Li Wenfang, Du Jinjin, Lam Mark, Li Wenhui
Opt Lett. 2022 Sep 1;47(17):4399-4402. doi: 10.1364/OL.469443.
We study telecom-wavelength spectra of a Rydberg state in an atomic vapor with a three-photon excitation scheme. Two lasers of 780 nm and 776 nm are used to pump rubidium-85 atoms in a vapor cell to the 5D state, from which a probe beam of 1292 nm in the O-band telecommunication wavelength drives a transition to the 21F Rydberg state. We investigate the probe spectra over the power of pump lasers. The simulation based on a 4-level theoretical model captures the main features of the experimental results. This spectroscopic study paves the way for future experiments of making a direct link between fiber optics and radio transmission via Rydberg atoms.
我们采用三光子激发方案研究了原子蒸汽中里德堡态的电信波长光谱。使用780纳米和776纳米的两台激光器将蒸汽室中的铷-85原子泵浦到5D态，然后O波段电信波长的1292纳米探测光束驱动其跃迁到21F里德堡态。我们研究了探测光谱随泵浦激光功率的变化。基于四能级理论模型的模拟捕捉到了实验结果的主要特征。这项光谱学研究为未来通过里德堡原子在光纤光学和无线电传输之间建立直接联系的实验铺平了道路。
