High-contrast plasmonic-enhanced shallow spin defects in hexagonal boron nitride for quantum sensing

Abstract

The recently discovered spin defects in hexagonal boron nitride (hBN), a layered van der Waals material, have great potential in quantum sensing. However, the photoluminescence and the contrast of the optically detected magnetic resonance (ODMR) of hBN spin defects are relatively low so far, which limits their sensitivity. Here we report a record-high ODMR contrast of 46$\%$ at room temperature, and simultaneous enhancement of the photoluminescence of hBN spin defects by up to 17-fold by the surface plasmon of a gold-film microwave waveguide. Our results are obtained with shallow boron vacancy spin defects in hBN nanosheets created by low-energy He${}^{+}$ ion implantation, and a gold-film microwave waveguide fabricated by photolithography. We also explore the effects of microwave and laser powers on the ODMR, and improve the sensitivity of hBN spin defects for magnetic field detection. Our results support the promising potential of hBN spin defects for nanoscale quantum sensing.

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Cited by in corpus (47)

• Wide Field Imaging of van der Waals Ferromagnet Fe3GeTe2 by Spin Defects in Hexagonal Boron Nitride
• Nuclear spin polarization and control in a van der Waals material
• Coupling spin defects in hexagonal boron nitride to monolithic bullseye cavities
• Quantum sensing and imaging with spin defects in hexagonal boron nitride
• Coherent control of an ultrabright single spin in hexagonal boron nitride at room temperature
• Coherent dynamics of strongly interacting electronic spin defects in hexagonal boron nitride
• Excited State Spectroscopy of Boron Vacancy Defects in Hexagonal Boron Nitride using Time-Resolved Optically Detected Magnetic Resonance
• Room temperature coherent control of protected qubit in hexagonal boron nitride
• Magnetic imaging with spin defects in hexagonal boron nitride
• Coherent dynamics of multi-spin ${\mathrm{V}}_{\mathrm{B}}^{-}$ centers in hexagonal boron nitride
• Excited-state optically detected magnetic resonance of spin defects in hexagonal boron nitride
• Excited-state spin-resonance spectroscopy of V${}_{\text{B}}^{-}$ defect centers in hexagonal boron nitride
• Greatly Enhanced Emission from Spin Defects in Hexagonal Boron Nitride Enabled by a Low-Loss Plasmonic Nano-Cavity
• Electron-nuclear coherent coupling and nuclear spin readout through optically polarized VB- spin states in hBN
• Detection of paramagnetic spins with an ultrathin van der Waals quantum sensor
• Excited-state spectroscopy of spin defects in hexagonal boron nitride
• Quantum sensing of paramagnetic spins in liquids with spin qubits in hexagonal boron nitride
• Magnetic field imaging by hBN quantum sensor nanoarray
• Symmetric carbon tetramers forming chemically stable spin qubits in hBN
• Probing Stress and Magnetism at High Pressures with Two-Dimensional Quantum Sensors
• Plasmonic-enhanced bright single spin defects in silicon carbide membranes
• Robust Nuclear Spin Polarization via Ground-State Level Anti-Crossing of Boron Vacancy Defects in Hexagonal Boron Nitride
• Manipulating the Charge State of Spin Defects in Hexagonal Boron Nitride
• Plasmonic Nanocavity to Boost Single Photon Emission from Defects in Thin Hexagonal Boron Nitride
• Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
• Intrinsic high-fidelity spin polarization of charged vacancies in hexagonal boron nitride
• Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
• Coherent Spins in van der Waals Semiconductor GeS2 at Ambient Conditions
• Non-Markovian quantum interconnect formed by a surface plasmon polariton waveguide
• Coupling spin defects in hexagonal boron nitride to a microwave cavity
• Magnetic-field dependent VB- spin decoherence in hexagonal boron nitrides: A first-principles study
• Proximity-Induced Exchange Interaction: a New Pathway for Quantum Sensing using Spin Centers in Hexagonal Boron Nitride
• Quantifying the creation of negatively charged boron vacancies in He-ion irradiated hexagonal boron nitride
• Radiation pressure backaction on a hexagonal boron nitride nanomechanical resonator
• Systematic characterization of nanoscale $h$-BN quantum sensor spots created by helium-ion microscopy
• Quantum microscopy with van der Waals heterostructures
• A charge transfer mechanism for optically addressable solid-state spin pairs
• Spin-State Selective Excitation in Spin Defects of Hexagonal Boron Nitride
• Stability of the discrete time-crystalline order in spin-optomechanical and open cavity QED systems
• Semiconductor Room-Temperature Maser
• Room-temperature hybrid 2D-3D quantum spin system for enhanced magnetic sensing and many-body dynamics
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• Multi-wavelength Spin Dynamics of Defects in Hexagonal Boron Nitride
• Single photon emitters in hBN: Limitations of atomic resolution imaging and potential sources of error
• All-optical magnetic imaging with spin defects in van der Waals materials at Angstrom-scale
• Decoherence of V${}_{\mathrm{B}}^{-}$ spin defects in monoisotopic hexagonal boron nitride
• Nuclear Spin-Mediated Relaxation Mechanisms of the V${}_B^{-}$ Center in hBN