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 3. College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, China
The light-induced frequency shift (LIFS) of ultracold molecular ro-vibrational levels originates from the strong coupling of the atomic-scattering state and the bound-molecular state. In this paper, we present our experimental determination of the LIFSs of the lowest vibrational levels (ν= 0, 1) in the purely long-range state of ultracold cesium molecules. A high-resolution double photoassociation spectroscopy is developed, which serves as frequency ruler to measure the frequency shifts of the lowest molecular levels for Cs2. The experimental results are qualitatively consistent with the theoretical expectations.
. [J]. Frontiers of Physics, 2020, 15(2): 22602.
Ji-Zhou Wu, Yu-Qing Li, Wen-Liang Liu, Jie Ma, Lian-Tuan Xiao, Suo-Tang Jia. Light-induced frequency shifts for the lowest vibrational levels of ultracold Cs2 in the molecular pure long-range state. Front. Phys. , 2020, 15(2): 22602.
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