Figure 6

TM EDMR for vector magnetometry. (a) and (b) Low TM EDMR with \(\nu =10~\text {MHz}\). An overlap of the two resonant SDR peaks leads to a new \(B=0\) resonance condition which can be employed for magnetometry. (c) Illustration of an extension to three dimensions. \(f_B^x\), \(f_B^y\) and \(f_B^z\) have distinguishable values but their maximum frequency is limited by the performance of the modulation coils. Using a common \(f_{RF}\) leads to high frequency resonant transitions in the shot noise regime and distinguishable for orientation information.