论文标题
在光学纳米纤维附近的高强度电场中的rubidium原子光谱线形
Rubidium atom spectral lineshapes in high intensity electric fields near an optical nanofibre
论文作者
论文摘要
冷原子系统与光学纳米纤维的整合是一个越来越重要的实验平台。在这里，我们报告了在光学纳米纤维附近的冷rubium原子的强驱动，单频的两光子激发中观察到的光谱。在共鸣中，需要考虑两个竞争过程，即较高的激发率和由于共振散射引起的纳米纤维的强烈推动。我们讨论导致荧光光谱中观察到的两峰曲线的过程，因为激发激光在共振上扫描，并指出光学纳米纤维的存在极大地改变了荧光信号。这些观察结果对于需要ONF附近的高电场强度（例如在驱动非线性过程时）很有用。
The integration of cold atomic systems with optical nanofibres is an increasingly important experimental platform. Here, we report on the spectra observed during a strongly driven, single-frequency, two-photon excitation of cold rubidium atoms near an optical nanofibre. At resonance, two competitive processes, namely a higher excitation rate and stronger pushing of atoms from the nanofibre due to resonance scattering, need to be considered. We discuss the processes that lead to the observed two-peak profile in the fluorescence spectrum as the excitation laser is scanned across the resonance, noting that the presence of the optical nanofibre dramatically changes the fluorescence signal. These observations are useful for experiments where high electric field intensities near an ONF are needed, for example when driving nonlinear processes.
