Demonstration of diamond nuclear spin gyroscope

We demonstrate the operation of a rotation sensor based on the nitrogen-14(N-14) nuclear spins intrinsic to nitrogen-vacancy (NV) color centers in diamond. The sensor uses optical polarization and readout of the nuclei and a radio-frequency double-quantum pulse protocol that monitors N-14 nuclear spin precession. This measurement protocol suppresses the sensitivity to temperature variations in the N-14 quadrupole splitting, and it does not require microwave pulses resonant with the NV electron spin transitions. The device was tested on a rotation platform and demonstrated a sensitivity of 4.7 degrees/root s (13 mHz/root Hz), with a bias stability of 0.4 degrees/s (1.1 mHz).

Automated summary

A rotation sensor based on N-14 nuclear spins intrinsic to NV color centers in diamond was demonstrated, showing high sensitivity and stability through optical polarization and radio-frequency pulse protocol. The device does not require microwave pulses resonant with NV electron spin transitions and achieved a sensitivity of 4.7 degrees/root s with a bias stability of 0.4 degrees/s.