在磁光阱中的铯原子由于冷却光的存在将被缀饰化。借助于波长为852.3 nm(对应于铯原子6S1/2F=4→6P3/2F′=3和6S1/2F=4→6P3/2F′=4超精细跃迁)和794.6 nm(对应于铯原子6P3/2F′=5→8S1/2F″=4超精细跃迁)的探测光的透射光谱分别对磁光阱中冷原子基态6S1/2F=4和激发态6P3/2F′=5在冷却光作用下形成的缀饰态分裂进行了实验研究, 并分析了其光谱特性。结果表明, 在冷却光强度、失谐量相同的实验条件下, 基态、激发态的缀饰分裂间距相同, 与缀饰态理论预言一致。

Due to the strong cooling laser, the cesium cold atoms trapped in a magneto-optical trap are dressed. The dressed splitting was observed arising from cooling laser for the ground state 6S1/2 F=4 and excited state 6P3/2 F′=5 using the probe laser with the wavelengths of 852.3 nm (corresponding to the transitions of 6S1/2 F=4→6P3/2 F′=3 and 6S1/2 F=4→6P3/2 F′=4 of cesium atom) and 794.6 nm (corresponding to the transition of 6P3/2 F′=5 and 8S1/2 F″=4 of cesium atom), respectively, and their spectral properties were analysed. The results show that the dressed splitting for the ground state 6S1/2 F=4 is the same with that for the excited state 6P3/2 F′=5 for the same intensity and detuning of cooling laser, which is consistent with the prediction based on the dressed state theory.