论文标题
在激光模式下确定明亮与深色原子状态的因素之间的竞争
Competition between Factors Determining Bright versus Dark Atomic States within a Laser Mode
论文作者
论文摘要
当激光激发在磁场的存在下发生时，我们观察到来自快速原子束中原子中的双峰荧光图案，而原子仅采样了激光谱的一部分。激光的局部强度之间的竞争可以很好地解释这种行为。这项工作与使用这些过渡的时钟或其他相干系统的检测过程有关，并且可以适用于激光 - 原子相互作用的原位校准，例如磁场的强度或在特定位置的激光强度。
We observe bimodal fluorescence patterns from atoms in a fast atomic beam when the laser excitation occurs in the presence of a magnetic field and the atoms sample only a portion of the laser profile. The behavior is well explained by competition between the local intensity of the laser, which tends to generate a coherent-population-trapping (CPT) dark state in the $J=1$ to $J'=0$ system, and the strength of an applied magnetic field that can frustrate the CPT process. This work is relevant for understanding and optimizing the detection process for clocks or other coherent systems utilizing these transitions and could be applicable to in situ calibration of the laser-atom interaction, such as the strength of the magnetic field or laser intensity at a specific location.
