Large-scale quantum-emitter arrays in atomically thin semiconductors

Abstract

The flourishing field of two-dimensional (2D) nanophotonics has generated much excitement in the quantum technologies community after the identification of quantum emitters (QEs) in layered materials (LMs). LMs offer many advantages as platforms for quantum circuits, such as integration within hybrid technologies, valley degree of freedom and strong spin-orbit coupling. QEs in LMs, however, suffer from uncontrolled occurrences, added to the uncertainty over their origin, which has been linked to defects and strain gradients. Here, we report a scalable method to create arrays of single-photon emitting QEs in tungsten diselenide (WSe2) and tungsten disulphide (WS2) using a nanopatterned silica substrate. We obtain devices with QE numbers in the range of hundreds, limited only by the flake size, and a QE yield approaching unity. The overall quality of these deterministic QEs surpasses that of their randomly appearing counterparts, with spectral wanderings of around 0.1 meV, an order of magnitude lower than previous reports. Our technique solves the scalability challenge for LM-based quantum photonic devices.

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• Two Dimensional Atomic Crystals
• Graphene Photonics and Optoelectronics
• Control of valley polarization in monolayer MoS2 by optical helicity
• Valley polarization in MoS2 monolayers by optical pumping
• Two-Dimensional Material Nanophotonics
• Observation of tightly bound trions in monolayer MoS2
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2
• Optical Generation of Excitonic Valley Coherence in Monolayer WSe2
• Tightly bound excitons in monolayer WSe2
• Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2
• Rayleigh Imaging of Graphene and Graphene Layers
• Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
• Shear and Layer Breathing Modes in Multilayer MoS2
• Valley dynamics probed through charged and neutral exciton emission in monolayer WSe2
• Atomically thin quantum light emitting diodes
• Strain-induced spatial and spectral isolation of quantum emitters in mono- and bi-layer WSe2
• Parallel Stitching of Two-Dimensional Materials
• Interface coupling in twisted multilayer graphene by resonant Raman spectroscopy of layer breathing modes
• Discrete quantum dot like emitters in monolayer MoSe2: Spatial mapping, Magneto-optics and Charge tuning

Cited by in corpus (170)

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• Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors
• Quantum Nanophotonics in Two-Dimensional Materials
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• Entanglement of single-photons and chiral phonons in atomically thin WSe${}_2$
• Fabrication and deterministic transfer of high quality quantum emitter in hexagonal boron nitride
• Optical response of monolayer, few-layer and bulk tungsten disulfide
• Enhanced light-matter interaction in an atomically thin semiconductor coupled with dielectric nano-antennas
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• Dry release transfer of graphene and few-layer h-BN by utilizing thermoplasticity of polypropylene carbonate for fabricating edge-contact-free van der Waals heterostructures
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• Atomically-thin Single-photon Sources for Quantum Communication
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• Roadmap for Photonics with 2D Materials
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• Coupling of deterministically activated quantum emitters in hexagonal boron nitride to plasmonic surface lattice resonances
• Spatiotemporally Controlled Room Temperature Exciton Transport under Dynamic Pressure
• Coherent dynamics of multi-spin ${\mathrm{V}}_{\mathrm{B}}^{-}$ centers in hexagonal boron nitride
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• Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride
• Integrated Single Photon Emitters
• Optical control of a single spin-valley in charged WSe${}_2$ quantum dots
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• Intrinsic Donor-Bound Excitons in Ultraclean Monolayer Semiconductors
• Rapid classification of quantum sources enabled by machine learning
• High Density, Localized Quantum Emitters in Strained 2D Semiconductors
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• Nanoscale modification of WS${}_2$ trion emission by its local electromagnetic environment
• Ultra-bright single photon source based on an atomically thin material
• Illuminating Invisible Grain Boundaries in Coalesced Single-Orientation WS2 Monolayer Films
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• Engineering Quantum Light Sources with Flat Optics
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• Dielectric nano-antennas for strain engineering in atomically thin two-dimensional semiconductors
• Excitonic emission in van-der-Waals nanotubes of transition metal dichalcogenides
• Dynamically-enhanced strain in atomically thin resonators
• Strain dependence of photoluminescence and circular dichroism in transition metal dichalcogenides: a k.p analysis
• Quantum light in curved low dimensional hexagonal boron nitride systems
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• Gate-defined, Accumulation-mode Quantum Dots in Monolayer and Bilayer WSe${}_2$
• Theory of Strain-Induced Confinement in Transition Metal Dichalcogenide Monolayers
• Enabling remote quantum emission in 2D semiconductors via porous metallic networks
• Coherent Control of Two-Dimensional Excitons
• Light-matter interaction in van der Waals heterostructures
• Coupling Quantum Emitters in WSe2 Monolayers to a Metal-Insulator-Metal Waveguide
• Tailoring Polarization in WSe${}_2$ Quantum Emitters through Deterministic Strain Engineering
• Achiral dielectric metasurfaces for spectral and polarization control of valley specific light emission from monolayer MoS2
• Engineering photonic environments for two-dimensional materials
• Tunable optical nonlinearity for TMD polaritons dressed by a Fermi sea
• Tailoring Photoluminescence by Strain-Engineering in Layered Perovskite Flakes
• Synthesis of built-in highly strained monolayer MoS2 using liquid precursor chemical vapor deposition
• Lasing and Amplification from Two-Dimensional Atom Arrays
• Tuning the Optical Properties of an MoSe${}_2$ Monolayer Using Nanoscale Plasmonic Antennas
• Electric Dipole Spin Resonance of 2D Semiconductor Spin Qubits
• Nonclassical light from large ensemble of trapped ions
• Fingerprinting quantum emitters in hexagonal boron nitride using strain
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• Atomic waveguide QED with atomic dimers
• Local tuning of WS2 photoluminescence using polymeric micro-actuators in a monolithic van der Waals heterostructure
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• Strain field in graphene induced by nanopillar mesh
• Single-photon emitters in WSe${}_2$: Critical role of phonons on excitation schemes and indistinguishability
• Predicting phase preferences of two-dimensional transition metal dichalcogenides using machine learning
• Theoretical study of quantum emitters in two-dimensional silicon carbide monolayer
• Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
• Single-molecule-resolution ultrafast near-field optical microscopy via plasmon lifetime extension
• Spatial control of carrier capture in two-dimensional materials: Beyond energy selection rules
• Comparative study of quantum emitter fabrication in wide bandgap materials using localized electron irradiation
• Charge-carrier complexes in monolayer semiconductors
• Narrow Line Width Quantum Emitters in an Electron-Beam-Shaped Polymer
• Local photodoping in monolayer MoS2
• Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
• Quantum light generation with ultra-high spatial resolution in 2D semiconductors via ultra-low energy electron irradiation
• Linear optical elements based on cooperative subwavelength emitter arrays
• Chiral Flat-Band Optical Cavity with Atomically Thin Mirrors
• Interplay of energy and charge transfer in WSe2/CrSBr heterostructures
• Criteria for deterministic single-photon emission in two-dimensional atomic crystals
• Hyperspectral photoluminescence and reflectance microscopy of 2D materials
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• Effect of electron-irradiation on layered quantum materials
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• Valley-selective energy transfer between quantum dots in atomically thin semiconductors
• Optimized higher-order photon state classification by machine learning
• Two dimensional semiconductors: optical and electronic properties
• Bottom up engineering of near-identical quantum emitters in atomically thin materials
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• Origin of selective enhancement of sharp defect emission lines in monolayer WSe${}_2$ on rough metal substrate
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• Wetting and Strain Engineering of 2D Materials on Nanopatterned Substrates
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