Research Papers in Physics and Astronomy


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Published in PHYSICAL REVIEW A 75, 023401 (2007). Copyright ©2007 The American Physical Society. Used by permission.


We have made a systematic study of rubidium optical pumping in a simple cylindrical cell geometry with a high-power 10 W diode laser array, low magnetic fields, and buffer-gas pressures of less than 50 torr. We have determined rubidium polarizations experimentally for H2, N2, He, and Ar buffer gases, with Rb number densities from 1012 to 1013 cm-3. Comparison to a relatively simple optical pumping model allows us to extract useful information about radiation trapping and quenching effects.

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