A Bell-Bloom FID rubidium magnetometer with counter-propagating orthogonal pumps and five-pass probe detection reaches 3.1 pT/√Hz sensitivity, six times better than the standard single-beam single-pass design.
A high-precision frequency measurement algorithm for FID signal of proton magnetometer
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The Bell-Bloom-type optically-pumped FID Rubidium atomic magnetometer with a multi-passing probe beam and two counter-propagating pump beams
A Bell-Bloom FID rubidium magnetometer with counter-propagating orthogonal pumps and five-pass probe detection reaches 3.1 pT/√Hz sensitivity, six times better than the standard single-beam single-pass design.