NV Center ODMR

D = 2870 MHz · γ = 28 MHz/mT · Two Lorentzian dips track B symmetrically around D

2.0 mT
10.0 MHz
Fluorescence I(f)  |  Resonance f±
Spectral Readout
f+ =
— MHz
f =
— MHz
(f++f)/2 =
2870 MHz ✓
Splitting =
— MHz

Magnetometry Readout
B = (f+ − f) / (2 × 28 MHz/mT)
mT
Center frequency = D = 2870 MHz for ALL B.
The two dips move symmetrically outward — the midpoint is always fixed at D.
At B=0 the dips merge into one.

Spin Level Diagram