MRI AND MEG DETECTION WITH A SINGLE OPTICALLY PUMPED MAGNETOMETER

Systems for MRI and MEG detection with a single optically pumped magnetometer are provided herein. In one example, a system comprises a chip-scale device including a RF atomic magnetometer, which includes a laser configured to emit laser light, a photodetector, a vapor cell between the laser and pho...

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Bibliographic Details
Main Authors Salit, Mary, Salit, Kenneth, Dellis, Argyrios
Format Patent
LanguageEnglish
Published 01.08.2024
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:Systems for MRI and MEG detection with a single optically pumped magnetometer are provided herein. In one example, a system comprises a chip-scale device including a RF atomic magnetometer, which includes a laser configured to emit laser light, a photodetector, a vapor cell between the laser and photodetector, and a circular polarizer configured to circularly polarize the laser light emitted by the laser. A circularly polarized laser beam is configured to pump into an oriented state, spins of atoms in the vapor cell and to probe the atoms in the vapor cell, wherein probing includes detecting a local RF field. The chip-scale device further includes flux transformer coil(s) configured to couple RF signals from a source to the RF atomic magnetometer and DC coil(s) configured to generate a DC magnetic field oriented at 45 degrees relative to an optical axis of the laser light emitted by the laser.
Bibliography:Application Number: US202318508084