The nitrogen defect (NV) center is a promising quantum system with wide applications. In addition to quantum information technology, it is particularly used as a quantum magnetic sensor [1, 2, 3]. Although previous research has demonstrated the high potential of an NV-based sensor, complete sensor systems have rarely been practically realized.
In one project, we are developing such a measurement system towards application, e.g. in biomedicine. To this end, we are investigating technologies with which the components of the diamond magnetometer can be integrated into a compact and practical device.
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- V. M. Acosta et al. Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond, Appl. Phys. Lett. 97, 174104 (2010)
- H. Clevenson et al. Broadband magnetometry and temperature sensing with a light-trapping diamond waveguide, Nature Phys 11, 393–397 (2015)