Optics Express

On-site monitoring of atomic density number for an all-optical atomic magnetometer based on atomic spin exchange relaxation

Hong Zhang, Sheng Zou, Xiyuan Chen, Ming Ding, Guangcun Shan, Zhaohui Hu, Wei Quan

Published Jul 21, 2016• 21 citations

Abstract

We present a method for monitoring the atomic density number on site based on atomic spin exchange relaxation. When the spin polarization P ≪ 1, the atomic density numbers could be estimated by measuring magnetic resonance linewidth in an applied DC magnetic field by using an all-optical atomic magnetometer. The density measurement results showed that the experimental results the theoretical predictions had a good consistency in the investigated temperature range from 413 K to 463 K, while, the experimental results were approximately 1.5 ∼ 2 times less than the theoretical predictions estimated from the saturated vapor pressure curve. These deviations were mainly induced by the radiative heat transfer efficiency, which inevitably leaded to a lower temperature in cell than the setting temperature.

DOI: 10.1364/oe.24.017234

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