Wavelength-modulated coherence pumping and hyperfine repumping for an atomic magnetometer
AssigneesThe Regents of the University of California, Southwest Sciences Incorporated
InventorsDavid Christian Hovde, Dmitry Budker, Brian Patton
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Abstract
An FM-NMOR magnetometer and concomitant magnetometry method comprising providing a linearly-polarized pump beam generator, employing a center wavelength approximately equal to a center wavelength of hyperfine peaks, and employing a modulation amplitude in the range HFS-3×LW to HFS.
Claims16
An FM-NMOR magnetometer comprising a linearly-polarized pump beam generator generating a center wavelength approximately equal to a center wavelength of hyperfine peaks and generating a modulation amplitude in the range HFS-3×LW (Hyperfine Splitting interval minus three times Line Width) to HFS (Hyperfine Splitting interval) with respect to atoms in an atomic vapor cell through which an output of said beam generator passes, wherein a modulation frequency of said beam generator is determined from a magnetic field measured by said magnetometer.
An FM-NMOR magnetometry method comprising providing a linearly-polarized pump beam generator, generating a center wavelength approximately equal to a center wavelength of hyperfine peaks, and generating a modulation amplitude in the range HFS-3×LW (Hyperfine Splitting interval minus three times Line Width) to HFS (Hyperfine Splitting interval) with respect to atoms in an atomic vapor cell through which an output of the beam generator passes, wherein a modulation frequency of the beam generator is determined from a measured magnetic field.
Dependencies are inferred from the claim text.