论文标题
使用高角度动量rydberg状态的非常高和超高的频率电场检测
Very-high- and ultrahigh- frequency electric field detection using high angular momentum Rydberg states
论文作者
论文摘要
我们使用电磁诱导的透明度来测量轨道角动量$ L = 3 \ rightarrow l'= 4 $ rydberg transitions，证明了从240 MHz到900 MHz（非常高的频率（VHF）到超高频率（UHF））的RF电场的共振检测。这些Rydberg状态可通过三光红外光激发访问。通过共同检测到电力小型制度中的RF，这些状态使一类新的原子接收器能够。我们发现，测量光谱和对原理量子数的量子缺陷理论的预测之间的良好一致性$ n = 45 $至$ 70 $。使用超级摩托车检测设置，我们在$ n = 50 $上测量$ n = 50 $的$ 13 \，\ mathrm {μv/m/m/\ sqrt {hz}} $。此外，我们利用数据和包含五级主方程解决方案的数值模型来估计系统的基本灵敏度限制。
We demonstrate resonant detection of rf electric fields from 240 MHz to 900 MHz (very-high-frequency (VHF) to ultra-high-frequency (UHF)) using electromagnetically induced transparency to measure orbital angular momentum $L=3\rightarrow L'=4$ Rydberg transitions. These Rydberg states are accessible with three-photon infrared optical excitation. By resonantly detecting rf in the electrically small regime, these states enable a new class of atomic receivers. We find good agreement between measured spectra and predictions of quantum defect theory for principal quantum numbers $n=45$ to $70$. Using a super-hetrodyne detection setup, we measure the noise floor at $n=50$ to be $13\,\mathrm{μV/m/\sqrt{Hz}}$. Additionally, we utilize data and a numerical model incorporating a five-level master equation solution to estimate the fundamental sensitivity limits of our system.
