Optimization of the coherence properties of diamond samples with an intermediate concentration of NV centers

Abstract

The sensitivity of the nitrogen-vacancy (NV) color centers in diamond-based magnetometers strongly depends on the number of NV centers involved in the measurement. Unfortunately, an increasing concentration of NV centers leads to decreases of their dephasing and coherence time if the nitrogen content exceeds a certain threshold level (approximately $10^{17}\mathrm{c}{\mathrm{m}}^{-3}$). Here, we demonstrate that this increased dephasing can be efficiently compensated by postprocessing procedures in the vicinity of the threshold concertation, thus extending possible useful concentrations on NV centers with the maximum possible decoherence time in diamonds with a natural carbon content.

References in corpus (14)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Universal dynamical decoupling of a single solid-state spin from a spin bath
• High nitrogen-vacancy density diamonds for magnetometry applications
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• Coherence of Nitrogen-Vacancy Electronic Spin Ensembles in Diamond
• Magnetic field imaging with NV ensembles
• Simultaneous Broadband Vector Magnetometry Using Solid-State Spins
• Magnetocardiography with a modular spin-exchange relaxation free atomic magnetometer array
• Effects of low energy electron irradiation on formation of nitrogen-vacancy centers in single-crystal diamond
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• Spin properties of NV centers in high-pressure, high-temperature grown diamond
• Statistical investigations on nitrogen-vacancy center creation
• Geometric spin echo under zero field

Cited by in corpus (5)

• NV${}^{-}$ Diamond Laser
• The study of the efficiency of nitrogen to NV-center conversion in high nitrogen content samples
• Interaction of Nitrogen-Vacancy Centers in Diamond with a Dense Ensemble of Carbon-13
• Optimization of the double electron-electron resonance for C-centers in diamond
• Creation of nitrogen-vacancy centers in chemical vapor deposition diamond for sensing applications