Optimizing the formation of depth-confined nitrogen vacancy center spin ensembles in diamond for quantum sensing

Abstract

Spin ensembles of nitrogen vacancy (NV) centers in diamond are emerging as powerful spin-based sensors for magnetic, electric and thermal field imaging with high spatial and temporal resolution. Here we characterize the formation of depth-confined NV center ensembles, activated by electron irradiation in diamond layers grown by plasma enhanced chemical vapor deposition with nitrogen co-doping. To do so, we exploit the high magnetic sensitivity of ensembles of NV centers to probe their spin environment as a function of growth and irradiation parameters. We engineer an NV ensemble whose magnetic sensitivity is within a factor of two of the static NV-NV dipolar interaction limit, thus demonstrating a powerful platform for quantum sensing.

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Cited by in corpus (15)

• Sensitivity Optimization for NV-Diamond Magnetometry
• Diamond magnetometer enhanced by ferrite flux concentrators
• Quantum Metrology with Strongly Interacting Spin Systems
• CVD diamond single crystals with NV centres: a review of material synthesis and technology for quantum sensing applications
• Probing many-body dynamics in a two dimensional dipolar spin ensemble
• Hyperpolarized solution-state NMR spectroscopy with optically polarized crystals
• Scalable Spin Squeezing from Finite Temperature Easy-plane Magnetism
• Determination of local defect density in diamond by double electron-electron resonance
• AC susceptometry of 2D van der Waals magnets enabled by the coherent control of quantum sensors
• Wide-field dynamic magnetic microscopy using double-double quantum driving of a diamond defect ensemble
• Two-dimensional spin systems in PECVD-grown diamond with tunable density and long coherence for enhanced quantum sensing and simulation
• Engineering quantum-coherent defects: the role of substrate miscut in chemical vapor deposition diamond growth
• Optical and spin coherence of Er${}^{3+}$ in epitaxial CeO${}_2$ on silicon
• A strongly interacting, two-dimensional, dipolar spin ensemble in (111)-oriented diamond
• Scalable, nanoscale positioning of highly coherent color centers in prefabricated diamond nanostructures