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Micro-scale three-component quantum magnetometer based on nitrogen-vacancy color centers in diamond crystal

MetadataDetails
Publication Date2015-04-01
JournalTechnical Physics Letters
AuthorsA. K. VershovskiÄ­, A. K. Dmitriev
InstitutionsIoffe Institute
Citations15

Signals of optically detected magnetic resonance (ODMR) have been studied in the scheme of a three-component quantum magnetometer based on nitrogen vacancy color centers in diamond crystal with a volume of ∼0.01 mm3, mounted on the end of an optical fiber. A method for excitation of the ODMR signal is proposed that ensures the most reliable identification of the resonance lines at a minimum number of dead zones. A sensitivity to components of the field vector on a level of 76 nT Hzāˆ’1/2 is achieved, and it is shown that the shot-noise-limited sensitivity amounts to 6 nT Hzāˆ’1/2.