Pump-Probe Faraday Rotation and Ellipticity in an Ensemble of Singly Charged Quantum Dots

Abstract

A description of spin Faraday rotation, Kerr rotation and ellipticity signals for single- and multi-layer ensembles of singly charged quantum dots (QDs) is developed. The microscopic theory considers both the single pump-pulse excitation and the effect of a train of such pulses, which in the case of long resident-electron spin coherence time leads to a stationary distribution of the electron spin polarization. The calculations performed for single-color and two-color pump-probe setups show that the three experimental techniques: Faraday rotation, Kerr rotation and ellipticity measurements provide complementary information about an inhomogeneous ensemble of QDs. The microscopic theory developed for a three-dimensional ensemble of QDs is shown to agree with the phenomenological description of these effects. The typical time-dependent traces of pump-probe Faraday rotation, Kerr rotation and ellipticity signals are calculated for various experimental conditions.

19 pages, 12 figures

References in corpus (7)

• Optical control of spin coherence in singly charged (In,Ga)As/GaAs quantum dots
• Generating Spin Currents in Semiconductors with the Spin Hall Effect
• Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot
• Theory of fast optical spin rotation in a quantum dot based on geometric phases and trapped states
• Spin coherence of a two-dimensional electron gas induced by resonant excitation of trions and excitons in CdTe/(Cd,Mg)Te quantum wells
• Robust manipulation of electron spin coherence in an ensemble of singly charged quantum dots
• Time-resolved and continuous-wave optical spin pumping of semiconductor quantum wells

Cited by in corpus (19)

• Spin noise in quantum dot ensembles
• Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots
• Mode locking of hole spin coherences in CsPb(Cl,Br)${}_3$ perovskite nanocrystals
• Spin dynamics of electrons and holes interacting with nuclei in MAPbI${}_3$ perovskite single crystals
• Spin dynamics of electrons and holes in InGaAs/GaAs quantum wells at milliKelvin temperatures
• Tailoring the electron and hole Landé factors in lead halide perovskite nanocrystals by quantum confinement and halide exchange
• Suppression of nuclear spin fluctuations in an InGaAs quantum dot ensemble by GHz-pulsed optical excitation
• Optical measurement of electron spins in quantum dots: Quantum Zeno effects
• Cross-correlation spectra in interacting quantum dot systems
• Anomalous magnetic suppression of spin relaxation in a two-dimensional electron gas in a GaAs/AlGaAs quantum well
• Tuning the nuclei-induced spin relaxation of localized electrons by the quantum Zeno and anti-Zeno effects
• Faraday and Kerr rotation due to photoinduced orbital magnetization in two-dimensional electron gas
• Resonant spin amplification in Faraday geometry
• Hole spin coherence in InAs/InAlGaAs self-assembled quantum dots emitting at telecom wavelengths
• Birefringent spin-photon interface generates polarization entanglement
• Spin properties in droplet epitaxy-grown telecom quantum dots
• Simulation of nonequilibrium spin dynamics in quantum dots subjected to periodic laser pulses
• Layer-Dependent Spin Properties of Charge Carriers in Vertically Coupled Telecom Quantum Dots
• Two-color Kerr microscopy of two-dimensional materials with sub-picosecond time resolution