Highly sensitive photoassociation spectroscopy of ultracold ~(23)Na~(133)Cs molecular long-range states below the 3S_(1/2)+6P_(3/2)limit |
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| Institution: | 1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
2. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China |
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| Abstract: | We present high resolution photoassociation spectroscopy of ultracold 23Na133Cs molecules in a long-range c3∑+ state below the (3S1/2 + 6P3/2) asymptote. We perform photoassociation spectroscopy in a dual-species magneto-optical trap (MOT) and detect the photoassociation resonances using trap-loss spectroscopy. By fitting the experimental data with the semi-classical LeRoy-Bernstein formula, we deduce the long-range molecular coefficient C6 and derive the empirical potential energy curve in the long-range region. |
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| Keywords: | ultracold molecule photoassociation high-resolution spectroscopy C6 coefficient |
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