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The level structure of NV center in diamond and the setup of temperature-robust diamond magnetometry based on the double-transition method. (a) Energy-level diagram for the NV center. The external magnetic field Bz ![]()
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|ms=±1⟩ ![]()
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Figures of the Article
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The level structure of NV center in diamond and the setup of temperature-robust diamond magnetometry based on the double-transition method. (a) Energy-level diagram for the NV center. The external magnetic field Bz applied along the NV symmetry axis lifts the degeneracy of|ms=±1⟩ sublevels with a Zeeman shift. (b) The schematic of experimental setup. The green and red arrows represent for the 532 nm laser and fluorescence. A few of components used in the experimental setup like the coil for applying bias magnetic field are not shown in the figure. -
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The simulation results of magnetometry signal drifts δS as the function of zero-field splitting variationδD for the single-transition and double-transition magnetometry. For the double-transition magnetometry, the normalizedδS is immune toδD . -
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The measured magnetometry signal drifts δS as the function of zero-field splitting variationδD for the single-transition and double-transition magnetometry. Each data point was acquired for 5 s and averaged. The error bars are smaller than the data points. -
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Comparison between the single-transition and double-transition magnetometry working under significant temperature drifts. (a) and (b) Time domain temperature drifts δT and magnetic field measurement result driftsδBmea of the two types of magnetometry.
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