Laser threshold magnetometry with NV centers achieves 100% optical contrast, photon-shot-noise-limited sensitivity below 400 fT/√Hz for all vector components, and up to 590-fold improvement in the sensitivity-dynamic range product over conventional sensors.
Elzenheimer,et al., Key Metrics and Experimental Test Bench for Assessing Highly Sensi- tive Magnetometers in Research.IEEE Sens
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Laser-enhanced quantum sensing boosts sensitivity and dynamic range
Laser threshold magnetometry with NV centers achieves 100% optical contrast, photon-shot-noise-limited sensitivity below 400 fT/√Hz for all vector components, and up to 590-fold improvement in the sensitivity-dynamic range product over conventional sensors.