So, what are nitrogen vacancy diamonds? NV centres occur when the carbon lattice of a diamond is interrupted by a nitrogen atom and an adjacent void. This can occur naturally, but more often is specially engineered. The introduction of the nitrogen atom frees a single pair of electrons from the diamond’s chemical structure which allows SBQuantum to drive magnetic information from their spin.
Exciting this electron pair with a green laser, we can understand the nature of their spin as they interact with Earth’s magnetic field to output red light. The nature of this red light allows us to map magnetic resonance lines in that location. Not only does this technique allow us to see greater localised nuance in these lines, but by mapping this data on a three-dimensional plot, we use tensor gradiometry to understand the orientation of the sensor.
Next, we add our proprietary algorithms to discriminate environmental noise. We want to focus on the relevant features, not a car driving past down the road!