Fine structure and optical pumping of spins in individual semiconductor quantum dots

Abstract

We review spin properties of semiconductor quantum dots and their effect on optical spectra. Photoluminescence and other types of spectroscopy are used to probe neutral and charged excitons in individual quantum dots with high spectral and spatial resolution. Spectral fine structure and polarization reveal how quantum dot spins interact with each other and with their environment. By taking advantage of the selectivity of optical selection rules and spin relaxation, optical spin pumping of the ground state electron and nuclear spins is achieved. Through such mechanisms, light can be used to process spins for use as a carrier of information.

References in corpus (23)

• Quantum Computation with Quantum Dots
• Electron spin relaxation by nuclei in semiconductor quantum dots
• Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
• Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots
• Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
• Voltage-Controlled Optics of a Quantum Dot
• Electrical control of spin relaxation in a quantum dot
• Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
• Hyperfine-mediated gate-driven electron spin resonance
• Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
• Nuclear Spin Switch in Semiconductor Quantum Dots
• Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot
• Electrically tunable g-factors in quantum dot molecular spin states
• Bistability of the Nuclear Polarisation created through optical pumping in InGaAs Quantum Dots
• Nonlinear dynamics of quantum dot nuclear spins
• Manipulation of the Spin Memory of Electrons in n-GaAs
• Spin Fine Structure in Optically Excited Quantum Dot Molecules
• Fast initialization of the spin state of an electron in a quantum dot in the Voigt configuration
• Stabilizing effect of nuclear quadrupole interaction on the polarization of electron-nuclear spin system in a quantum dot
• Self-Polarization and Dynamical Cooling of Nuclear Spins in Double Quantum Dots
• Electrically-Driven Reverse Overhauser Pumping of Nuclear Spins in Quantum Dots
• Hysteretic response of electron-nuclear spin system in single InAlAs quantum dots:Excitation power and polarization dependences
• The Nuclear Spin Nanomagnet

Cited by in corpus (15)

• Nuclear spin physics in quantum dots: an optical investigation
• Quantum computing by optical control of electron spins
• Pumping of nuclear spins by the optical solid effect in a quantum dot
• Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots
• Controlling the polarization eigenstate of a quantum dot exciton with light
• Tunneling Effects on Fine-Structure Splitting in Quantum Dot Molecules
• Dynamic nuclear polarization in InGaAs/GaAs and GaAs/AlGaAs quantum dots under non-resonant ultra-low power optical excitation
• Exchange interaction and tunneling induced transparency in coupled quantum dots
• Multitudes of Stable States in a Periodically Driven Electron-Nuclear Spin System in a Quantum Dot
• Alignment of nuclear spins in single quantum dots using unpolarized light
• Fine structure of two-electron states in single and double quantum dots
• Spin beats in the photoluminescence polarization dynamics of charged excitons in InP/(In,Ga)P quantum dots in presence of nuclear quadrupole interaction
• Signatures of spin blockade in the optical response of a charged quantum dot
• Electrically tunable dynamic nuclear spin polarization in GaAs quantum dots at zero magnetic field
• Optical Spin Initialization and Non-Destructive Measurement in a Quantum Dot Molecule