Radio-frequency magnetometry using a single electron spin
arXiv:1210.1443 · doi:10.1103/PhysRevLett.110.017602
Abstract
We experimentally demonstrate a simple and robust protocol for the detection of weak radio-frequency magnetic fields using a single electron spin in diamond. Our method relies on spin locking, where the Rabi frequency of the spin is adjusted to match the MHz signal frequency. In a proof-of-principle experiment we detect a 7.5 MHz magnetic probe field of 40 nT amplitude with <10 kHz spectral resolution over a T_1-limited noise floor of 0.3 nT/rtHz. Rotating-frame magnetometry may provide a direct and sensitive route to high-resolution spectroscopy of nanoscale nuclear spin signals.
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- Optimal control of fast and high-fidelity quantum gates with electron and nuclear spins of a nitrogen-vacancy center in diamond
- High resolution quantum sensing with shaped control pulses
- Relaxation, decoherence and steady-state population inversion in qubits doubly dressed by microwave and radiofrequency fields
- Continuously observing a dynamically decoupled spin-1 quantum gas
- Decay of the rotary echoes for the spin of a nitrogen-vacancy center in diamond
- Detecting magnetic fields using Nitrogen-Vacancy Centers
- A nitrogen-vacancy spin based molecular structure microscope using multiplexed projection reconstruction
- Sensing phase-transitions via nitrogen-vacancy centers in diamond