中国物理B ›› 2013, Vol. 22 ›› Issue (9): 93701-093701.doi: 10.1088/1674-1056/22/9/093701

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Photoassociation of ultracold RbCs molecules into the (2)0- state (v=189,190) below the 5S1/2+6P1/2 dissociation limit

常雪芳, 姬中华, 元晋鹏, 赵延霆, 杨勇刚, 肖连团, 贾锁堂   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2013-01-04 修回日期:2013-03-12 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the International Science & Technology Cooperation Program of China (Grant No. 2011DFA12490), the National Natural Science Foundation of China (Grant Nos. 61275209, 10934004, and 11004125), and the National Natural Science Foundation for Excellent Research Team, China (Grant No. 61121064).

Photoassociation of ultracold RbCs molecules into the (2)0- state (v=189,190) below the 5S1/2+6P1/2 dissociation limit

Chang Xue-Fang (常雪芳), Ji Zhong-Hua (姬中华), Yuan Jin-Peng (元晋鹏), Zhao Yan-Ting (赵延霆), Yang Yong-Gang (杨勇刚), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China
  • Received:2013-01-04 Revised:2013-03-12 Online:2013-07-26 Published:2013-07-26
  • Contact: Zhao Yan-Ting E-mail:zhaoyt@sxu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the International Science & Technology Cooperation Program of China (Grant No. 2011DFA12490), the National Natural Science Foundation of China (Grant Nos. 61275209, 10934004, and 11004125), and the National Natural Science Foundation for Excellent Research Team, China (Grant No. 61121064).

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摘要： Ultracold polar RbCs molecules are produced via photoassociation in a laser-cooled mixture of 85Rb and 133Cs atoms. The a3Σ+ state molecules which decay from electronically excited (2)0- state RbCs molecules are detected by resonance-enhanced two-photon ionization. The new rovibrational levels (v=189, 190) in the (2)0- state are also observed, which exist in theory and have not been observed in experiments yet. The corresponding rotational constants are measured by photoassociation spectroscopy, which are consistent with theoretical calculations using a nonrigid rotor model.

关键词: photoassociation technique, ultracold RbCs molecules, rovibrational spectroscopy

Abstract: Ultracold polar RbCs molecules are produced via photoassociation in a laser-cooled mixture of 85Rb and 133Cs atoms. The a3Σ+ state molecules which decay from electronically excited (2)0- state RbCs molecules are detected by resonance-enhanced two-photon ionization. The new rovibrational levels (v=189, 190) in the (2)0- state are also observed, which exist in theory and have not been observed in experiments yet. The corresponding rotational constants are measured by photoassociation spectroscopy, which are consistent with theoretical calculations using a nonrigid rotor model.

Key words: photoassociation technique, ultracold RbCs molecules, rovibrational spectroscopy

中图分类号:  (Atom, molecule, and ion cooling methods)

  • 37.10.-x
34.80.Gs (Molecular excitation and ionization) 34.50.Ez (Rotational and vibrational energy transfer) 33.20.Vq (Vibration-rotation analysis)