Diode laser-pumped magnetometer
Patent 6472869 Issued on October 29, 2002. Estimated Expiration Date: 
June 18, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 18, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3750008 Laser-pumped helium magnetometer Resonance magnetometer with optical pumping using a monolithic laser Resonance magnetometer with optical pumping using a monolithic laser Laser pumped magnetometer Patent #: 5602475 InventorsAssigneeApplicationNo. 883166 filed on 06/18/2001US Classes:324/304, Using optical pumping or sensing device324/300, PARTICLE PRECESSION RESONANCE324/301Using a magnetometerExaminersPrimary: Lefkowitz, EdwardAssistant: Shrivastav, Brij B. Attorney, Agent or FirmInternational ClassG01V 003/00AbstractA diode laser-pumped magnetometer includes a diode laser that emits a polarized pumping laser beam with resonant optical radiation; and a K-cell through which a magnetic field is manifested from an independent source, the K-cell containing atoms with a dipole experiencing a torque due to the magnetic field. The atoms are excited by the resonant optical radiation of the pumping laser beam and periodically emitting a response radiation as they return to ground state such that the response radiation includes photons that indicate one unit of angular momentum indicative of the torque due to the magnetic field. Finally, a photodetector serves as a means for measuring the response radiation of the K-cell to indicate thereby a measure of the magnetic field in the K-cell from the independent magnetic source. | |
