利用反冲共振诊断束缚和自由原子：工作MOT中的一维光晶格
Bound and free atoms diagnosed by the recoil-induced resonances: 1D optical lattice in a working MOT
摘要：
本文报道了$^{85}$ Rb原子在磁光阱和一维光晶格中的同时囚禁研究。使用拉曼泵浦-探测光谱，我们观察到两个原子部分的共存：第一，它包括自由的，未绑定的原子被困在MOT和第二，本地化的微势的光晶格。我们表明，反冲引起的共振不仅允许温度测定的原子云，但与振动共振一起，也可以用于实时，无损研究的晶格负载和系统的动态，包括未绑定和绑定的原子分数。
英文摘要：
We report on studies of simultaneous trapping of $^{85}$Rb atoms in a magneto-optical trap (MOT) and 1D optical lattice. Using Raman pump-probe spectroscopy we observe the coexistence of two atomic fractions: the first, which consists of free, unbound atoms trapped in a MOT and the second, localized in the micropotentials of the optical lattice. We show that recoil-induced resonances allow not only temperature determination of the atomic cloud but, together with vibrational resonances, can also be used for real-time, nondestructive studies of the lattice loading and of the dynamics of systems comprising unbound and bound atomic fractions.
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