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Enhancement of polarization by off-resonant spin exchange optical pumping
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View: Figures


Image of FIG. 1.
FIG. 1.

Typical NMR data for a valved cell at 1.59 amagat at with 38 W incident on the cell, each measurement is ten averages with 10 s delay between each average, inset is a typical averaged FID obtained from this measurement.

Image of FIG. 2.
FIG. 2.

(a) Comparison of the bare diode spectral profile before and after narrowing using the external cavity. In both cases, the diode was driven at 110 A and integrated intensities are shown normalized to output power. (b) Spectral output of narrowed laser as a function of power (current), offset for clarity, and (c) absorption data for the line, measured using a lamp and monochromator.

Image of FIG. 3.
FIG. 3.

NMR data for various temperatures and gas densities as indicated in the figure. All measurements at 38 W except where noted. The vertical dashed line indicates the center of the absorption as measured.

Image of FIG. 4.
FIG. 4.

Power dependence of for 1.59 amagat at various temperatures and wavelengths (as indicated).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhancement of X129e polarization by off-resonant spin exchange optical pumping