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Portable Magnetometry for Detection of Biomagnetism in Ambient Environments

2020; American Physical Society; Volume: 14; Issue: 1 Linguagem: Inglês

10.1103/physrevapplied.14.011002

2331-7043

Mark Limes, E. L. Foley, T. W. Kornack, S. Caliga, Sterling E. McBride, A. Braun, W. Lee, Vito Giovanni Lucivero, Michael Romalis,

Advanced MRI Techniques and Applications

The authors report a striking advance in measuring tiny magnetic fields under ambient conditions, using atom--light-interaction techniques enabled by cutting-edge technology. A prototype sensor detects the magnetic fields generated by the human brain or heart, in a field-deployable system that works with great sensitivity, unshielded in Earth's own magnetic field. This technology is scalable to arrays and can be made low-cost, which opens pathways to a wide variety of applications, such as field triage, brain-machine interfaces, and magnetic navigation.