Microfabricated Optically-Pumped Magnetometers for Biomagnetic Applications
Svenja A. Knappe, John E. Kitching, Orang Alem, Dong Sheng
We report on the progress in developing microfabricated optically-pumped magnetometer arrays for imaging applications. We have improved our sensitivities by several orders of magnitude in the last ten years, Now, our zero-field sensors reach values below 15 fT/Hz1/2 for both magnetometers and gradiometers. We have built several imaging arrays and validated them for biomedical measurements of brain and heart activity.
Proceeding of the Frequency Standards and Metrology Conference (Journal of Physics: Conference Series (JPCS)