Abstract
Measurements were made to determine the density of rubidium dimer vapor in paraffin-coated cells. The number density of dimers and atoms in similar paraffin-coated and uncoated cells was measured by optical spectroscopy. Due to the relatively low melting point of paraffin, a limited temperature range of 43–80 °C was explored, with the lower end corresponding to a dimer density of less than 107 cm− 3. With 1 min integration time, a sensitivity to dimer number density of better than 106 cm− 3 was achieved. No significant difference in dimer density between the cells was observed.
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