Bevington Patrick, Rajroop Jenelle, Gartman Rafal, Chalupczak Witold
Appl Opt. 2020 Jul 10;59(20):6054-6061. doi: 10.1364/AO.396941.
We explore the role of the linearly polarized probe beam in the radio-frequency atomic magnetometer. Two regimes of coupling of the linearly polarized light to the atomic ensemble, near and off-resonant, are demonstrated and discussed. Our studies cover three types of interaction between the atomic spin system and the linearly polarized beam, i.e., absorptive production of spin polarization, dispersive spin state readout, and nonlinear spin couplings. The work is performed with the outlook of optimization and simplification of magnetometer operation. Operation of a magnetometer with a single beam, generating and probing the atomic orientation, is presented. This single-beam configuration, which combines optical pumping, nonlinear spin couplings, and spin-exchange collisions, creates the option for a portable device with simple instrumentation.
我们探讨了线偏振探测光束在射频原子磁力仪中的作用。展示并讨论了线偏振光与原子系综耦合的两种状态，即近共振和非共振状态。我们的研究涵盖了原子自旋系统与线偏振光束之间的三种相互作用类型，即自旋极化的吸收产生、色散自旋态读出以及非线性自旋耦合。这项工作是在优化和简化磁力仪操作的前景下进行的。介绍了一种使用单光束操作的磁力仪，该光束用于产生和探测原子取向。这种单光束配置结合了光泵浦、非线性自旋耦合和自旋交换碰撞，为具有简单仪器的便携式设备创造了可能性。
