Generation of Non‐Classical Light Using Semiconductor Quantum Dots

Trivedi, Rahul; Fischer, Kevin A.; Vučković, Jelena; Müller, Kai

doi:10.1002/qute.201900007

Cited by 58 publications

(38 citation statements)

References 272 publications

(593 reference statements)

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“…Figure 16 shows some of the popular photonic materials choices and devices formed using them towards the major goals of current research in chip-scale entangled-photon sources. In-depth progress reviews are presented elsewhere [91][92][93][94]. Here, we will mainly focus on SPDC and SFWM devices which can be easily realized at the micro-chip scale using simple dielectric or semiconductor materials, and the devices do not require cryogenic cooling.…”

Section: Statusmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

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Integrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration have enabled table-top experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. These advances have enabled integrated quantum photonic technologies combining up to 650 optical and electrical components onto a single chip that are capable of programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications. In this roadmap article, we highlight the status, current and future challenges, and emerging technologies in several key research areas in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing. With advances in materials, photonic design architectures, fabrication and integration processes, packaging, and testing and benchmarking, in the next decade we can expect a transition from single- and few-function prototypes to large-scale integration of multi-functional and reconfigurable devices that will have a transformative impact on quantum information science and engineering.

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Section: Statusmentioning

confidence: 99%

2022 Roadmap on integrated quantum photonics

et al. 2022

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“…In this subsection, we consider the model used to study resonant pi‐pulse SPSs, as well as the off‐resonant phonon‐assisted inversion SPS, by considering the single exciton system shown in Figure a, driven by a pulse with time‐dependent amplitude

Ω false(t false) = {normalΩ}_{0} e^{- {(\frac{t - 3 τ_{p}}{τ_{p}})}^{2}}

, where

τ_{p}

is the pulse width. Our approximation of neglecting higher lying states is appropriate for

\frac{τ_{p} E_{B}}{4 ℏ} ≫ 1

(see Figure b) for neutral QDs (such that the frequency‐domain pulse amplitude at

ω_{L} - \frac{E_{B}}{2 ℏ}

is much less than its maximum amplitude), or charged QDs (trion states) …”

Section: Quantum Dot–cavity Modelsmentioning

confidence: 99%

Efficient Pulse‐Excitation Techniques for Single Photon Sources from Quantum Dots in Optical Cavities

Gustin

Hughes

2019

Adv Quantum Tech

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Rigorous and intuitive master equation models are presented to study on‐demand single photon sources from pulse‐excited quantum dots coupled to optical cavities. Three methods of source excitation are considered: resonant pi‐pulse, off‐resonant phonon‐assisted inversion, and two‐photon excitation of a biexciton–exciton cascade, and the effect of the pulse excitation process on the quantum indistinguishability, efficiency, and purity of emitted photons is investigated. By explicitly modelling the time‐dependent pulsed excitation process in a manner which captures non‐Markovian effects associated with coupling to photon and phonon reservoirs, it is found that photons of near‐unity indistinguishability can be emitted with over 90% efficiency for all these schemes, with the off‐resonant schemes not necessarily requiring polarization filtering due to the frequency separation of the excitation pulse, and allowing for very high single photon purities. Furthermore, the off‐resonant methods are shown to be robust over certain parameter regimes, with less stringent requirements on the excitation pulse duration in particular. Also, a semi‐analytical simplification of the master equation is derived for the off‐resonant drive, which gives insight into the important role that exciton–phonon decoupling for a strong drive plays in the off‐resonant phonon‐assisted inversion process.

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“…Hence the application of FFPCs offers attractive alternatives for e.g. single photon generation [63] with respect to simplicity of fabrication or tunability. The feasibility of this approach has been shown in [64,65], where the substrate holding the quantum dots was directly integrated with DBR reflectors (DBR = Distributed Bragg Reflector).…”

Section: Quantum Emitters Coupling To Ffpc Fieldsmentioning

confidence: 99%

Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities

Pfeifer,

Ratschbacher,

Gallego

et al. 2021

Preprint

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Fabry-Perot interferometers have stimulated numerous scientific and technical applications ranging from high resolution spectroscopy over metrology, optical filters to interfaces of light and matter at the quantum limit and more. End facet machining of optical fibers has enabled the miniaturization of optical Fabry-Perot cavities. Integration with fiber wave guide technology allows for small yet open devices with favorable scaling properties including mechanical stability and compact mode geometry. These Fiber Fabry-Perot Cavities (FFPCs) are stimulating extended applications in many fields including cavity quantum electrodynamics, optomechanics, sensing, nonlinear optics and more.Here we summarize the state of the art of devices based on Fiber Fabry-Perot Cavities, provide an overview of applications and conclude with expected further research activities.

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Generation of Non‐Classical Light Using Semiconductor Quantum Dots

Cited by 58 publications

References 272 publications

2022 Roadmap on integrated quantum photonics

2022 Roadmap on integrated quantum photonics

Efficient Pulse‐Excitation Techniques for Single Photon Sources from Quantum Dots in Optical Cavities

Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities

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