Phosphorus doped quantum diamond for magnetometry

Advent Diamond proposes to advance space-based magnetic field sensors by developing novel diamond nitrogen-vacancy (NV) center magnetometry components with electrical readout. This work uses recent breakthroughs in CVD-grown doped diamond and its use in all-diamond diamond components. In this project, we leverage these breakthroughs to develop NV centers embedded in diamond electronic devices for space-based magnetometry, and study two designs, one with photo-excitation and electric readout, the other for all-electric excitation and readout. In Phase II, we build upon the successful Phase I feasibility study, in which we manufactured prototype components, demonstrated growth of the material PQuantumDiamondTM, and measured the optically detected magnetic resonance (ODMR) and photo-resistance detected magnetic resonance (PDMR) signal. The PDMR results shows sharp dips, validating the use of this approach for high magnetic field sensitivity. Phase II work will raise the TRL of this material and the components, and will include prototyping of an instrument based on the component.