Dressed excitonic states and quantum interference in a three-level quantum dot ladder system

Abstract

We observe dressed states and quantum interference effects in a strongly driven three-level quantum dot ladder system. The effect of a strong coupling field on one dipole transition is measured by a weak probe field on the second dipole transition using differential reflection. When the coupling energy is much larger than both the homoge-neous and inhomogeneous linewidths an Autler-Townes splitting is observed. Striking differences are observed when the transitions resonant with the strong and weak fields are swapped, particularly when the coupling energy is nearly equal to the measured linewidth. This result is attributed to quantum interference: a modest destructive or constructive interference is observed depending on the pump / probe geometry. The data demonstrate that coher-ence of both the bi-exciton and the exciton is maintained in this solid-state system, even under intense illumina-tion, which is crucial for prospects in quantum information processing and non-linear optical devices.

8 pages, 6 figures, submitted to New Journal of Physics

References in corpus (12)

• Controlling the Spontaneous Emission Rate of Single Quantum Dots in a 2D Photonic Crystal
• Entangled Photon Pairs from Semiconductor Quantum Dots
• Resonance fluorescence from a coherently driven semiconductor quantum dot in a cavity
• Improved fidelity of triggered entangled photons from single quantum dots
• Voltage-Controlled Optics of a Quantum Dot
• Observation of dressed excitonic states in a single quantum dot
• Coulomb interactions in single, charged self-assembled quantum dots: radiative lifetime and recombination energy
• Dispersive properties and giant Kerr non-linearities in Dipole Induced Transparency
• Contrast in transmission spectroscopy of a single quantum dot
• Dynamics of Coupled Qubits Interacting with an Off-Resonant Cavity
• Creating excitonic entanglement in quantum dots through the optical Stark effect
• Absorptive and dispersive optical responses of excitons in a single quantum dot

Cited by in corpus (16)

• Indistinguishable photons from the resonance fluorescence of a single quantum dot in a microcavity
• Cavity-enhanced simultaneous dressing of quantum dot exciton and biexciton states
• Plasmon-assisted two-photon Rabi oscillations in a semiconductor quantum dot -- metal nanoparticle heterodimer
• Plasmon-assisted two-photon absorption in a semiconductor quantum dot -- metallic nanoshell composite
• Exchange interaction and tunneling induced transparency in coupled quantum dots
• Nonlinear optical response of a two-dimensional quantum-dot supercrystal: Emerging multistability, periodic and aperiodic self-oscillations, chaos, and transient chaos
• Observation of Mollow Triplets with Tunable Interactions in Double Lambda Systems of Individual Hole Spins
• Tunneling-induced transparency and Autler-Townes splitting in a triple quantum dot
• Multiplexed Single Photons from Deterministically Positioned Nanowire Quantum Dots
• A scheme comparison of Autler-Townes based slow light in inhomogeneously broadened quantum dot media
• Instabilities in the optical response of a semiconductor quantum dot - metal nanoparticle heterodimer: self - oscillations and chaos
• All-optical Tuning of Indistinguishable Single-Photons Generated in Three-level Quantum Systems
• Cavity quantum interferences with three-level atoms
• Fundamentals of heterodyne wave mixing spectroscopy: a tutorial
• Passive stabilization of hole spin qubit using optical Stark effect
• Quantum enhancement of qutrit dynamics through driving field and photonic band-gap crystal