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Broadband magnetometry by infrared-absorption detection of diamond NV centers
Broadband magnetometry infrared-absorption detection
2010/10/27
We demonstrate magnetometry by detection of the spin state of high-density nitrogenvacancy
(NV) ensembles in diamond using optical absorption at 1042 nm. With this technique,
measurement contrast an...
Magnetometry of random AC magnetic fields using a single Nitrogen-Vacancy center
Magnetometry random AC magnetic fields single Nitrogen-Vacancy center
2010/10/21
We report on the use of a single NV center to probe fluctuating AC magnetic fields. Using engineered currents to induce random changes in the field amplitude and phase, we show that stochastic fluctua...
Quantum limit of optical magnetometry in the presence of ac-Stark shifts
Quantum limit optical magnetometry presence ac-Stark shifts
2010/10/15
We analyze systematic (classical) and fundamental (quantum)limitations of the sensitivity of optical magnetometers resulting from ac-Stark shifts. We show that in contrast to absorption-based techniqu...