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Parametric modulation of an atomic magnetometer
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10.1063/1.2357553
/content/aip/journal/apl/89/13/10.1063/1.2357553
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357553
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Elevated magnetic field spectral noise density due to air noise in dc mode and its suppression in Z1 mode.

Image of FIG. 2.
FIG. 2.

Measured Z1-mode sensitivity as a function of normalized modulation field amplitude , showing comparison with the approximate theoretical response function [Eq. (3) ]. The inset depicts the spin dynamics for a -mode magnetometer. An applied magnetic signal, , rotates the spin polarization into the plane. The oscillating -field ( -modulation) causes the spin to oscillate along an arc. Maximum sensitivity to is achieved by adjusting to make the arc approximately semicircular. Notice that the polarization oscillates at frequency and the polarization oscillates at .

Image of FIG. 3.
FIG. 3.

Magnetic field spectral density in the nonoptimized Z1 mode and Z2 mode for simultaneous measurement of the residual and magnetic fields inside our MSR. The modulation field has a frequency of and a peak-to-peak amplitude of .

Image of FIG. 4.
FIG. 4.

Magnetic field spectral density in Z1 mode after optimization of the probe beam. The inset shows the frequency response.

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/content/aip/journal/apl/89/13/10.1063/1.2357553
2006-09-27
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Parametric modulation of an atomic magnetometer
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2357553
10.1063/1.2357553
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