A charged quantum dot micropillar system for deterministic light matter interactions

Abstract

Quantum dots (QDs) are semiconductor nanostructures in which a three dimensional potential trap produces an electronic quantum confinement, thus mimicking the behaviour of single atomic dipole-like transitions. However unlike atoms, QDs can be incorporated into solid state photonic devices such as cavities or waveguides that enhance the light-matter interaction. A near unit efficiency light-matter interaction is essential for deterministic, scalable quantum information (QI) devices. In this limit, a single photon input into the device will undergo a large rotation of the polarization of the light field due to the strong interaction with the QD. In this paper we measure a macroscopic ($\sim 6^o$) phase shift of light as a result of the interaction with a negatively charged QD coupled to a low quality-factor (Q$\sim 290$) pillar microcavity. This unexpectedly large rotation angle demonstrates this simple low Q-factor design would enable near deterministic light-matter interactions.

6 pages, 3 figures

References in corpus (6)

• Giant optical Faraday rotation induced by a single electron spin in a quantum dot: Applications to entangling remote spins via a single photon
• Experimental realization of highly-efficient broadband coupling of single quantum dots to a photonic crystal waveguide
• Perfect Reflection of Light by an Oscillating Dipole
• Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime
• Macroscopic Polarization Rotation Induced by a Single Spin
• Deterministic optical quantum computer using photonic modules

Cited by in corpus (17)

• Phonon limit to simultaneous near-unity efficiency and indistinguishability in semiconductor single photon sources
• Spin-based single-photon transistor, dynamic random access memory, diodes and routers in semiconductors
• A spin-photon interface using charge-tunable quantum dots strongly coupled to a cavity
• Tomography of optical polarization rotation induced by a quantum dot-cavity device
• Efficient deterministic giant photon phase shift from a single charged quantum dot
• Position-dependent chiral coupling between single quantum dots and cross waveguides
• Quantum Zeno effect under continuous spin noise measurement in a quantum dot-micropillar cavity
• Ultrafast pulse phase shift in a charged quantum dot- micropillar system
• Telecommunication wavelength confined Tamm plasmon structures containing InAs/GaAs quantum dot emitters at room temperature
• Complete hyperentangled Bell states analysis for polarization-spatial-time-bin degrees of freedom with unity fidelity
• Direct-write projection lithography of quantum dot micropillar single photon sources
• Probing Purcell enhancement and photon collection efficiency of InAs quantum dots at nodes of the cavity electric field
• Stabilisation of an optical transition energy via nuclear Zeno dynamics in quantum dot-cavity systems
• Resonant two-laser spin-state spectroscopy of a negatively charged quantum dot-microcavity system with a cold permanent magnet
• Design principles for >90% efficiency and >99% indistinguishability broadband quantum dot cavities
• Optical amplitude and phase modulation dynamics at the single-photon level in a quantum dot ridge waveguide
• Spin-augmented observables for efficient photonic quantum error correction