Optical signals of spin switching using the optical Stark effect in a Mn doped quantum dot

Abstract

The optically induced spin dynamics of a single Mn atom embedded into a single semiconductor quantum dot can be strongly influenced by using the optical Stark effect. The exchange interaction gives rise to simultaneous spin flips between the quantum dot electron and Mn. In the time domain these flips correspond to exchange induced Rabi oscillations, which are typically off-resonant. By applying a detuned laser pulse, the states involved in the flipping can be brought into resonance by means of the optical Stark effect increasing the amplitude of the Rabi oscillations to one. In this paper we study theoretically how this spin dynamics can be monitored in time-resolved spectroscopy. In the spectrum the exchange interaction leads to a splitting of the exciton line into six lines, each corresponding to one of the six Mn spin states. The dynamical behavior of the Mn spin is reflected by the strength of the individual lines as a function of time. When an off-resonant optical pulse is applied the spectral positions of the lines shift, but still the flipping dynamics is visible.

References in corpus (8)

• Robust quantum dot state preparation via adiabatic passage with frequency-swept optical pulses
• Quantum state preparation in semiconductor dots by adiabatic rapid passage
• Optical Stark Effect and Dressed Excitonic States in a Mn-doped Quantum Dot
• Brightening of dark excitons in a single quantum dot containing a single magnetic ion
• Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot
• Phonon Effects on Population Inversion in Quantum Dots: Resonant, Detuned and Frequency-swept Excitations
• Spin-phonon coupling in single Mn doped CdTe quantum dot
• Optical orientation of a single Mn spin in a quantum dot: Role of carrier spin relaxation

Cited by in corpus (9)

• Direct optical state preparation of the dark exciton in a quantum dot
• Time-resolved pump-probe signals of a continuously driven quantum dot affected by phonons
• Dynamics of a Mn spin coupled to a single hole confined in a quantum dot
• Femtosecond Transfer and Manipulation of Persistent Hot-Trion Coherence in a Single CdSe/ZnSe Quantum Dot
• Tuning of Exciton States in a Magnetic Quantum Ring
• Resonant optical control of the spin of a single Cr atom in a quantum dot
• Optical control of an individual Cr spin in a semiconductor quantum dot
• Resonant photoluminescence and dynamics of a hybrid Mn-hole spin in a positively charged magnetic quantum dot
• Deterministic photon storage and readout in a semimagnetic quantum-dot--cavity system doped with a single Mn ion