3 papers
physics.atom-ph2021
Heading errors in all-optical alkali-vapor magnetometers in geomagnetic fields
W. Lee, V. G. Lucivero, M. V. Romalis +3
Alkali-metal atomic magnetometers suffer from heading errors in geomagnetic fields as the measured magnetic field depends on the orientation of the sensor with respect to the field…
physics.atom-ph2020
Femtotesla direct magnetic gradiometer using a single multipass cell
V. G. Lucivero, W. Lee, N. Dural +1
We describe a direct gradiometer using optical pumping with opposite circular polarization in two Rb atomic ensembles within a single multipass cell. A far-detuned probe las…
physics.med-ph2020
Portable magnetometry for detection of biomagnetism in ambient environments
M. E. Limes, E. L. Foley, T. W. Kornack +6
We present a method of optical magnetometry with parts-per-billion resolution that is able to detect biomagnetic signals generated from the human brain and heart in Earth's ambient…