Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4803684
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Funding
- Spanish MINECO under the project MAGO [FIS2011-23520]
- European Research Council project AQUMET
- Fundacio Privada Cellex
- ICREA Funding Source: Custom
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We demonstrate a fast three-axis optical magnetometer using cold, optically trapped Rb-87 gas as a sensor. By near-resonant Faraday rotation we record the free-induction decay of a spin polarized ensemble following optical to obtain the three field components and one gradient component. A single measurement achieves shot-noise limited sub-nT sensitivity in 1 ms, with transverse spatial resolution of similar to 20 mu m. We make a detailed analysis of the shot-noise-limited sensitivity. (C) 2013 AIP Publishing LLC.
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