论文标题
使用钠荧光和两光子共振光场的同步调制的磁力测定法
Magnetometry using sodium fluorescence with synchronous modulation of two-photon resonant light fields
论文作者
论文摘要
我们报告了一种新技术，用于通过两光子共振光场的同步调制产生磁共振。测量来自钠电池的荧光中的磁共振，以证明该技术对于远程磁力测定法的适用性。在存在横向磁场的情况下，产生与Larmor频率相对应的倾角的强磁共振。观察到3 \ {Omega_l}处的附加共振，可用于确定磁场方向。我们已经基于密度矩阵方程开发了一个理论模型，以验证我们的实验观察结果。 41 \ mathbf {pt}/\ sqrt {\ mathbf {hz}}的平均磁场灵敏度的平均磁场灵敏度是使用范围从35％到10％的轻型周期来测量的。我们已经讨论了可以进一步提高该方案的敏感性的可能更改。
We report a new technique for generating magnetic resonance with synchronous modulation of two-photon resonant light fields. Magnetic resonances in fluorescence from a sodium cell are measured to demonstrate suitability of this technique for remote magnetometry. A strong magnetic resonance with its dip corresponding to the Larmor frequency is produced in the presence of a transverse magnetic field. An additional resonance at 3\{Omega_L} is observed, which can be used to determine the magnetic field orientation. We have developed a theoretical model based on the density matrix equations to verify our experimental observations. An average magnetic field sensitivity of 41 \mathbf{pT}/\sqrt{\mathbf{Hz}} is measured using light duty cycles ranging from 35% to 10%. We have discussed possible changes that can be made to improve the sensitivity of this scheme further.
