论文标题
光学抽水对Rydberg EIT光谱的影响
Optical pumping effects on the Rydberg EIT spectrum
论文作者
论文摘要
我们对Rydberg-State电磁诱导的透明度（EIT）和光泵（OP）在热RB87培养基中的相互作用进行了普遍讨论。通过将种群泵入一个单一的超精细/采符状态，我们可以增强相互作用强度，并原则上扩大EIT峰。根据我们的测量值，EIT峰高的高度可以提高2倍，也可以减少一个数量级，而线宽则通过泵送效应稍微缩小。通过增加培养基的光密度（OD）也可以看到类似的行为。使用无多普勒非扰动数值计算进行定量预测EIT特征。在有或没有光泵场的情况下，EIT峰高塌陷到相同的理论曲线上，表明OP和变化的OD具有相同的效果。在模拟和测量中，Rydberg EIT通过OP增强取决于探针场和OD的强度。我们的工作阐明了光学泵送的基本机制和进步Rydberg-atom研究。
We provide a universal discussion of the interplay between Rydberg-state electromagnetically induced transparency (EIT) and optical pumping (OP) in a thermal Rb87 medium. By pumping the population to one single Hyperfine/Zeeman state, we can enhance the interaction strength and, in principle, amplify the EIT peak. According to our measurements, the EIT peak height can be improved by a factor of two or reduced by one order of magnitude, and linewidth was slightly narrowed by the pumping effect. Similar behavior is also seen by increasing the optical density (OD) of the medium. The EIT feature is predicted quantitatively using a Doppler-free non-perturbation numerical calculation. With and without the optical pumping field, the EIT peak heights collapse onto the same theoretical curve, showing that OP and varying OD have the same effect. In both simulations and measurements, Rydberg EIT enhancement through OP is dependent on the intensity of the probe field and the OD. Our work clarifies the underlying mechanisms of optical pumping and advances Rydberg-atom research.
