In this project an optical readout scheme for photoluminescence based magnetic field sensors is developed.
Therefore, diamonds with nitrogen vacancy (NV) centers are employed. When optically pumped by a green laser these diamonds emit a red fluorescence. The intensity of the fluorescence depends on several parameters like the applied magnetic flux density. One field of application is the measurement of currents through magnetic fields.
Including the implementation of the readout scheme itself, also the construction of test setups for the creation of magnetic fields (DC and AC) as well as their measurement with competing technologies like Hall and GMR/AMR are planned.
R. Staacke et al., “Isotropic scalar quantum sensing of magnetic fields for industrial application”
L. Horsthemke et al, “A1.4 highly sensitive compact room temperature quantum scalar magnetometer”