The Mollow triplets under few-photon excitation
arXiv:2305.12719 · doi:10.1364/OPTICA.491565
Abstract
Resonant excitation is an essential tool in the development of semiconductor quantum dots (QDs) for quantum information processing. One central challenge is to enable a transparent access to the QD signal without post-selection information loss. A viable path is through cavity enhancement, which has successfully lifted the resonantly scattered field strength over the laser background under \emph{weak} excitation. Here, we extend this success to the \emph{saturation} regime using a QD-micropillar device with a Purcell factor of 10.9 and an ultra-low background cavity reflectivity of just 0.0089. We achieve a signal to background ratio of 50 and an overall system responsivity of 3~\%, i.e., we detect on average 0.03 resonantly scattered single photons for every incident laser photon. Raising the excitation to the few-photon level, the QD response is brought into saturation where we observe the Mollow triplets as well as the associated cascade single photon emissions, without resort to any laser background rejection technique. Our work offers a new perspective toward QD cavity interface that is not restricted by the laser background.
8 Figures and 9 Pages. Comments are welcome
References in corpus (23)
- Interfacing single photons and single quantum dots with photonic nanostructures
- On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar
- Resonance Fluorescence of a Single Artificial Atom
- A bright and fast source of coherent single photons
- Towards optimal single-photon sources from polarized microcavities
- Resonance fluorescence from a coherently driven semiconductor quantum dot in a cavity
- Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence
- A photonic cluster state machine gun
- High Purcell factor generation of coherent on-chip single photons
- Sub-Natural Linewidth Single Photons from a Quantum Dot
- Heralded Single-Photon Emission from the Mollow Triplet Sidebands of a Quantum Dot
- Low-Noise GaAs Quantum Dots for Quantum Photonics
- Dephasing of Mollow Triplet Sideband Emission of a Resonantly Driven Quantum Dot in a Microcavity
- Collective super- and subradiant dynamics between distant optical quantum emitters
- A solid-state single-photon filter
- Optical nonlinearity for few-photon pulses on a quantum dot-pillar cavity device
- Tailoring solid-state single-photon sources with stimulated emissions
- Photon collection from a trapped ion--cavity system
- Temperature-dependent Mollow triplet spectra from a single quantum dot: Rabi frequency renormalisation and sideband linewidth insensitivity
- A semiconductor photon-sorter
- Observation of resonance fluorescence and the Mollow-triplet from a coherently driven site-controlled quantum dot
- On-chip interference of single photons from an embedded quantum dot and an external laser
- Observation of the Mollow Triplet from an optically confined single atom