论文标题
两光子与三光子rydberg电视的敏感性比较
Sensitivity Comparison of Two-photon vs Three-photon Rydberg Electrometry
论文作者
论文摘要
我们研究了Rydberg原子中三光子EIT对射频检测的敏感性，并将其与常规的两光子系统进行比较。具体而言，我们对4级和5级原子系统进行建模，并比较探针的传播如何随使用激光的不同力量和RF场的强度而变化。在此模型中，我们还定义了一个灵敏度度量，以最佳地与基于射击噪声有限检测的当前最佳实验实现的操作有关。我们发现，与传统的两光子EIT相比，三光系统具有较窄的线宽度。但是，这些狭窄的线路特征与最佳灵敏度的区域不符。除此之外，我们还计算了两光子Rydberg传感器的预期灵敏度，并发现最佳可实现的灵敏度比当前的5 UV/m/m/hz的当前测量值要好得多。但是，通过考虑实验中的其他噪声源和光探测器的量子效率，值良好。
We investigate the sensitivity of three-photon EIT in Rydberg atoms to radio frequency detection and compare it against conventional two-photon systems. Specifically, we model the 4-level and 5-level atomic system and compare how the transmission of the probe changes with different powers of the lasers used and strengths of the RF field. In this model, we also define a sensitivity metric to best relate to the operation of the current best experimental implementation based on shot noise limited detection. We find that the three-photon system boasts much narrower line widths compared to the conventional two-photon EIT. However, these narrow line features do not align with the regions of the best sensitivity. In addition to this, we calculate the expected sensitivity for the two-photon Rydberg sensor and find that the best achievable sensitivity is over an order of magnitude better than the current measured values of 5 uV/m/Hz. However, by accounting for the additional noise sources in the experiment and the quantum efficiency of the photo-detectors, the values are in good agreement.
