All In One Quantum Diamond Microscope for Rapid Sample Characterization.

Nitrogen Vacancy (NV) defects in diamond host optically pumpable spin-1 states with long coherence times which are ideal for room temperature magnetometry. Samples can be engineered to have part-per-million NV density, creating robust, portable, vectorized magnetic sensors with high spatial resolution. We present an all-in-one apparatus which can simultaneously measure NV ensemble quantum coherence properties across mm-scale regions, as well as classical properties such as diamond substrate and active layer strain and NV charge state, allowing us to characterize NV diamond samples rapidly for magnetometry applications.