Li Lihang, Wang Hongyan, Hua Weihong, Ning Yu, Xu Xiaojun
Opt Lett. 2016 Sep 1;41(17):4103-5. doi: 10.1364/OL.41.004103.
By using the return flux enhancement factor due to repumping, the spin-damping time of mesospheric sodium can be estimated. Because the absolute return photon number does not need to be measured, this method is independent of sodium abundance. An example of how to find the spin-damping time using this method is given. As a result, it is shown that this method is sensitive and has the potential to improve the precision of the spin-damping time estimations of mesospheric sodium. Finally, the impact of the geomagnetic field on this method is analyzed.
通过使用再泵浦引起的返回通量增强因子，可以估算中层钠的自旋阻尼时间。由于无需测量绝对返回光子数，该方法与钠丰度无关。给出了一个如何使用该方法找到自旋阻尼时间的示例。结果表明，该方法具有敏感性，并且有潜力提高中层钠自旋阻尼时间估计的精度。最后，分析了地磁场对该方法的影响。
