Abstract
The effect of magnetically dependent absorption of radio-frequency high-frequency radiation detected by the method of optically detected magnetic resonance has been studied, and an explanation for it is proposed. A method of high-frequency excitation of optically detected magnetic resonance in nitrogen-vacancy color centers in a diamond crystal has been experimentally studied that provides magnetometric sensitivity at the level of units of nanoteslas in the 1-Hz band in zero and weak (<0.1 mT) magnetic fields. The method does not involve the use of microwave fields, which makes it attractive for biological and medical applications, primarily for tasks of invasive magnetoencephalography.
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The reported study was funded by RFBR, project number 19-29-10004.
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Translated by N. Petrov
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Vershovskii, A.K., Dmitriev, A.K. A Weak Magnetic Field Sensor Based on Nitrogen-Vacancy Color Centers in a Diamond Crystal. Tech. Phys. 65, 1301–1306 (2020). https://doi.org/10.1134/S1063784220080216
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DOI: https://doi.org/10.1134/S1063784220080216