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arXiv 0706.0104physics.atom-ph
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双共振校准磁力仪的灵敏度

Sensitivity of double resonance alignment magnetometers

G. Di Domenico, H. Saudan, G. Bison, P. Knowles, A. Weis

摘要:

我们提出了一个实验研究的内在的磁力灵敏度的光学/射频双共振磁力仪中,线偏振激光用于光泵浦和检测过程。我们表明,一个半经验模型的磁力计可以用来描述的磁共振谱。然后,我们提出了一种有效的方法来预测磁强计的最佳工作点,即,光功率和rfRabi频率提供最大的磁力灵敏度。最后,我们应用该方法研究了最佳工作点随温度的演化。该方法是非常有效的,以确定弛豫率,从而使我们能够确定三个碰撞错位截面的组件的对齐张量。来自磁力计的第一和第二谐波信号被考虑和比较。

英文摘要:

We present an experimental study of the intrinsic magnetometric sensitivity of an optical/rf-frequency double resonance magnetometer in which linearly polarized laser light is used in the optical pumping and detection processes. We show that a semi-empirical model of the magnetometer can be used to describe the magnetic resonance spectra. Then, we present an efficient method to predict the optimum operating point of the magnetometer, i.e., the light power and rf Rabi frequency providing maximum magnetometric sensitivity. Finally, we apply the method to investigate the evolution of the optimum operating point with temperature. The method is very efficient to determine relaxation rates and thus allowed us to determine the three collisional disalignment cross sections for the components of the alignment tensor. Both first and second harmonic signals from the magnetometer are considered and compared.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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