Photoassociative Production and Detection of Ultracold Polar RbCs Molecules
Photoassociative Production and Detection of Ultracold Polar RbCs Molecules
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DOI：
10.1088/0256-307x/28/8/083701
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发表时间：
2011-07
影响因子：
3.5
通讯作者：
J. Zhonghua;Zhang Hong-Shan;Wu Jizhou;Yuan Jinpeng;Zhao Yan-ting;Ma Jie;W. Lirong;Xiao Lian-tuan;Jia Suo-tang
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文献类型：
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作者：
J. Zhonghua;Zhang Hong-Shan;Wu Jizhou;Yuan Jinpeng;Zhao Yan-ting;Ma Jie;W. Lirong;Xiao Lian-tuan;Jia Suo-tang
我们从双物种强制暗磁光陷阱中的激光冷却 85Rb 和 133Cs 原子开始，通过光缔合产生了超冷极性 RbCs 分子。通过陷阱损失光谱观察形成的电子激发的 RbCs* 分子与 Rb(5S1/2) + Cs(6P1/2) 解离极限相关。随着这些激发的RbCs*分子的衰变，形成的基态分子被双光子单色脉冲染料激光直接电离，这是基态RbCs分子的一种新的电离机制，从而被飞行时间质谱检测到。
We have produced ultracold polar RbCs molecules via photoassociation starting from laser-cooled 85Rb and 133Cs atoms in a dual-species, forced dark magneto-optical trap. The formed electronically excited RbCs* molecules correlated to the Rb(5S1/2) + Cs(6P1/2) dissociation limit are observed by trap loss spectroscopy. Following the decay of these excited RbCs* molecules, the formed ground state molecules are directly ionized by a two-photon single-color pulse dye laser, which is a new ionization mechanism for ground state RbCs molecules and thence detected by time-of-flight mass spectroscopy.