中国物理B ›› 2017, Vol. 26 ›› Issue (8): 83301-083301.doi: 10.1088/1674-1056/26/8/083301

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Photoassociation spectra of ultracold 85Rb2 molecule in 0u+ long range state near the 5S1/2+5P1/2 asymptote

Guodong Zhao(赵国栋), Dianqiang Su(苏殿强), Zhonghua Ji(姬中华), Tengfei Meng(孟腾飞), Yanting Zhao(赵延霆), Liantuan Xiao(肖连团), Suotang Jia(贾锁堂)   

  1. 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
  • 收稿日期:2017-03-10 修回日期:2017-04-24 出版日期:2017-08-05 发布日期:2017-08-05
  • 通讯作者: Zhonghua Ji E-mail:jzh@sxu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61675120, 11434007, and 61378015), the National Natural Science Foundation of China for Excellent Research Team (Grant No. 61121064), the Shanxi Scholarship Council of China, and the PCSIRT (Grant No. IRT 13076).

Photoassociation spectra of ultracold 85Rb2 molecule in 0u+ long range state near the 5S1/2+5P1/2 asymptote

Guodong Zhao(赵国栋)1,2, Dianqiang Su(苏殿强)1,2, Zhonghua Ji(姬中华)1,2, Tengfei Meng(孟腾飞)1,2, Yanting Zhao(赵延霆)1,2, Liantuan Xiao(肖连团)1,2, Suotang Jia(贾锁堂)1,2   

  1. 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
  • Received:2017-03-10 Revised:2017-04-24 Online:2017-08-05 Published:2017-08-05
  • Contact: Zhonghua Ji E-mail:jzh@sxu.edu.cn
  • About author:0.1088/1674-1056/26/8/
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61675120, 11434007, and 61378015), the National Natural Science Foundation of China for Excellent Research Team (Grant No. 61121064), the Shanxi Scholarship Council of China, and the PCSIRT (Grant No. IRT 13076).

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摘要：

We investigate the high resolution photoassociation spectra of 85Rb2 molecules in 0u+ long range state below the (5S1/2 + 5P1/2) asymptote. The 85Rb atomic samples are trapped in a dark magneto-optical trap (MOT) and prepared in the dark state. With the help of trap loss technique, we obtain considerable photoassociation spectroscopy with rovibrational resolution, some of which have never been observed before. The observed spectrum is fitted by a rigid rotation model, and the rotational constants of ultracold 85Rb2 molecule in long range 0u+ are obtained for different vibrational states. By applying the LeRoy-Bernstein method, we assign the vibrational quantum numbers and derive C3 coefficient, which is used to obtain the potential energy curve.

关键词: photoassociation spectroscopy, ultracold molecule, C3 coefficient

Abstract:

We investigate the high resolution photoassociation spectra of 85Rb2 molecules in 0u+ long range state below the (5S1/2 + 5P1/2) asymptote. The 85Rb atomic samples are trapped in a dark magneto-optical trap (MOT) and prepared in the dark state. With the help of trap loss technique, we obtain considerable photoassociation spectroscopy with rovibrational resolution, some of which have never been observed before. The observed spectrum is fitted by a rigid rotation model, and the rotational constants of ultracold 85Rb2 molecule in long range 0u+ are obtained for different vibrational states. By applying the LeRoy-Bernstein method, we assign the vibrational quantum numbers and derive C3 coefficient, which is used to obtain the potential energy curve.

Key words: photoassociation spectroscopy, ultracold molecule, C3 coefficient

中图分类号:  (Rotation, vibration, and vibration-rotation constants)

  • 33.15.Mt
31.50.Df (Potential energy surfaces for excited electronic states) 33.80.Rv (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))