论文标题

SROH几乎关闭的快速光子循环的振动分支比率

Vibronic branching ratios for nearly-closed rapid photon cycling of SrOH

论文作者

Lasner, Zack, Lunstad, Annika, Zhang, Chaoqun, Cheng, Lan, Doyle, John M.

论文摘要

辐射衰变与地面电子状态的SROH的振动分支比率是$ x^{2}σ^{+} $,从前两个电子激发状态,$ a^{2}π$和$ a^{2}π$和$ b^{2}σ^{+} $在实验上确定为$ \ sim10^^^l necimiments $ sim10^^^l clacitiments。观察到的小分支比例可以设计出完整的实用激光冷却方案,包括磁光诱捕和子多普勒激光冷却,每个分子的$> 10^4 $光子散射。对弱振动转变敏感的概念计算是为了促进实验测量和分析,并与实验显示了良好的一致性。

The vibrational branching ratios of SrOH for radiative decay to the ground electronic state, $X^{2}Σ^{+}$, from the first two electronically excited states, $A^{2}Π$ and $B^{2}Σ^{+}$, are determined experimentally at the $\sim10^{-5}$ level. The observed small branching ratios enable the design of a full, practical laser-cooling scheme, including magneto-optical trapping and sub-Doppler laser cooling, with $>10^4$ photon scatters per molecule. Ab initio calculations sensitive to weak vibronic transitions are performed to facilitate the experimental measurement and analysis, and show good agreement with experiment.

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