Microfabricated Optically-Pumped Magnetometers for Biomagnetic Applications. (June 2016)

• Record Type: Journal Article
• Authors: Knappe, Svenja; Alem, Orang; Sheng, Dong; Kitching, John
• Is Part Of: Journal of physics. Volume 723(2016)
• Publication Date: 2016-06
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/723/1/012055
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: 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 magnetometers reach noise values below 15 fT/Hz 1/2 . Recently, we have also developed gradiometers to reject ambient magnetic field noise. We have built several imaging arrays and validated them for biomedical measurements of brain and heart activity.