: magneto-photoluminescence of X, X2- and XX-
- Conditions for entangled photon emission from (111)B site-controlled Pyramidal quantum dots
- Two-photon- photoluminescence excitation spectroscopy of single quantum-dots
- Radiative cascades in charged quantum dots
- Proposed Scheme to Generate Bright Entangled Photon Pairs by Application of a Quadrupole Field to a Single Quantum Dot
- Electron-hole spin flip-flop in semiconductor quantum dots
- Radiative cascade from quantum dot metastable spin-blockaded biexciton
- Tunneling Effects on Fine-Structure Splitting in Quantum Dot Molecules
- Deterministic Coherent Writing of a Long-Lived Semiconductor Spin Qubit Using One Ultrafast Optical Pulse
- Determinstic Generation of a Quantum Dot-Confined Triexciton and its Radiative Decay via Three-Photon Cascade
- All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
- Influence of quantum dot geometry on p-shell transitions in differently charged quantum dots
- Optical study of electron-electron exchange interaction in CdTe/ZnTe quantum dots
- From the artificial atom to the Kondo-Anderson model: orientation dependent magneto-photoluminescence of charged excitons in InAs quantum dots
- Optically induced spin gates in coupled quantum dots using the electron-hole exchange interaction
- Distilling entanglement from cascades with partial "Which Path" ambiguity
- Controlling the Dark Exciton Spin Eigenstates by External Magnetic Field
- Longitudinal and transverse exciton spin relaxation times in single InP/InAsP/InP nanowire quantum dots
- Polarization memory in single Quantum Dots
- Anisotropy of in-plane hole g-factor in CdTe/ZnTe quantum dots
- Selection Rules for Non-Radiative Carrier Relaxation Processes in Semiconductor Quantum Dots
- The excited spin-triplet state of a charged exciton in quantum dots
- Magneto-optics of a charge-tunable quantum dot: Observation of a negative diamagnetic shift