Stevenson I C, Blasing D B, Altaf A, Chen Y P, Elliott D S
School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
J Chem Phys. 2016 Dec 14;145(22):224301. doi: 10.1063/1.4964655.
We report our spectroscopic studies of the d Π state of ultra-cold LiRb using resonantly enhanced multi-photon ionization and depletion spectroscopy with bound-to-bound transitions originating from the metastable a Σ state. We evaluate the potential of this state for use as the intermediate state in a stimulated-Raman-adiabatic-passage transfer scheme from triplet Feshbach LiRb molecules to the X Σ ground state and find that the lowest several vibrational levels possess the requisite overlap with initial and final states, as well as convenient energies. Using depletion measurements, we measured the well depth and spin-orbit splitting. We suggest possible pathways for short-range photoassociation using deeply bound vibrational levels of this electronic state.
我们报告了利用共振增强多光子电离和耗尽光谱技术，对超冷LiRb的d Π态进行的光谱研究，该光谱技术采用了源自亚稳态a Σ态的束缚到束缚跃迁。我们评估了该态作为受激拉曼绝热通道转移方案中从三重态费什巴赫LiRb分子到X Σ基态的中间态的潜力，发现最低的几个振动能级与初始态和终态具有必要的重叠，并且能量合适。通过耗尽测量，我们测量了阱深和自旋轨道分裂。我们提出了利用该电子态的深束缚振动能级进行短程光缔合的可能途径。
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