6:15 PM - 6:30 PM
[8p-Z05-18] Sensitivity of the diamond quantum sensor in the simultaneous multiple operation point measurement
Keywords:NV center, diamond, quantum sensor
Diamond quantum sensor based on the NV center in the diamond crystal was used to construct the two-point locked system enabling the simultaneous measurement of the magnetic field and the temperature without magnetic shield. The diamond sensor was the Ib HPHT crystal with 1018 cm-2 EB dose, which was adhered to the end of the optical fiber. Microwave frequencies were locked to the paired two resonance points in the ODMR spectrum. Measured sensitivity was 17~19 nT/√Hz at the light power of 190 mW.