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US 10,852,371 B2Granted
Pulsed scalar atomic magnetometer
AssigneeThe Trustees of Princeton University
InventorsMichael Romalis, Haifeng Dong, Andrei Baranga
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Abstract
Disclosed is a method and apparatus relating generally to scalar atomic magnetometers. The disclosed methods and apparatus utilize a pressurized sample chamber and a high frequency pulsed pump laser to increase spin polarization and significantly suppress heading errors. These methods and apparatus may also include alternating polarization of the pump light between pulses.
Claims18
A magnetometer, comprising:
- a sample chamber;
- a sample medium within the sample chamber, the sample medium comprising an alkali metal vapor and a quenching gas at a pressure greater than 100 torr that enables spin polarization of alkali metal atoms to be greater than or equal to a predetermined level;
- and
- a pump laser having output directed towards the sample chamber, the laser having an intensity sufficiently high to polarize to a predetermined level in a period of time shorter than the Larmor precession period.
1 more element
Dependencies are inferred from the claim text.