Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride

• URL: http://arxiv.org/abs/2011.12224v2
• Date: Thu, 8 Jul 2021 11:54:47 GMT
• Title: Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride
• Authors: Clarisse Fournier, Alexandre Plaud, S\'ebastien Roux, Aur\'elie Pierret, Michael Rosticher, Kenji Watanabe, Takashi Taniguchi, St\'ephanie Buil, Xavier Qu\'elin, Julien Barjon, Jean-Pierre Hermier and Aymeric Delteil
• Abstract summary: Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.
• Score: 45.39825093917047
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization offered by this class of materials. However, accurate control of both the spatial location and the emission wavelength of the quantum emitters is essentially lacking to date, thus hindering further technological steps towards scalable quantum photonic devices. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. SPE ensembles are generated with a spatial accuracy better than the cubed emission wavelength, thus opening the way to integration in optical microstructures. Stable and bright single photon emission is subsequently observed in the visible range up to room temperature upon non-resonant laser excitation. Moreover, the low-temperature emission wavelength is reproducible, with an ensemble distribution of width 3 meV, a statistical dispersion that is more than one order of magnitude lower than the narrowest wavelength spreads obtained in epitaxial hBN samples. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.

Related papers

• Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
  Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
  arXiv  Detail & Related papers  (2024-05-03T23:02:30Z)
• Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride [27.965277627489417]
  Single photon emitters in solid-state crystals have received a lot of attention as building blocks for numerous quantum technology applications. Here, we demonstrate the localized fabrication of hBN emitter arrays by electron beam irradiation. Our measurements of optically detected magnetic resonance have not revealed any addressable spin states.
  arXiv  Detail & Related papers  (2022-08-29T10:44:12Z)
• Observation of large spontaneous emission rate enhancement of quantum dots in a broken-symmetry slow-light waveguide [0.0]
  We demonstrate a nanophotonic waveguide platform with embedded quantum dots (QDs) The design uses slow-light effects in a glide-plane photonic crystal waveguide with QD tuning to match the emission frequency to the slow-light region. We then demonstrate a 5 fold Purcell enhancement for a dot with high degree of chiral coupling to waveguide modes.
  arXiv  Detail & Related papers  (2022-08-12T18:42:16Z)
• Cavity Quantum Electrodynamics Design with Single Photon Emitters in Hexagonal Boron Nitride [6.352389759470726]
  We numerically investigate the cavity quantum electrodynamics (cavity-QED) scheme incorporating defect-enabled single photon emitters in h-BN microdisk resonators. The whispering-gallery nature of microdisks can support multiple families of cavity resonances with different radial and azimuthal mode indices simultaneously. This study contributes toward realizing h-BN photonic components, such as low-threshold microcavity lasers and high-purity single photon sources.
  arXiv  Detail & Related papers  (2021-06-05T21:53:44Z)
• Room temperature single-photon emitters in silicon nitride [97.75917079876487]
  We report on the first-time observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates. As SiN has recently emerged as one of the most promising materials for integrated quantum photonics, the proposed platform is suitable for scalable fabrication of quantum on-chip devices.
  arXiv  Detail & Related papers  (2021-04-16T14:20:11Z)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)
• Tunable quantum photonics platform based on fiber-cavity enhanced single photon emission from two-dimensional hBN [52.915502553459724]
  In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity. We achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling. Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
  arXiv  Detail & Related papers  (2020-06-23T14:20:46Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles [0.0]
  We demonstrate the control of the Purcell enhanced emission of a small ensemble of erbium ions doped into nanoparticles. We can tune the cavity on- and out of-resonance by controlling its length with sub-nanometer precision. This allows us to shape in real time the Purcell enhanced emission of the ions and to achieve full control over the emitted photons' waveforms.
  arXiv  Detail & Related papers  (2020-01-23T14:09:55Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.